GMC MOTORHOME 1978 User manual
A
Word
To
The
GMC
Motorhome
Owner
...
Congratulations
on
your
purchase
of a
GMC
Motorhome
.
You
have
opened
the
way
to
an
endless variety of
happy
holidays
.
This
manual
has
been
prepared
to
acquaint
you
with
the
operation
and
maintenance
of
your
Motorhome,
and
to
provide
important
safety
information
.
It
is
supplemented
by
two
convenient
folders
which
provide
additional
information
on
vehicle
maintenance
and
warranties
.
We
urge
you
to
read
these
three
publications
carefully
.
Follow
the
recommen-
dations
to
help
assure
the
most
enjoyable
and
troublefree
operation
of
your
vehicle
.
While
reading
this
manual
you
will
notice
that
some
specifications
are
given
in both
metric
and
customary
units
.
Where
precise
accuracy
is
not
needed,
some
conversions
have
been
rounded
to
even
numbers
for
your handy
use
.
An
Operating
Manual
Appendix
is
provided
with
vehicles
built
after
January
1,
1978,
which
have
a
gross
vehicle
weight
rating
(GVWR)
in
excess
of
10,000
pounds
.
This
Appendix
covers
items
relating
to
com
pliance
with
Federal
noise
emission
standards
and
includes
the
noise
emission
warranty
.
It
also
contains
information
on
maintenance
of
the
noise control
system
and
lists
acts
which
are
considered
to
be
tampering
with
the
system
.
As
noted
in
the
Appendix, tampering
with
the
noise
control
system
is
prohibited
by
Federal
Law
.
When
it
comes
to
service,
remember
that
your
GMC
Motorhome
Dealer
knows
your
vehicle
best
.
Your
dealer
is
interested
in
your
com-
plete
satisfaction
.
Return
to
him
for
Guardian
Maintenance
Service
and
any
other
repairs
you
may
require
.
To
assist
dealers in
handling
your
needs
GMC
Truck
and
Coach
maintains
a
number
of
Zone
Offices
throughout
the
country
.
If
you
have
a
problem
that
has not
been
handled
to
your
satisfaction,
please follow
the
procedure
described
under
the
"Owner
Assistance"
section
.
Thank
you
for
choosing
a
GMC
Motorhome
.
We
extend
our
best
wishes
for
many
years
of pleasant
traveling
.
Cordially,
General
Sales
Manager
1978
GMC
MOTORHOME
OPERATING
MANUAL
IMPORTANT
This
manual
should
be
considered a
permanent
part of the
vehicle
.
It
should
remain
with the
vehicle
when
sold,
to
provide
the next
owner
with
important
safety,
operating
and
maintenance
information
.
All
information,
illustrations
and
specifications
contained
in
this
manual
are
based
on
the
latest
product
information
available
at
the
time
of
printing
.
The
right
is
reserved
to
make
changes
at
any
time
without
notice
.
For
vehicles
sold
in
Canada,
substitute
the
name
General
Motors
of
Canada
Limited
when-
ever the
name
GMC
Truck
&
Coach
Division
appears
in
this
manual
.
Service
Publications
GMC
TRUCK &
COACH
DIVISION
GENERAL
MOTORS
CORPORATION
Pontiac,
Michigan
48053
X-7821
A
Part
No
.
2028572
TABLE
OF
CONTENTS
SUBJECT
PAGE
NO
.
SUBJECT
PAGE
NO
.
Important
Information
on
Cruise
Control
.
. .
.
. .
.
.
.
. .
.
. .
.
. .
19
Vehicle
Loading
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
1
Floor
Controls
.
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.
.
.
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.
.
.
. .
.
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..
.
21
Before
Driving
Your
Motorhome
.
.
.
.
.
.
.
.
.
3
Power
Brake
System
. .
.
.
.. ...
.
. .
21
Driver
Checklist
.
.
.
.
. . .
. . .
.
.
.
.
.
.
.
.
3
Headlight
Dimmer
Switch
.
. .
.
. .
.
. .
22
Guard
Against
Theft
.
. . .
.
.
.
.
.
.
.
.
.
.
.
3
Headlight
"Flicker
. . . .
.
.
.
.
... ... ..
22
Inside
Rearview
Mirror
.
.
.
.
.
.
.
. . .
.
.
.
4
InstrumentPanel
and
Controls
.
.
. .
.
. .
22
Outside
Rearview
Mirror
.
.
. . .
.
.
.
.
.
.
.
4
Speedometer
and
Odometer
. . .
.
...
22
Keys
. . . .
. .
. . . . .
.
.
.
.
.
.
.
.
.
. .
.
. .
4
Fuel
Gauge
. .
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.
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.
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.
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.
22
Entrance
Door
.
.
.
.
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.
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.
.
.
. . . . .
4
Temperature
Gauge
.
. .
.
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.
.
. .
.
22
Seats
.
.
.
.
.
.
.
.
.
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. . . .
.
.
.
.
.
.
.
.
.
5
Oil
Pressure
Gauge
.
.
.
. .
.
. .
.
.
. .
.
.
23
Head
Restraint
for
Dual
Passenger
Seat
.
8
Charging
System
Warning
Light
.
. .
.
23
Belt Restraints
.
.
.
. .
. . . . . .
.
.
.
.
.
.
.
.
9
Brake
System
Warning
Light
.
. .
.
. .
24
Restraint
of
Pregnant
Women
.
. .
.
.
.
.
.
9
Tell-Tale
Warning
Light
Cluster
. .
.
.
24
Lap
Belt
Inspection
.
.
. . . .
.
.
.
.
.
.
.
.
.
10
Voltmeter
.
. . . .
.
.
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.
.
.
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.
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.
.
. .
.
25
Child
Restraint
.
.
.
.
.
.
.
.
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.
.
.
.
.
.
.
10
Headlight
Switch
.
.
.
. .
.
.
. .
.
.
.
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.
25
Trailer
Towing
.
.
.
.
.
.
.
.
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.
.
.
.
.
.
.
.
.
10 Windshield
Wiper
Lever
. .
.
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.
.
.
. .
25
Operation
In
Foreign
Countries
.
. . . . .
.
11
Windshield
Washers
. .
.
.
. . . .
.
. .
.
.
25
Trip
Tips
.
.
.
.. .
. .
.
.
. .
.
.
.
.
.
.
.
.
.
.
.
12 Fuel
Selector
Switch
.
..
.
.
. .
.
.
.
.
. .
26
Driving
Tips
.
.
.
.
.
.
.
.
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.
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.
.
.
.
.
.
13
Battery
Boost
Switch
. .
.
.
. .
.
.
.
.
. .
.
26
Starting
and
Operating
Vehicle
.
. . . . .
.
. .
15
Cigar-Cigarette
Lighter
.
.
. .
.
.
.
. .
.
.
26
Engine
Exhaust
Gas
Caution
.
.
. . . . . .
15
Automotive
Heating
and
Air
Conditioning
System
.
.
. .
.
.
.
. .
.
.
26
Steering
Column
Controls
.
.
.
.
.
.
.
.
.
.
16
Anti-Theft
Steering
Column
Lock
.
.
.
16
Radios
and
Tape
Player
. .
.
. .
.
.
.
. .
27
Guard
Against
Theft
. . .
.
.
.
.
.
.
.
.
.
.
16
Mobile
Radio
Systems
.
. .
.
. .
.
.
30
Parking
.
.
.
.
.
.
.
.
.
.
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.
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.
. .
17
Electro-Level
System
.
.
.
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.
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.
.
. .
30
Starting
the
Engine
.
.
.
.
.
.
.
.
.
.
.
. .
17
Operation
of
Living
Area
Facilities
. .
.
. . . .
33
New
Vehicle
"Break-In"
Period
. .
.
. .
17
Living
Area
Facilities
Caution
.
.
. .
.
. .
33
Automatic
Transmission
.
.
.
.
.
.
.
.
.
.
18
Living
Area
Electrical
System
.
.
. .
. .
.
.
33
Turn
Signal
Lever
. . .
.
.
.
.
.
.
.
.
.
. .
18
General
Information
. . . .
. .
.
..
.
. .
.
33
HazardWarning
Flasher
.
.
.
.
.
.
.
.
. .
19
120-Volt
To
12-Volt
Converter
Horn
Control
. .
. . .
.
.
.
.
.
.
.
.
.
.
.
. .
19
and
Battery
Charger
.
. .
.
. .
.
. .
.
34
Power
Steering
.
. . . .
.
.
.
.
.
.
.
.
.
. .
.
19
External
Power
.
.
. .
.
.
. .
.
. .
.
. .
.
. .
34
Tilt
Steering
Wheel
.
.
.
.
.
.
.
.
.
.
.
.
.
19
Lighting
System
. .
. . . .
. .
.
.
. .
.
. .
.
35
SUBJECT
PAGE
NO
.
Monitor
Panel
.
.
.
.
.
.
.
.
. . . .
.
.
. .
.
35
Motor
Generator
.
.
.
.
.
.
. . . .
.
.
. .
.
36
Exterior
Receptacle
.
.
.
. . . .
.
.
. .
.
.
37
Living
Area
WaterSystem
.
.
.
.
. .
.
.
. .
38
Filling
Water
Tank
.
.
.
.
.
.
. .
.
.
.
.
.
38
External
Water
Connection
.
.
. .
.
.
.
38
Water
Pump
.
.
.
.
. . . . .
. . . .
.
.
.
. .
.
39
Water
Heater
.
.
.
.
.
.
.
.
. . . .
.
.
.
.
. .
40
Kitchen
Facilities
.
.
.
.
.
.
.
.
.
.
.
.
. .
.
.
.
41
All-Electric
Refrigerator
.
.
.
.
. .
.
.
.
.
41
PowerRange
Hood
.
.
. .
.
.
.
.
.
. .
.
.
42
L
.P
.
Gas
Kitchen
Range/Oven
.
.
.
.
.
42
L
.P
.
Gas
Cook
Top
. .
.
. . . .
.
.
.
. .
.
.
44
Microwave
Oven
.
.
.
.
.
.
. .
.
.
.
.
. . .
45
Kitchen
Sink
and
Faucet
. . .
.
.
.
. .
.
.
54
Water
Treatment
Unit
.
.
. .
.
.
.
.
.
. .
55
Bathroom
Facilities
.
. . .
.
.
.
.
. .
.
.
.
.
.
55
Standard
Toilet
.
. . .
. .
.
.
. . . .
.
.
.
.
55
Recirculating
Toilet
.
. . . .
.
.
.
.
. .
.
.
56
Bathroom
Sink
and
Shower
Control
Valve
.
. .
.
.
.
. .
.
.
5 7
Bathroom
Warm
Air
Duct
. .
.
.
.
. . . .
5 7
Bathroom
Exhaust
Vent
and
Fan
.
.
. .
57
Ventilation
.
.
.
.
.
. . . .
.
.
. .
.
.
.
.
. .
.
.
.
58
Windows
.
. .
. . .
.
. . . .
.
.
.
. .
. . .
.
.
58
Ceiling
Vents
.
.
.
. .
.
.
.
. . . .
.
.
.
. .
.
59
Roof-Mounted
Air
Conditioner
. . .
.
. .
.
60
Emergency
Starting
.. ..
.
.
.
. .
.
.
.
. .
.
71
Jump
Starting
.
.
.
.
.
.
. .
.
.
.
. .
.
.
. .
.
.
71
TABLE
OF
CONTENTS
SUBJECT
PAGE
NO
.
Engine
Coolant
.
. .
.
.
.
.
. .
.
.
.
.
.
.
. . .
.
73
Engine
Coolant Caution
.
. .
.
.
.
.
.
.
.
.
.
73
Jack
Usage
Instruction
.
.
.
.
.
. . .
. . . .
.
74
Towing
.
. .
.
.
. .
.
.
.
. .
.
.
. . .
. .
.
.
.
.
.
.
76
Freeing
Vehicle
From
Sand,
Etc
.
.
.
.
.
.
.
77
Rear
Suspension
Failure
.
.
. . . .
.
.
.
.
.
.
77
Emergency
Exit
.
.
.
. .
.
.
.
.
.
. .
.
.
.
.
.
.
78
Fire
Extinguisher
.
. .
.
.
.
.
.
. .
.
.
. . . .
.
79
Appearance
Care
. . .
.
. .
.
.
.
.
.
.. . .
.
. .
.
81
Care
and
Cleaning
of
Interior
.
. .
.
. . .
. .
81
Cleaning
Fabrics
(With
Foam-Type
Cleaner)
. . .
.
.
81
Cleaning
Fabrics
(With
Solvent-Type
Cleaner)
. .
.
.
82
Removal
of Specific
Stains
. .
.
.
.
.
. .
.
82
CleaningLeather
or
Vinyl
Trim
.
. .
.
82
Seat
Belt
Care
.
.
.
.
.
. .
.
.
.
. . . .
.
.
.
82
Glass
Surfaces
.
.
. .
.
.
.
.
.
. .
.
.
.
. .
.
.
82
Vacuum
Cleaner
.
.
.
.
.
. . . .
.
.
. .
. . .
84
Draperies
.
.
. . . .
.
.
.
.
. .
.
.
.
. . . . . .
85
Kitchen
Sink
.
.
.
.
.
. . . .
.
.
. . . .
.
.
.
.
85
Power
Range
Hood
Filter
.
. . . .
.
.
.
.
85
L
.P
.
Gas
Range/Oven
.
.
. . . .
.
.
.
.
..
85
L
.P
.
GasCook
Top
.
. .
.
.
.
.
. . . .
.
. .
86
Microwave
Oven
.
. . . .
.
.
. .
.
.
.
. .
.
86
Exterior
Appearance
Care
.
.
. .
.
.
. .
.
.
.
86
Washing
.
.
. .
.
.
.
.
. .
.
.
.
.
. .
.
.
.
. .
.
86
Cleaning
White
Sidewall Tires
.
.
.
.
.
.
87
Underbody
Maintenance
.
.
.
.
.
. .
.
.
.
87
Furnace
.
.
.
.
.
.
.
.
.
. .
.
.
.
.
. .
.
.
.
.
.
. .
61
Polishing
and
Waxing
.
. .
.
.
. .
.
.
.
.
.
86
Protection
of
Exterior
Furniture
.
.
.
.
.
.
.
.
. .
.
.
.
.
.
. .
.
.
. .
.
.
63
Bright
Metal
Parts
.
.
. . . .
.
.
.
. .
.
87
In
Case
of
Emergency
. . .
.
.
. . . .
.
.
.
. .
.
.
71
Foreign
Material
Deposits
.
. . . .
.
.
.
.
87
Four-Way
Hazard
Warning
Flasher
. .
.
.
71 Finish
Damage
.
.
. .
.
.
.
.
. .
.
.
.
.
.
. .
87
SUBJECT
PAGE
NO
.
Undercoating
.
. . . .
.
.
.
.
.
.
.
.
.
.
.
. .
87
GM
Appearance
Care
and
Maintenance
Materials
. .
.
.
.
. . . .
88
Service
and
Maintenance
.
.
.
.
.
.
.
.
.
.
. . . .
89
Maintenance
Schedule
.
.
.
.
.
.
.
.
.
.
.
.
.
89
NIASE
Mechanic
Certification
.
. . . . . .
89
Accessibility
.
.
.
. . . .
.
.
.
.
.
.
.
.
.
. . .
.
.
90
Exterior
Compartments
. . .
. .
. . . .
.
90
Engine
Accessibility
. . .
. .
. . .
. . . .
.
93
Engine
Compartment
Light
.
.
.
. . . .
.
93
Hoisting
Instructions
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
93
Lubrication
Details
.
.
.
.
.
.
.
.
.
.
.
.
.
. .
.
94
Engine
.
.
.
.
.
. . .
. . .
. . .
. . .
. . . .
.
.
94
Transmission
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. .
96
Final
Drive
.
.
. . . .
.
. . .
. . .
. . . . .
.
.
97
Steering
System
.
. .
. .
. . . .
. . .
.
.
.
.
98
BrakeSystem
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. . . .
98
Servicing Details
. . .
.
.
.
.
.
.
.
.
.
.
.
.
. .
.
99
Engine
Cooling
System
.
.
.
. . .
.
.
.
.
.
99
EngineFuel
System
.
.
.
.
.
.
.
.
.
.
.
. .
101
Carburetor
.
.
.
.
.
. . .
.
.
.
. . . . .
. .
.
.102
Engine
Air
Cleaner
.
.
.
. . .
.
. . .
.
.
.
.
102
Chassis
Electrical
System
.
.
.
.
.
.
.
.
.
102
Wheels
and
Tires
.
.
.
. . .
.
.
.
.
.
.
.
.
.
104
Wheel
Bearings
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
108
Front
Suspension
.
.
.
.
.
. . .
. . . .
.
.
.
108
TABLE
OF
CONTENTS
SUBJECT
PAGE
NO
.
Rear
Suspension
.
. .
.
.
. .
.
. .
.
. .
.
. .
109
L
.P
.
Gas
System
.
.
.. ...
.
.
. .
.
. .
. .
111
Living
Area
Electrical
System
.
.
. .
. .
112
Onan
Motor
Generator
Maintenance
.
116
Standard
Toilet
. . . . . .
.
. .
.
. .
.
. .
.
118
Recirculating
Toilet
.
. .
.
.
. .
. .
.
. .
.
119
Draining
Holding
Tank
.
.
.
. .
.
. .
. .
.
120
Draining
Living
Area
Water
System
.
.120
Water
Tank
Filter
. . .
.
. .
.
. .
.
. .
. .
121
Sanitizing
Living
Area
Water
System
.
.
. .
.
. .
.
. .
.
. .
. .
122
Winterization
.
.
. . . .
.
.
. .
.
. .
.
. .
.
.123
Vehicle Storage
.
.
. .
.
. .
.
.
. .
.
. .
. .
123
Vehicle
Trip
Preparation
.
. .
.
. .
.
. .
125
General Data
and
Specifications
.
.
. .
.
. .
. .
129
Owner
Assistance
.
.
. .
.
. .
.
.
.
. .
.
. .
.
. .
.
137
U
.S
.
Zone
Territories
.
.
. .
.
. .
.
.
. .
.
. .
.
138
U
.S
.
Zone
Offices
.
. .
.
.
. .
.
.
. .
.
.
. .
.
. .
139
General
Motors
Overseas
Offices
.
. .
.
. .
139
GM
of
Canada
Limited-Zone
Offices
.
. .
140
After-Hour
Information
Service
. .
.
. .
. .
141
Emergency
Service
.
. .
.
.
.
.
. .
. .
.
. .
.
.
141
Maintenance
Manual
and
Parts
Book
. .
141
Facts
About
Gasoline
Mileage
. .
.
..
. .
142
Index
(Alphabetical
)
. . .
.
. .
.
.
. .
.
. .
.
. .
.
143
Gas
Station
Information
. .
Inside
Back
Cover
IMPORTANT
INFORMATION
ON
VEHICLE
LOADING
OVERLOADING
CAUTION
The
components
of
your
vehicle
are
designed
to
provide
satisfactory service
if
the
vehicle
is
not
loaded
in
excess
of
either
the
Gross
Vehicle
Weight
Rating
(GVWR)
or
the
maximum
Front
and
Rear
Gross
Axle
Weight
Ratings
(GAWR's)
.
yThese
ratings
are
listed
on
the Vehicle
Identification
Number
(VIN)
plate
located
behind
the
right front
access
door
.
-
Overloading
can
create
serious
potential
safety
hazards
and
shorten
the
service
life
of
your
vehicle
.
Your
dealer
can
advise
you
concerning
proper
loading
conditions
of
your
vehicle
.
When
loading
the
Motorhome,
it is
impor-
tant that
it is
properly
loaded
.
All
items
should
be
loaded
as
centrally
and
as
low
as
possible
.
This
is
essential
to
maintain
proper
vehicle
handling
.
Even
though
a
single
item
may
not
weigh
much
alone,
several
of
these
items
may
have
considerable
weight
.
Proper
loading
is
essential
.
MAXIMUM
FRONT
AND
REARAXLE
WEIGHTS
(AS
MANUFACTURED)
The
weight
of
the
cargo
load
must
be
properly
distributed
over
both
the
front
and
rear
axles
.
The
VIN
plate
shows
the
maximum
weight
that
the
front
axle
can
carry
(front
GAWR)
and
the
maximum
weight
that the
rear axle
(rear
GAWR)
can
carry
.
The
GVWR
represents
the
maximum
permissible
loaded weight
of
the
vehi-
cle
and
takes
into
consideration
the
engine,
transmission,
frame,
suspension,
brake,
axle
and
tire
capabilities
.
Actual
front
and
rear
end
weights
can
only
bedeterminedby
weighing
the
vehicle
.
This
can
be
accomplished
through
high-
way
weigh
stations or
other
such
commercial
facilities
.
Consult
your
dealer
for
assistance
.
The
cargo
load
should
be
distributed
on both
sides
GVWR
RATING
12,500
LBS
.
FRONT
GAWR
4,500
LBS
.
REAR
GAWR
8,000
LBS
.
MAXIMUM
TOTAL
WEIGHT
AT
GROUND
12,500
LBS
.
*Curb
weight
is
the
maximum
weight
of the
vehicle
without
driver,
passengers,
or
cargo,
and
empty
fresh
water,
LP,
and
holding
tanks,
but does
include
fuel
and
coolant
.
Vehicle
Loading
1
of
the
centerline
of
the
vehicle
as
equally
as
possible
.
ALLOWABLE
LATERAL
WEIGHT
VARIATION
The
independent
suspension
on
this
vehicle
could
be
adversely
affected
byan
unbalanced
load
on
either
side
of
vehicle
.
The
allowable
front
lateral
weight
variation
is
250
pounds
.
The
allowable
rear
lateral
weight
variation
is
600
pounds
.
Lateral
weight
variations
in
excess
of
the
above,
can
result
in
abnormal
vehicle
handling
.
VIN
(Vehicle
Identification
Number)
Plate
Your
VIN
plate
shows
the
GVWR
and
the
front
and
rear
GAWR's
for
your
vehicle
.
GENERAL
MOTOR
CORPORATION
0
1
WARRANTY
MAY
BE
VOIDED
If
WEIGHT
EXCEEDS
ANY
OF
RATINGS
SHOWN
.
GROSS
VEHICLE
WEIGH
T
INCLUDES
WEIGHT OF BASE
VEHICLE,
ALL
ADDED
EQUIPMENT,
DRIVER
AND
PASSENGERS,
AND
ALL
PROPERTY
LOADED
INTO
OR ONTO
VEHICLE
.
GROSS
VEHICLE
WEIGHT
FOR
THIS
VEHICLE
MAXIMUM
FRONT
END
WEIGHT
ATGROUND
MAXIMUM
REAR
END
WEIGHT
AT
GROUND
VEHICLE
IDENTIFICATION
NO
.
RATINGS
IN
POUNDS
-
AS
MANUFACTURED
Vehicle
Identification
Plate
EFFECT
ON
WARRANTY
TIRES
For
continuing
satisfaction
keep
your
vehicle
all
GM
.
General
Motors
Parts
are
identified
by
one
of these
trademarks
:
D
V
Delco
Gross
Vehicle
Weight
(GVW)
is
the
weight
of
the
originally
equipped
vehicle
and
all
items
added
to
the
vehicle
after
it
has
left
the
factory
.
This
would
include the
driver
and
all
occupants,
and
everything
that
is
loaded
into
(or
onto) the
vehicle
.
The
GVW
must
not
exceed
the
GVWR
.
Also,
the
front
and
rear
weights
of
the
loaded
vehicle
must
not
exceed
the
front
and
rear
GAWR's
.
CAUTION
Luggage
or
other
cargo
should
be
secured
in
place,
This
will
help
keep
such
things
from
being
thrown
about
and
injuring
people
in
the
vehicle
in
accident
.
Your
New
Vehicle
Warranty
does
not
apply
to
any
part
of
your
vehicle
"which
has
been
subject
to
misuse
."
Any
part
which
fails
because
of
over-
loading
has
been
subject
to
misuse
.
The
tires
on
your
vehicle
should
be
of
the
proper
size
and
be
properly
inflated
.
It
is
important
to
avoid
over-inflation
as
well
as
under-inflation
.
See
the
SERVICE
AND
MAINTENANCE
sec-
tion
for
proper
tire
inflation
pressures
.
BEFORE
DRIVING
YOUR
MOTORHOME
DRIVER
CHECK
LIST
BEFORE
ENTERING
VEHICLE
1
.
See
that
windows,
mirrors,
and
lights
are
clean
.
2
.
Check
whether
any
tire
is
low
or
flat
.
(You
may
need
to
check
wtih
a
gauge
to
tell
if
radial
tires
are
properly
inflated
.)
3
.
Check
that
all
exterior
lights
work
.
4
.
Look
for
fluid
leaks
.
5
.
Turn
off
LP
gas
valve
on
LP
tank (See
CAUTION
under
"LP
Gas
System"
in
SER-
VICE
AND
MAINTENANCE
section)
.
6
.
Check
that
sewer
connection,
all
external
compartments,
and
filler
openings
are
prop-
erly
stowed
or
closed
and/or
locked
.
7
.
Check
that
items stored
on
exterior
of
ve-
hicle
are
securely
lashed
.
8
.
Will
any
items
stored
on
exterior of
vehicle
present a
clearance
problem?
9
.
Are
there
any
rocks,
posts,
low-hanging
lines
or
branches
under
or
near
the
vehicle
you
must
avoid
before
driving
away?
10
.
Check
area
behind
vehicle
if
about
to back-
up
.
BEFORE
DRIVING
OFF
1
.
Lock
entrance
door
.
2
.
Check
that
all
windows
are
in
suitable
position
for
travel
(See
"Engine Exhaust
Gas
Caution
(Carbon
Monoxide)
"
at
the
beginning
of
STARTING
AND
OPER-
ATINGVEHICLE
section
.)
Close
all
roof
vents
.
3
.
Turn
off
living
area
water
pump
.
4
.
Check
that
refrigerator
door
is
fastened
.
5
.
Check
that
nothing
heavy
is
stored
in
over-
head
or
high
cabinets-it
may
fall
out
en-
route
and
cause
injury
.
Be
sure the
gun,
ammunition,
and
fishing
equipment
cabinets
are
locked,
if
vehicle
is
so
equipped
.
6
.
Close
and
secure
bathroom,
closet,
and
all
cabinet
doors
and
drawers
.
7
.
Check
that
counter
tops,
range
top,
kitchen
sink,
table
tops
and
shelves
are
clear-even
small
items
may
become
projectiles
in
an
accident
.
It
is
not
safe
to
cook
while
under-
way-hot
food
or liquid
may
scald
in
a
sud-
den
stop
or
accident
.
8
.
Be
sure
all
LP
gas
controls
on
furnace,
range/oven
and
gas/electrical
refrigerator
(if
so
equipped)
are
turned
off
.,
9
.
Check
that
all
interior
stowage
is
securely
held
.
10
.
Check
that
all
lights
and
switches
are
set
in
positions suitable
for
travel
.
11
.
Adjust
driver's
seat
for
comfort
.
12
.
Check
that
driver's
and
front
passenger's
seat,
and any
other
swivel-mounted
seats
are locked
in
position
.
13
.
Adjust
inside
and
outside
mirrors
.
Adjust
curtains
where
necessary
for
visibility
.
14
.
If
vehicle
is
equipped
with
optional
Electro-
Level
System
II,
check
that
TRAVEL
switch
is
positioned
in
"AUTO"
.
Switch
should
be
moved
to
"HOLD"
after
5
minutes
.
15
.
Fasten
belt
restraints
.
16
.
Check
that
warning
light
bulbs
light
when
key
is
turned
to
"ON"
or
"START"
position
.
17,
Check
all
gauges
.
18
.
Release
parking
brake,
and
see
that
the
"PARK
BRAKE"
light
turns
off
.
19
.
With
engine
running,
check
that
warning
lights
are
now
out
.
20
.
Be
sure
you
know
your
vehicle
and
how
to
operate
it
and
its
system
and equipment
safely
.
21
.
It
is
recommended
that
you
refer
to
"TRIP
TIPS"
and
"DRIVING
TIPS"
at
the
end
of this
section
for
additional
information
.
CAUTION
Counter
and
table
tops
should
not
be
used
for
storage
when
underway-even
for
light
weight,
small
articles
.
They
might
become
dangerous
projectiles
dur-
ing
an
accident
.
Heavy
items
stored
in
overhead
or
waist-high
cabinets
may
also
cause
injury
if
a
sharp
turn or
stop
causes
them
to
topple
against
inside
of
cabinet
door,
forcing
it
open
.
Store
canned
goods
and
other
heavy
items
down
low
.
Be
sure
the
gun,
ammuni-
tion,
and
fishing
equipment
cabinets
are
locked,
if
vehicle
is
so
equipped
.
GUARD
AGAINST
THEFT
For
tips
on
how
to
protect
your
vehicle
and
its
contents, see the
"Steering
Column
Controls"
section
of
this
manual
.
Inside
Rearview
Mirror
INSIDE
REARVIEW
MIRROR
The
mirror
can
be
adjusted
up,
down,
or
side-
ways
to
obtain the best
view
to
the
front
and
rear
.
Move
the
mirror
lever
to
the
night
position
to
reduce
glare
from
headlights
of
vehicles
be-
hind
you
.
OUTSIDE
REARVIEW
MIRROR
Adjust
the
outside
mirror
so
you
can
just
see
the
side of
your
vehicle
in
the
side of
the
mirror
closest
to the
vehicle
.
KEYS
Two
different
keys
are
provided
for
the
locks
on your
VEHICLE
.
The
key
code
is
stamped
on
DOOR
LATCH
Entrance
Door
Latch
the
"knock
out"
plug
in
each
key
head
.
Key
with
square
head
(letter
"J")-for
igni-
tion lock
only
.
Key
with
oval
head
(letter
"K")-for
all
other
locks
.
For
vehicle
security
"
Recordkey
code
numbers
;
then
knock
plugs
out
of
keys
.
Keep
the
key
codes
in
a
safe
place
such
as
your
wallet,
NOT
IN
THE
VEHICLE
.
If
the
original
keys
are
lost,
duplicates
can
be
made
using the
key
codes
.
Contact
any
GM
dealer
or
your
locksmith
.
If
you
park
in
an
attended
lot,
separate
and
leave
your
square
ignition
key
only
.
Lock
your
glove
box
(also
all
other
compartments
with
key
locks)
and
take the
round
key
with
you
.
This
will
help prevent
any
illegal
entry
into
the
glove
box
or
any
other
compartments
with
locks
.
If
the
refrigerator
is
equipped
with
a
lock,
a
third
key
will
be
provided
.
ENTRANCE
DOOR
Doormust
be
locked
from
outside
the
vehicle
by
inserting
the
key
into
the door
key
lock
and
turning
.
To
unlock,
turn
in
the clockwise
direc-
tion
.
Reverse
the
direction
to
lock
.
To
lock
door
from
inside
vehicle,
push
the
lock
button
DOWN
.
To
unlock
and
open
door
from
the
inside,
pull
the
lock
button
UP
and
pull
on
inside
door
handle
.
Seat
Track
Mechanism
(Typical)
CAUTION
For
safety's
sake,
always
lock
the en-
trance
door
when
driving
.
This
pro-
vides
greater
safety
in
accidents,
and
helps
keep
children
from
opening
the
door
.
It
also
helps
keep
out
intruders
when
stopped
for
lights,
etc
.
SEATS
DRIVER
AND
FRONT
PASSENGER
SEATS
The
driver
and
front
passenger
seats
may
be
adjusted
to
suit
an
individual's
preference
.
To
move
seat
forward
or
backward,
simply
re-
lease
the
seat
locking
lever
located
on
the
aisle
side
of
the
seat
.
Once
released,
exert
slight
body
pressure
in
the
direction
desired
.
Release
lever
to
lock
the
seat
in
the
desired
position
.
The
seats
can be
swiveled
to
provide
easy
entrance
and
exit
.
To
swivel
seat,
depress
seat
swivel
lever
(as
shown), then
rotate
seat
.
The
seats
are designed
to lock
only
in
the
forward
facing
position
.
CAUTION
After
adjusting
a
manually
operated,
seat,
push
-forward
and
backward
on
seat
and
twist
seat
to
he
sure
the
seat
adjusters
and
swivel
lock
have
latched
.
Movement
of
the
seat
indicates that at
least
one
latch
or
the
lock
did
not en-
Seat
Swivel
Mechanism
(Typical)
gage
.
This
could
increase
the
chance
of
injury
and/or
the
amount
of
injury
in
an
accident
.
Take
the
vehicle
to
your
dealer
for service
if
you
find
that
your
seat
adjusters
do
not
latch
.
Do
not
adjust
a manually
operated
driver's
seat
swivel
or
fore
and
aft
lever
while
the
vehicle
is
moving
.
The
seat
could
move
suddenly
and
could
cause
the
driver to lose control
of
the
vehicle
.
Dual
Passenger
Seat
Swivel
Mechanism
Dual
Passenger
Seat
in
the
Swivelled
Position
NOTICE
:
The
optional
dual
passenger
seat
may
be
swiveled
by
raising
the swivel
lever
(as
shown),
then
rotate
seat
.
If
the
vehicle
is
equipped
with
a
dinette
behind
the
dual
pas-
senger
seat,
it
will
be
necessary
to lower the
rear
facing
dinette
seat
(as
shown)
.
This
will
allow
the
dual
passenger
seat
to
be
swivelled
to
the
desired
position
.
Armrests
The
driver
and
front
passenger
seats
are
equipped
with
armrests
.
When
armrests
are
being
used,
they
should
be
placed
in
the
DOWN
position
(as
shown)
.
To
use,
grasp
armrest
by
the
front
and
lift,
until
arm-
rest
is
in
the
UP
position
(as
shown)
.
To
lower,
Armrest
in
the
DOWN
Position
Armrest
in
the
UP
Position
grasp
armrest
by
the
front
and
lift,
then
lower
assembly
(as
shown)
into seat
.
LIVING
AREA
SWIVEL
SEATS
The
optional
swivel
seats
(behind
the
driver's
seat)
may
be
swiveled
or
adjusted
for
height
as
described
in
the
following
:
Swiveling
Seat
1
.
To
swivel
seat
to
desired
position,
depress
seat
locking
lever
(straight
handled
lever
lo-
cated
on
right
side of
pedestal-below
right
side
of seat in
travel position)
.
2
.
To
temporarily
hold
seat
in
position,
while
vehicle
is
stationary,
tighten
seat
friction
lever
(angled
lever
on
the
left
side of
pedestal-below
left
side of seat in travel
position)
by
rotating
lever
clockwise
.
3
.
To
return
swivel
seat to
the
correct
posi-
tion
for
traveling,
first
loosen the
swivel
seat
Lowering
Armrest
Releasing
Living
Area
Swivel
Seat
Locking
Lever
friction
lever
by
rotating
counterclockwise
1 1
/2
to
2 turns
.
4
.
Before
driving
off,
ALWAYS
rotate
seats
to
travel
position
(both
swivel
seats
facing
each
other)
.
Check
that
swivel
seat
is
locked
in
posi-
tion
by
attempting
to
rotate
seat
.
5
.
If
either
living
area
swivel
seat
does
not
lock
properly,
perform
swivel
seat
"Height
Ad-
justment"
as
described
below
.
If
swivel
seat
Positioning
Living
Area
Swivel
Seat
Friction
Lever
Living
Area
Swivel
Seats
Positioned
for
TRAVEL
mechanism
still
does
not
lock
properly,
take
the
vehicle
to
your
dealer
for
service
.
Height
Adjustment
1
.
Using
two
1
/2
"
wrenches
loosen
the
collar
retaining
bolt
and
nut
assembly
.
2
.
Depress
swivel
seat
locking
lever
.
Then
raise
or
lower
seat to
desired
height
.
Be
sure
swivel
seat
locking
lever
enters
one
of
the
holes
provided
in
seat
tube
by
attempting
to
rotate
seat
.
If
seat
rotates,
locking
lever
is
not
entering
hole
.
Readjust
seat
height
until
it
does
.
Then
tighten
collar
retaining
bolt
and
nut
assembly
.
Adjusting
Height
of
Living
Area
Swivel
Seat
"Buckling
Up"Lap
Belt
HEAD
RESTRAINTS
FOR
DUAL
PASSENGER
SEAT
NOTICE
:
The
optional
dual
passenger
seat
may
be
equipped
with
a head
restraint
.
To
raise or
lower,
slide
the
head
restraint
up
or
down
.
BELT
RESTRAINTS
Your
GMC
Motorhome
is
equipped
with
lap
belts
in
the
driver
and
front
passenger
seating
position(s), as
well
as
certain
other
seating
loca-
tions
in
the
Motorhome
.
To
help
lessen
the
chance
of
injury
and/or
the
amount
of
injury
in
accidents
or
sudden
stops,
General
Motors
urges
that
people
riding in
the
vehicle
be
properly
restrained
at
all
times,
using
the
seat
belts
pro-
vided
.
This
includes
pregnant
women,
and
chil-
dren
of
all
ages
.
See
following
pages
for
use
of
restraints
by
children
and
pregnant
women
.
CAUTION
A
snug
fit
with
the
lap
belt
positioned
low on
the
hips
is
necessary
to
help
lessen
the
chance
of
injury
and/or
the
amount
of
injury
in
an
accident
.
This
spreads
the
force
of
the
lap
belt
over
the
strong
hip
bone
instead
of
across
the
soft
abdomen
.
To help
lessen
the
chance
of
injury
and/or
the
amount
of
injury
in
an
accident
:
Never
use
the
Lap
Belt
(Front
Seating
Positions)
same
belt for
more
than
one
person
at
a
time
;
do
not
wear
twisted
belts
;
and
do
not
damage
belts
or belt
hardware
by
pinching
them
in
the
seat or
door
.
Always
put
on
the lap
belt
with
both
armrests
DOWN
.
Also take
care that
the lap
belt
is
not
wedged
between
the
armrest
and
the
seat
.
Once
the
lap
belt
is
buckled
snugly,
the
armrest
may
be
used
.
DO
NOT
put the lap
belt
in
front
of,
through,
or on
top
of
the
armrest
when
the
armrest
is
in
use
.
See
illustrations
for
proper
placement
of
lap
belts
.
DO
NOT
put
lap
belts
over
the
arm-
rests
of
the
optional
living
area
swivel
seats
.
To help
achieve
a
snug
fit
and
low
lap
belt position,
these
belts
MUST
be
routed
between
the
seat
cushion
and
the
armrests
.
The
front
outboard
seating
positions-have
belt
retractors
which
are
designed
to
automatically
take
up
excess
webbing
.
Adjust
the
seat as
needed
and
sit
up
straight
and
well
back
in
the
seat
.
In
a
single
motion,
pull
the
lap
belt
webbing
across
the lap
far
enough
to
push
the
latch
plate
into
the
buckle,
until
it
clicks
.
If
the
webbing
is
not
pulled
out
far
enough
to
reach
the
buckle,
let
the lap
belt
rewind
fully
into
the
retractor
.
This
unlocks
the
retractor
so
the
belt
can
be
pulled out
to
the
proper
length
.
"
Position
the
belt
across
the
lap
as
LOW
ON
THE
HIPS
as
possible
.
Then
adjust
to
a
SNUG
FIT
by
pulling
the
belt
firmly
across
the lap
toward
the lap
belt
retractor,
so
it
can
take
up
slack
.
This
reduces
the
risk
of
sliding
under
the
belt
during
an
accident
.
The
belt
retractor
is
designed
to
take
up
extra
webbing
by
itself
.
To
unfasten
the
belt,
push
the
button
in
the
center
of
the
buckle
.
When
no
longer
in
use,
the
lap
belt
can
be
stowedby
letting
it
rewind
into
its
retractor
.
NOTICE
:
Do
not
let
the
belt
twist
while
it is
being
rewound
into
the
retractor
.
The
bulk
of
the twisted
belt
may
cause
the
retractor
to
jam
so
it
will
not
rewind
further
.
At
the
same
time
the
retractor
lock
may
keep
the
belt
from
being
pulled
out
.
If
a
belt
should
get
jammed,
you
may
be
able to
release
it
by
working
the
belt in
and
out
until
the
belt
rewinds
far
enough
to
unlock
.
If
the
belt
remains
jammed,
or
other
parts
of
the
restraint
systemdo
not
work
prop-
erly,
take the
vehicle
to
your
dealer
for
service
.
The
front
inboard
passenger
seating
position
(dual
passenger
seat
ONLY)-has
a "Vehicle
Sensitive
Retractor"
which
is
designed
to
lock
only
during
a
sudden
stop or
impact
.
At
other
times the
belt
is
designed
to
move
freely
with
the
rider
.
Pull the
lap
belt
across
the lap
far
enough
to
push
the
latch
plate
into
the
buckle,
until
it
clicks
.
This
belt
should
be
located,
fastened,
and
released
as described
above
under
"The
Front
Outboard
Seating
Positions
."
After
fas-
tening,
check
that
the
belt
is
SNUG
by
pull-
ing the
belt
firmly
across
the
lap
toward
the
lap
belt
retractor
.
This
will
allow the
retractor
to
take
up
slack
.
Lap
belts
at
seating
positions
other
than the
driver
and
front
passenger(s)
positions
-should
be
located,
fastened,
and
released
as
described
above
.
They
should
be
adjusted
to
a
SNUG
FIT
by
pulling
on
the
end
of
the
belt
coming
from
the adjustable
latch
plate
.
To
lengthen
the lap
belt
place the
latch plate
at
a
right
angle
to
the
belt
webbing
and
pull
on
the
latch
plate
.
The
belt
should
then
slide
easily
.
Taking
Up
Slack
with
"Vehicle
Sensitive
Retractor"
RESTRAINT
OF
PREGNANT
WOMEN
General
Motors
urges
that
pregnant
women
use the
lap
belt at
all
times
.
This
will
help
lessen
the
chance
of
a
pregnant
woman
and
her
unborn
child
being
injured
and/or
will
reduce
the
amount
of
their
injury
in
an
accident
.
The
belt
should
be
worn
as
lowand
snug
over the
hips
as
Lap
Belts
with
Adjustable
Latch
Plate
possible,
as
advised
for
regular
seat belt
use
(See
the preceding
instructions)
.
LAP
BELT
INSPECTION
"
Now
and
then
check
that
belts,
buckles,
latch
plates,
retractors
and
anchors
work
properly
.
Also
check
for
damage
that
could
keep
the
restraint
system
from
doing
its
job,
see
below
.
"
Keep
sharp edges
anddamaging
objects
away
from
the
belts
and
other
parts
of
the
restraint
system
.
"
Replace
belts
if
cut,
weakened,
or
frayed
.
Also
have
belts
replaced
if
they
have
been
worn
in
a
collision
.
"
If
there
is
any
question,
have
belts
replaced
.
Keep
belts
clean
and
dry
.
"
Clean
only with soap
and
lukewarm
water
.
"
Do
not
bleach
or
dye
belts
since
this
may
badly
weakenthem
.
CHILD
RESTRAINT
Children
in
vehicles
should
be
restrained
to
help
lessen
the
chance
of
injury
and/or
the
amount
of
injury
in
accidents
or
sudden
stops
.
In
using
any
infant
or
child
restraint
system,
be
sure
to
read
and
follow
all
instructions
on
in-
stallation
and
use
.
All
unused
lap
belts
near
the
child
should
be
stowed
properly
to
help
keep
them
from
striking
the
child
in
an
accident
.
Lap
belts
without
re-
tractors
should
have
the
buckles
latched
and
the
belts
adjusted to
remove
slack
.
If
a
child
is
riding
in
a
vehicle
without
an
infant
or
child
restraint
system,
take
care
as
follows
1
.
Infants
who
cannot
sit
up by
themselves
should
be
restrained
by
placing
them
in
a
cov-
ered,
padded
bassinet
.
Place
it
crossways
in
the
vehicle
(widthwise)
on
the
seat
.
The
bassinet
should
be
securely
restrained
with
the
regular
vehicle
lap
belts
.
2
.
Children
who
can
sit
up by
themselves
should
be
placed
on
a
seat
and
lap
belted
.
Never
let
a
child
stand
or
kneel
on
any
seat
or
else-
where
in
the
vehicle,
once
it
is
moving
.
TRAILER
TOWING
Towing
a
trailer
could
affect
handling,
dura-
bility
and
economy
.
Your
safety
and
satisfaction
depend
upon
proper use
of
correct
equipment
.
10
Also,
you
should
avoid
overloads
and
other
abusive
use
.
The
maximum
loaded
trailer
weight
you
can
pull
with your
vehicle
depends on
what
special
equipment
has
been
installed
on
it
.
We
do
not
recommend
towing
any
trailer
over
1,000
pounds
gross
trailer
weight
.
To
assist
in
attaining
good handling
of
the
Vehicle
Trailer
Combination,
it
is
important
that
the
trailer
tongue
load
be
maintained
at
approximately
10
%
of
the loaded
trailer
weight
.
Tongue
loads
can be
adjusted
by
proper
distri-
bution
of
the
load
in
the
trailer,
and
can be
checked
by
weighing
separately
the
loaded
trailer
and
then
the
tongue
.
Do
not
attempt
to
tow any
trailer
over
1,000
pounds
gross
trailer
weight
no
matter
what
trailer
towing
equipment
is
installed
.
This
could
seriously
affect
your
vehicle's
performance,
handling,
and
durability
which
could
result
in
personal
injury
.
It
should
be
remembered
that
when
a
trailer
is
connected,
the
trailer
tongue weight
is
part
of
the
load
being
carried
by
the
vehicle and,
there-
fore
is
included
in
the
GVW
of
the
vehicle
.
Brakes
CAUTION
CAUTIONS
To
help
avoid
personal
injury
due
to
poor
braking
action
:
"
Before
going
down
a
steep
or
long
grade, reduce
speed
and
shift
trans
.
mission
into
a
lower
gear
to
control
your
vehicle's
speed
.
Try not
to
hold
the
brake pedal
down
too
long
or
too
often
.
This
could
cause
the
brakes
to
get hot
and
not
work
as well
.
Hitches
"
When
a
trailer
hitch
is
removed,
be
sure to
have
any
mounting
holes
in
the
body
sealed
.
This
will
prevent
entry
of
exhaust
fumes,
dirt
or
water
.
(See
Engine
Exhaust
Gas
Caution
.)
NOTICE
:
Periodically
check
that
all
trailer
hitch
bolts
and
nuts
are
tight
.
BREAK-IN
SCHEDULE
See
the
new
vehicle
break-in
instructions
in
this
manual
.
Also
it
is
recommended
that
your
new
vehicle
be
driven
for
500
miles
(800
km)
before
trailer
towing
.
At
the
end
of
this
500
mile
break-in
period,
speeds
over
50
mph
(80
km/h)
and
full
throttle
starts
should
be
avoided
during
the
first
500
miles
(800
kilometres)
of
trailer
towing
.
The
same
care
should
be
observed
when
a
new
engine,
transmission,
or
final
drive
is
in-
stalled
in
your
vehicle
.
TRAILER
TOWING
TIPS
Engine
Cooling
In
case
your
engine
overheats,
see
the "In
Case
of
Emergency"
section
in this
manual
.
Long
Uphill
Grades
When
going
up
long
grades,
the
chance
of
engine overheating
can
be
reduced
by
down-
shifting
the transmission
to
a
lower
gear
and
by
reducing
speed
to
45
mph
('70
km/h)
or
below
.
Transmission
See the
method
for
checking
transmission
fluid level
in
the "Service
and
Maintenance"
section
in
this
manual
.
Parking
Vehicles
with
trailers
should
not
be parked
on
a
grade
.
However,
if
you
must,
this
is
the
way
to
do
it
1
.
Apply
regular
brakes
.
2
.
Have
someone
place
wheel
chocks
under
trailer
wheels
.
3
.
When
wheel
chocks
are
in
place,
release
regular
brakes
until
chocks absorb
load
.
4
.
Apply
parking
brake
.
5
.
Place
transmission
selector
lever
in
"PARK"
.
If
the
vehicle
is
parked on
a
grade,
don't
shift
the transmission
selector
lever
to
"PARK"
until
the
trailer
wheels
are
chocked
and
the
parking
brake
is
set
.
If
you
do,
the
weight
of
the
vehicle
and
trailer
may
exert
so
much
force
on
the
parking
pawl
in
the transmission that
it
may
be
hard
to
get
the
selector
lever
out
of
"PARK
."
When
starting after
being
parkedon
a
grade
:
1
.
Apply
regular
brakes
and
hold
until
steps
2
and
3 are
completed
.
2
.
Start
engine
in
"PARK"
.
,
3
.
Shift
into
gear
and
release
parking
brake
.
4
.
Release
regular
brakes
and
drive
until
the
chocks
are
free
.
5
.
Apply
regular
brakes
and
have
helper
remove
chocks
.
OPERATION
IN
FOREIGN
COUNTRIES
FUEL
REQUIREMENTS
Your
vehicle's
engine
can
operate
on
regular
grade
leaded
or
unleaded
gasoline
with
an
octane
rating
of
approximately
91,
research
method
.
If
you
plan
to
drive
your
vehicle outside
the
U
.S
.
and
its
jurisdictions
or
Canada,
there
is
a
possibility
the
gasolines
available
in
some
coun-
tries
will
not
meet
the
needs
of
your
engine
.
Use
of
low
octane
rated
gasolines
may
cause
engine
knocking
or
serious
engine
damage,
for
which
GMC
Truck
&
Coach
is
not
responsible
.
To
obtain
gasoline
information
for
the
coun-
tries
in
which
you
plan
to
travel,
write
to
GMC
Truck
&
Coach
Division,
Service
Department,
Pontiac,
Michigan
48053
(or
in
Canada,
write
to
General
Motors
of
Canada,
Limited,
Customer
Services
Department,
Oshawa,
Ontario
L
1
J
5Z6)
.
When
writing,
please
include
:
1
.
The
vehicle
identification
number
.
2
.
The
countries
in
which
you
plan
to
travel
.
EXTERNAL
ELECTRICAL
POWER
In
many
countries
outside
of
the
United
States
and
Canada,
the
electrical
power
supplied
may
not
be
compatible
with
your
Motorhome
elec-
trical
system
.
Serious
appliance
and
electrical
component
damage
will
result
if
incorrect
electrical
power
is
used
.
Such
damage
is
not
covered
by
the
New
Vehicle
Warranty
.
For
additional
details
on
external
power,
refer
to
LIVING
AREA
ELECTRICAL
SYSTEM
found
later
in
this
manual
.
COMPONENT
REPAIRS
Component
repairs
require
the
use
of
special
tools
and
equipment
.
Technicians
specially
trained
in
the
repair
of
Motorhomes
and
re-
placement
parts
may
not
be
readily
available
outside
of
the
U
.S
.
causing delays
and
cus-
tomer
inconvenience
.
GMC
is
not
responsible
for
any
inconvenience
which
may
result
from
these
delays
.
CB
TRANSCEIVER
Operation
of
CB
(Citizens
Band)
trans-
ceiver
may
be
prohibited
in
some
countries
.
In
others,
operation
of
this
equipment
requires
a
special
permit
besides
the
valid
station
license
.
(Permits
should
be
obtained
before
you
leave
the
United
States
.)
To
operate
a
CB
unit in
Canada,
get a
permit
from
a
regional
office
of
the
Canadian
Depart-
ment
of
Communications
.
For
information
re-
garding other
countries,
contact the
local
con-
sulates
of
the
countries
in
which
you
plan
to
travel
.
TRIP
TIPS
A
small
amount
of
preparation
prior
to
a
trip
will
save a
lot
of
time
when
traveling
.
When
loading
heavy
items
into
your
Motor-
home
try
to
store
them
as
low and
centrally
as
possible
.
This
will
aid
performance
and
handling
of
the
vehicle
.
Remember
even
though
an
item
may
not
weigh
much
individually
the
sum
weight
of
several
of
these
articles
may
be
sub-
stantial
.
CAUTION
When
transporting
luggage
or
other
cargo
in
your
Motorhome,
it
is
recom-
mended
that, all
articles
be
secured
in
place
.
This
precaution
will
help prevent
such
items
from
becoming
projectiles
in'
the
event
of
an
accident
.
The
following
emergency
equipment
is
recom-
mended,
at
minimum
"
Fire Extinguisher
"
Hydraulic
Jack
and
LugWrench
"
Spare
Tire
"
Flashlight
"
First
Aid Kit
"
Road
Emergency
Flares
"
Basic
Tool
Kit
NOTE
:
If
vehicle
is
equipped
with
(optional)
fender
skirts,
be
sure
tool
kit
includes
a
No
.
2
cross-recessed
screwdriver
and
9/16"
wrench
or
socket
to
aid
in
fender
skirt
removal,
if
neces-
sary
to
change
a
rear
tire
.
These
items
might
be
found
useful
"
Plastic
Bucketand Funnel
"
Water
Hose
and "Y"
Connection,
in
case
of
two
units
on
one
water
system
"
Level
"
Shovel
"
Spare
Automotive
Fuses
and
Bulbs
0
2"
x
4"
Chocks
or
Blocks
The
following
checks should
be
made
before
starting
on
a
trip
OUTSIDE
VEHICLE
1
.
Run
through
"Driver
Check
List"
at
the
beginning
of
this
section
.
2
.
Check
engine
oil
level
.
3
.
Check
fluid
levels
on
batteries
.
4
.
Visually
inspect
radiator
coolant
level
.
5
.
Fill
windshield
washer
reservoir
.
6
.
Check
tire
pressure,
and
inspect
tires
for
road
damage,
foreign objects
.
7
.
Check
operation
of
all
outside
lights
.
8
.
Check
that
all
exterior
vents
are
unob-
structed
.
9
.
Check
and
empty
holding
tank
.
INSIDE
VEHICLE
1
.
Check
operation
of
optional
Electro-Level
System
.
2
.
Check
gasoline
supply
.
3
.
Check
transmission
fluid
level
.
4
.
Checkpower
steering
fluid level
.
5
.
Check
operation
of
windshield
wipers
and
windshield
washers
.
6
.
Check
operation
of
brakes
.
7
.
Check
operation
of
interior
lights
.
8
.
Check
all
appliances
and
fixtures
for
proper
operation
.
9
.
Check
operation
of
motor
generator
.
10
.
Check
and
fill
living
area
water
system
.
11
.
Check
and
fill
LP
gas
tank
.
12
.
Check
Maintenance
Schedule
folder to
make
sure
all
periodic
maintenance
and
safety
checks
have been
performed
.
13
.
After the
vehicle
has
been
loaded,
check
to
see
that the
vehicle's
Gross
Vehicle
Weight,
and
front
and
rear axle
capacities
have
not
been
exceeded
.
This
check
should
be
made
fully
loaded
including
passengers
.
(Refer
to the
"IMPORTANT
INFORMATION
ON
VEHICLE
LOADING"
section
of
this
manual
for
further
information
.)
Before
leaving
any
camp-site
make
sure
all
litter
has
been
picked
up
.
When
traveling
in
winter
it is
recommended
that
the
water
tank
not be
filled
until
the
des-
tination
is
reached
.
This
will
ensure
that
the
vehicle
has
thoroughly
warmed
up
.
The
water
and
holding
tank systems
should
be
drained
be-
fore
leaving
for
home
.
Also,
at
this
time,
put
some
non-toxic,
non-flammable
anti-freeze
into
the
sink
and
shower
traps
.
Heat
tape
has
been
found
useful
in
preventing
pipe
freeze-up,
where
power
is
available
.
Some
non-toxic,
non-
flammable
anti-freeze
in
the holding
tank
will
help
keep
the
tank
contents
from
freezing
.
The
recirculating
toilet
should
be
drained
immedi-
ately
at
the
end
of
the
trip
.
DRIVING
TIPS
The Motorhome
driver
controls
are
auto-
motive-type
to
make
the
vehicle
as
comfortable
as
possible
.
The
steering
and
braking
controls
are
power
assisted
to
help
make
driving
as
effortless
For
continuing
satisfaction
keep
your
vehicle
all
GM
.
General
Motors
Parts
are
identified
by
one
of
these
trademarks
:
GM
1
V
Delco
as
possible
.
However,
it
must
be
remembered
that the
Motorhome
is
much
higher,
wider,
and
heavier
than
a family
automobile
.
Since the
Motorhome
is
9-ft
.
2-in
.
high,
with
the
roof
mounted
air
conditioner,
additional
care
is
required
to
watch
for
low
bridges
and
over-
passes
.
TREE
BRANCHES
CAN
DO
CON-
SIDERABLE
DAMAGE
TO
THE
WIND-
SHIELD
OR
ROOF
OF
THE
VEHICLE
TOO,
SO
WATCH
FOR
THEM
.
The
Motorhome
power-to-weight
ratio
is
lower
than
that
of
the
average
automobile
.
Therefore
it is
essential
to
compensate
for
less
acceleration
when
moving
into
traffic,
or
when
passing
another
vehicle
.
STARTING
AND
OPERATING
VEHICLE
ENGINE
EXHAUST
GAS
CAUTION
(CARBON
MONOXIDE
Avoid
breathing
exhaust
gases
because
they contain
.
carbon
monoxide
which
by
itself
has no
color or
odor
;
Carbon
monoxide
is
a dangerous gas
.
It
can
cause
unconsciousness
and
can be
lethal
.
If
at
any
time
you
suspect
that
exhaust
fumes
are
entering
the
Motor-
home,
have
the
cause
determined
and
corrected
as
soon
as
possible
.
If
you
must
drive
under
these
conditions,
drive
with
two
rear
windows
CLOSED
and
ALL
other
windows
fully
OPEN
.
Adjust
heating
or
cooling
system
for
maximum
ventilation
(see
below)
.
Protect-
against
carbon
monoxide
entry
into
the
vehicle
body
.
The
best
way
is
to
keep
the
engine
exhaust
system,
body
and
body
ventilation
system
properly
maintained
.
It is
recommended
that
the
exhaust
system
and
body
be
inspected
by
a
competent mechanic
:
"
Each
time
the
vehicle
is
raised
for
oil
change
.
Whenever
a
change
is
noticed
in
the
sound of
the
exhaust
system
.
Whenever
the
exhaust
system,
underbody
or
rear
of
the
vehicle
is
damaged
.
See
your
Maintenance
Schedule
folder
for
inspection
procedure
.
To allow
proper
operation
of
the
vehicle's
ventilation
system,
keep
front
inlet
grille
clear of
snow,
leaves,
or
other
obstructions
at
all
times
.
OCCUPYING
A
PARKED
VEHICLE
WITH
ENGINE
RUNNING
FOR
A
LONG
TIME
IS
NOT
RECOMMENDED
.
Do
not run
engine
in
confined
areas
such
as
garages
any
more
than
needed
to
move
vehicle
in
or
out
of
area
.
When
vehicle
is
stopped
in
an
UNCONFINED
area
with
the
engine
running
for
any
more
than
a
short
time,
adjust
heating
or
cooling
system
to force
outside
air
into
vehicle
as
follows
:
"
Set
fan
to
high speed,
upper
control
lever
to
any
position
except
"OFF
."
The two
rear
windows
-
should
be
closed
while
driving
to
help
prevent
drawing
exhaust
gases
into
the
vehicle
.
In
addition,
it is
recommended
that
roof
vent(s)
be
closed
while
driving
.
If
a
rear
window
or roof
vent
must
remain
open
for
some
reason
while
moving,
or
if
electrical
wiring
or
other cable connections
to
a
trailer
must
pass
through
the
seal
between
them
and
the
body,
these
precautions
should
be
followed
:
"
Close
all
windows
.
Adjust
heating
or
cooling
system
to
force
outside
air
into
the
vehicle
. .
.
by
setting
fan
to
high
speed
and
upper
control
lever
to
any
position
except
"OFF
."
Fully
open
air
vents
in
or
under
the
instrument
panel
.
It
is
important
that
the
engine
inside access
cover
be
properly
seated
to
prevent
possible
leakage
of
exhaust
fumes
into
the
vehicle
through
this
opening
.
See
"LIVING
-
AREA
FACILITIES
CAUTION
(CARBON
MONOXIDE)"
page
33
.
STEERING
COLUMN
CONTROLS
ANTI-THEFT
STEERING
COLUMN
LOCK
The
anti-theft
lock
on
the
right
side of
the
steering
column
has
five
positions
:
A
-
CRUISE
CONTROL
ENGAGE
BUTTON
B
-
TURNSIGNAL
LEVER
C
-
TILT-AWAY
STEERING
WHEEL
LEVER
D
-
IGNITION
SWITCH
E
-
HORN
BUTTON
F
-
HAZARD
WARNING
FLASHER
BUTTON
G
-
TRANSMISSION
SELECTOR
LEVER
Steering
Column
Controls
Anti-Theft
Steering
Column
Lock
16
ACCESSORY-You
can
use
some
electrical
accessories
when
the engine
is
not
running
.
To
engage
this
position,
push
key
in
and
turn
the top
of
the
key
towards
you
.
LOCK-Normal
parking
position
.
Locks
igni-
tion
and
prevents
normal
use
of steering
wheel
and
shift
controls
.
Key
cannot
be
re-
turned
to
"LOCK"
and
removed
until
shift
lever
is
placed
in
"PARK
."
OFF-You
can
turn the
engine
off
without
locking
steering
wheel
and
shift
controls
.
RUN-Normal
operating
position
.
START-Starts
engine
.
NOTICE
:
The
anti-theft
steering
column
lock
is
not
to
be
used
in
place
of
the
parking
brake
.
Always
set
the
parking
brake
when
leaving
the
vehicle
.
If
you
have
trouble
turning the
key
to
un-
lock the
ignition,
try
to
turn the
steering
wheel
as
hard
as
you
can
in
the
direction
the
wheels
are
turned
.
At
the
same
time,
turn
the
key
with
as
much
effort
as
you
can
apply
with your
hand
.
Do
not
try
to use a
tool of
any
kind
to
apply
more
force
on
the
lock
knob,
as
this
could break
the
knob
.
GUARD
AGAINST
THEFT
Your
new
Motorhome
has
features
to
help
prevent
theft
of
the
vehicle
itself,
its
equip-
ment
and
contents
.
But
these
anti-theft
features
DEPEND
UPON
YOU
to
work
.
THE
TIME
TO
BE
MOST
ON
GUARD
IS
WHEN
LEAVING
THE
VEHICLE
.
...
PARK
IN
A
LIGHTED
SPOT
WHEN
YOU
CAN
.
LOCK
THE
STEERING
COLUMN
AND
TAKETHE
KEYS
.
o
Turn
the
key
to
"LOCK"
and
remove
the
key
.
This
locks
the
ignition
and
BOTH
steering
and
shift
controls
.
o
If
you
must
leave
a
key
with
the
vehicle,
leave the
square
head
key
only
.
Take
the
round
head
key
with
you
.
This
will
help
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