GMC 2013 GMC Sierra Denali User manual

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
2013 GMC Sierra Denali Owner Manual M
In Brief ........................ 1-1
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information . . . . . . . . 1-4
Vehicle Features . . . . . . . . . . . . . 1-15
Performance and
Maintenance . . . . . . . . . . . . . . . . 1-21
Keys, Doors, and
Windows .................... 2-1
Keys and Locks . . . . . . . . . . . . . . . 2-1
Doors..........................2-8
Vehicle Security. . . . . . . . . . . . . . . . 2-9
Exterior Mirrors . . . . . . . . . . . . . . . 2-12
Interior Mirrors . . . . . . . . . . . . . . . . 2-14
Windows . . . . . . . . . . . . . . . . . . . . . 2-14
Roof..........................2-17
Seats and Restraints . . . . . . . . . 3-1
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats . . . . . . . . . . . . . . . . . . . . 3-3
Rear Seats . . . . . . . . . . . . . . . . . . . . 3-8
Safety Belts . . . . . . . . . . . . . . . . . . . . 3-8
Airbag System . . . . . . . . . . . . . . . . 3-17
Child Restraints . . . . . . . . . . . . . . 3-31
Storage . . . . . . . . . . . . . . . . . . . . . . . 4-1
Storage Compartments . . . . . . . . 4-1
Instruments and Controls . . . . 5-1
Controls . . . . . . . . . . . . . . . . . . . . . . . 5-2
Warning Lights, Gauges, and
Indicators . . . . . . . . . . . . . . . . . . . 5-10
Information Displays . . . . . . . . . . 5-27
Vehicle Messages . . . . . . . . . . . . 5-34
Vehicle Personalization . . . . . . . 5-43
Universal Remote System . . . . 5-51
Lighting . . . . . . . . . . . . . . . . . . . . . . . 6-1
Exterior Lighting . . . . . . . . . . . . . . . 6-1
Interior Lighting . . . . . . . . . . . . . . . . 6-6
Lighting Features . . . . . . . . . . . . . . 6-8
Infotainment System . . . . . . . . . 7-1
Introduction . . . . . . . . . . . . . . . . . . . . 7-1
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 7-10
Audio Players . . . . . . . . . . . . . . . . 7-17
Rear Seat Infotainment . . . . . . . 7-38
Phone........................7-49
Trademarks and License
Agreements . . . . . . . . . . . . . . . . . 7-57
Climate Controls . . . . . . . . . . . . . 8-1
Climate Control Systems . . . . . . 8-1
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-6
Driving and Operating . . . . . . . . 9-1
Driving Information . . . . . . . . . . . . . 9-2
Starting and Operating . . . . . . . 9-23
Engine Exhaust . . . . . . . . . . . . . . 9-30
Automatic Transmission . . . . . . 9-31
Drive Systems . . . . . . . . . . . . . . . . 9-35
Brakes . . . . . . . . . . . . . . . . . . . . . . . 9-41
Ride Control Systems . . . . . . . . 9-43
Cruise Control . . . . . . . . . . . . . . . . 9-46
Object Detection Systems . . . . 9-48
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 9-55
Towing . . . . . . . . . . . . . . . . . . . . . . . 9-60
Conversions and Add-Ons . . . 9-81
Vehicle Care . . . . . . . . . . . . . . . . . 10-1
General Information . . . . . . . . . . 10-2
Vehicle Checks . . . . . . . . . . . . . . . 10-3
Headlamp Aiming . . . . . . . . . . . 10-29
Bulb Replacement . . . . . . . . . . 10-30
Electrical System . . . . . . . . . . . . 10-33

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
2013 GMC Sierra Denali Owner Manual M
Wheels and Tires . . . . . . . . . . . 10-41
Jump Starting . . . . . . . . . . . . . . . 10-75
Towing . . . . . . . . . . . . . . . . . . . . . . 10-79
Appearance Care . . . . . . . . . . . 10-84
Service and Maintenance . . . 11-1
General Information . . . . . . . . . . 11-1
Maintenance Schedule . . . . . . . 11-3
Special Application
Services . . . . . . . . . . . . . . . . . . . . 11-8
Additional Maintenance
and Care . . . . . . . . . . . . . . . . . . . . 11-9
Recommended Fluids,
Lubricants, and Parts . . . . . . 11-12
Maintenance Records . . . . . . . 11-15
Technical Data . . . . . . . . . . . . . . . 12-1
Vehicle Identification . . . . . . . . . 12-1
Vehicle Data . . . . . . . . . . . . . . . . . . 12-2
Customer Information . . . . . . . 13-1
Customer Information . . . . . . . . 13-2
Reporting Safety Defects . . . . 13-18
Vehicle Data Recording and
Privacy. . . . . . . . . . . . . . . . . . . . 13-19
OnStar . . . . . . . . . . . . . . . . . . . . . . . 14-1
OnStar Overview. . . . . . . . . . . . . 14-1
OnStar Services . . . . . . . . . . . . . . 14-2
OnStar Additional
Information . . . . . . . . . . . . . . . . . . 14-5
Index ..................... i-1

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
Introduction iii
The names, logos, emblems,
slogans, vehicle model names, and
vehicle body designs appearing in
this manual including, but not limited
to, GM, the GM logo, GMC, the
GMC Truck Emblem, SIERRA, and
DENALI are trademarks and/or
service marks of General Motors
LLC, its subsidiaries, affiliates,
or licensors.
This manual describes features that
may or may not be on your specific
vehicle either because they are
options that you did not purchase or
due to changes subsequent to the
printing of this owner manual.
Please refer to the purchase
documentation relating to your
specific vehicle to confirm each of
the features found on your vehicle.
For vehicles first sold in Canada,
substitute the name “General
Motors of Canada Limited”for GMC
Division wherever it appears in this
manual.
If the vehicle has the Duramax
®
Diesel engine, see the Duramax
diesel supplement for additional and
specific information on this engine.
Keep this manual in the vehicle for
quick reference.
Canadian Vehicle Owners
Propriétaires Canadiens
A French language copy of this
manual can be obtained from your
dealer or from:
On peut obtenir un exemplaire de
ce guide en français auprès du
concessionnaire ou à l'adresse
suivante:
Helm, Incorporated
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
Using this Manual
To quickly locate information about
the vehicle, use the Index in the
back of the manual. It is an
alphabetical list of what is in the
manual and the page number where
it can be found.
Litho in U.S.A.
Part No. 22974888 B Second Printing ©2012 General Motors LLC. All Rights Reserved.

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
iv Introduction
Danger, Warnings, and
Cautions
Warning messages found on vehicle
labels and in this manual describe
hazards and what to do to avoid or
reduce them.
Danger indicates a hazard with a
high level of risk which will result in
serious injury or death.
Warning or Caution indicates a
hazard that could result in injury or
death.
{WARNING
These mean there is something
that could hurt you or other
people.
Notice: This means there is
something that could result in
property or vehicle damage. This
would not be covered by the
vehicle's warranty.
A circle with a slash through it is a
safety symbol which means “Do
Not,” “Do not do this,”or “Do not let
this happen.”
Symbols
The vehicle has components and
labels that use symbols instead of
text. Symbols are shown along with
the text describing the operation or
information relating to a specific
component, control, message,
gauge, or indicator.
M:This symbol is shown when
you need to see your owner manual
for additional instructions or
information.
*:This symbol is shown when
you need to see a service manual
for additional instructions or
information.
Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. For more
information on the symbol, refer to
the Index.
0:Adjustable Pedals
9:Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
%:Audio Steering Wheel Controls
or OnStar
®
$:Brake System Warning Light
":Charging System
I:Cruise Control
B:Engine Coolant Temperature
O:Exterior Lamps
#:Fog Lamps
.:Fuel Gauge
+:Fuses
3:Headlamp High/Low-Beam
Changer

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
Introduction v
(:Heated Steering Wheel
j:LATCH System Child
Restraints
*:Malfunction Indicator Lamp
::Oil Pressure
g:Outside Power Foldaway
Mirrors
O:Power
/:Remote Vehicle Start
>:Safety Belt Reminders
7:Tire Pressure Monitor
_:Tow/Haul Mode
d:Traction Control/StabiliTrak
®
M:Windshield Washer Fluid

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
vi Introduction
2NOTES

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
In Brief 1-1
In Brief
Instrument Panel
Instrument Panel . . . . . . . . . . . . . . 1-2
Initial Drive Information
Initial Drive Information . . . . . . . . 1-4
Remote Keyless Entry (RKE)
System . . . . . . . . . . . . . . . . . . . . . . 1-4
Remote Vehicle Start . . . . . . . . . 1-4
Door Locks . . . . . . . . . . . . . . . . . . . 1-5
Windows . . . . . . . . . . . . . . . . . . . . . . 1-5
Seat Adjustment . . . . . . . . . . . . . . 1-6
Memory Features . . . . . . . . . . . . . 1-7
Heated and Ventilated
Seats . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Head Restraint Adjustment . . . . 1-7
Safety Belts . . . . . . . . . . . . . . . . . . . 1-8
Passenger Sensing System . . . 1-8
Mirror Adjustment . . . . . . . . . . . . . 1-9
Steering Wheel
Adjustment . . . . . . . . . . . . . . . . . 1-10
Throttle and Brake Pedal
Adjustment . . . . . . . . . . . . . . . . . 1-10
Interior Lighting . . . . . . . . . . . . . . 1-10
Exterior Lighting . . . . . . . . . . . . . 1-11
Windshield Wiper/Washer . . . . 1-12
Climate Controls . . . . . . . . . . . . . 1-13
Transmission . . . . . . . . . . . . . . . . 1-13
Four-Wheel Drive . . . . . . . . . . . . 1-14
Vehicle Features
Radio(s) . . . . . . . . . . . . . . . . . . . . . 1-15
Satellite Radio . . . . . . . . . . . . . . . 1-16
Portable Audio Devices . . . . . . 1-16
Bluetooth
®
................... 1-17
Steering Wheel Controls . . . . . 1-17
Cruise Control . . . . . . . . . . . . . . . 1-18
Navigation System . . . . . . . . . . . 1-18
Driver Information
Center (DIC) . . . . . . . . . . . . . . . 1-18
Rear Vision
Camera (RVC) . . . . . . . . . . . . . 1-19
Ultrasonic Parking Assist . . . . 1-19
Power Outlets . . . . . . . . . . . . . . . 1-20
Universal Remote System . . . 1-20
Sunroof . . . . . . . . . . . . . . . . . . . . . . 1-20
Performance and Maintenance
StabiliTrak
®
System . . . . . . . . . 1-21
Tire Pressure Monitor . . . . . . . . 1-22
Engine Oil Life System . . . . . . 1-22
Fuel E85 (85% Ethanol) . . . . . 1-23
Driving for Better Fuel
Economy . . . . . . . . . . . . . . . . . . . 1-23
Roadside Assistance
Program .................... 1-23
OnStar
®
..................... 1-23

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
1-2 In Brief
Instrument Panel
United States Version Shown; Canada and Mexico Similar

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
In Brief 1-3
A. Air Vents on page 8‑6.
B. Turn and Lane-Change Signals
on page 6‑5.
Windshield Wiper/Washer on
page 5‑5.
C. Instrument Cluster on
page 5‑12.
D. Hazard Warning Flashers on
page 6‑5.
E. Shift Lever. See Automatic
Transmission on page 9‑31.
F. Tow/Haul Mode on page 9‑34 (If
Equipped).
G. Driver Information Center (DIC)
Buttons. See Driver Information
Center (DIC) on page 5‑27.
H. Infotainment on page 7‑1.
I. Exterior Lamp Controls on
page 6‑1.
J. Integrated Trailer Brake
Controller (If Equipped). See
Trailer Towing on page 9‑63.
K. Dome Lamps on page 6‑7.
L. Data Link Connector (DLC) (Out
of View). See Malfunction
Indicator Lamp on page 5‑19.
M. Cruise Control on page 9‑46.
Heated Steering Wheel Button
(If Equipped). See Heated
Steering Wheel on page 5‑4.
N. Hood Release. See Hood on
page 10‑4.
O. Parking Brake on page 9‑42.
P. Steering Wheel Adjustment on
page 5‑2.
Q. Horn on page 5‑5.
R. Steering Wheel Controls on
page 5‑2.
S. Dual Automatic Climate Control
System on page 8‑1.
T. Power Outlets on page 5‑9.
Cigarette Lighter (If Equipped).
See Ashtrays on page 5‑10 and
Cigarette Lighter on page 5‑10.
U. StabiliTrak
®
System on
page 9‑43.
Pedal Adjust Control. See
Adjustable Throttle and Brake
Pedal on page 9‑23.
Ultrasonic Parking Assist on
page 9‑48 (If Equipped).
Exhaust Brake (If Equipped).
See “Brakes”in the Duramax
diesel supplement.
V. Passenger Airbag Off Control (If
Equipped). See Passenger
Sensing System on page 3‑25.

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
1-4 In Brief
Initial Drive
Information
This section provides a brief
overview about some of the
important features that may or may
not be on your specific vehicle.
For more detailed information, refer
to each of the features which can be
found later in this owner manual.
Remote Keyless Entry
(RKE) System
The RKE transmitter is used to
remotely lock and unlock the doors
from up to 60 m (195 ft) away from
the vehicle.
K:Press to unlock the driver door.
Press Kagain within three seconds
to unlock all remaining doors.
Q:Press to lock all doors. Lock
and unlock feedback can be
personalized. See Vehicle
Personalization on page 5‑43.
L:Press and release to locate
the vehicle. Press Land hold for
more than two seconds to sound the
panic alarm. Press Lagain to
cancel the panic alarm.
See Keys on page 2‑1and Remote
Keyless Entry (RKE) System
Operation on page 2‑2.
Remote Vehicle Start
With this feature the engine can be
started from outside of the vehicle.
Starting the Vehicle
1. Aim the RKE transmitter at the
vehicle.
2. Press and release Q.
3. Immediately after completing
Step 2, press and hold /for at
least two seconds or until the
turn signal lamps flash.
When the vehicle starts, the parking
lamps will turn on and remain on as
long as the engine is running. The
doors will be locked and the climate
control system may come on.
The engine will continue to run for
10 minutes. Repeat the steps for a
10-minute time extension. Remote
start can be extended only once.

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
In Brief 1-5
Canceling a Remote Start
To cancel a remote start, do one of
the following:
.Aim the RKE transmitter at the
vehicle and press and hold /
until the parking lamps turn off.
.Turn on the hazard warning
flashers.
.Turn the vehicle on and then
back off.
See Remote Vehicle Start on
page 2‑4.
Door Locks
There are several ways to lock and
unlock the vehicle.
From outside, use the Remote
Keyless Entry (RKE) transmitter or
the key in the driver door.
From inside, use the power door
locks or the manual door locks. To
lock or unlock the door with the
manual locks, push down or pull up
on the manual lock knob.
Power Door Locks
Press Qor Kon the RKE
transmitter. See Remote Keyless
Entry (RKE) System Operation on
page 2‑2.
Q:Press to lock the doors.
K:Press to unlock the doors.
See Door Locks on page 2‑6.
Windows
The driver door has switches that
control all windows; the passenger
door switch only controls that
window. The power windows work
when the ignition is in ON/RUN or
ACC/ACCESSORY, or in Retained
Accessory Power (RAP). See
Retained Accessory Power (RAP)
on page 9‑27.
Press the switch to lower the
window. Pull the switch up to raise
it. See Windows on page 2‑14 and
Power Windows on page 2‑15.

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
1-6 In Brief
Seat Adjustment
To adjust the seat:
.Move the seat forward or
rearward by sliding the control
forward or rearward.
.Raise or lower the front or rear
part of the seat cushion by
moving the front or rear of the
control up or down.
.Raise or lower the entire seat by
moving the entire control up
or down.
See Power Seat Adjustment on
page 3‑3.
Lumbar Adjustment
To adjust the lumbar support:
.Press and hold the front or rear
of the control to increase or
decrease lumbar support.
.Press and hold the top or bottom
of the control to raise or lower
the height of the support.
See Lumbar Adjustment on
page 3‑4.
Reclining Seatbacks
To adjust the seatback:
.Tilt the top of the control
rearward to recline.
.Tilt the top of the control forward
to raise.
See Reclining Seatbacks on
page 3‑4.

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
In Brief 1-7
Memory Features
The controls on the driver door are
used to program and recall memory
settings for the driver seat, outside
mirrors, and the adjustable throttle
and brake pedals, if available.
See Memory Seats on page 3‑5and
Vehicle Personalization on
page 5‑43.
Heated and Ventilated
Seats
The buttons are on the front doors.
H:Press to cool the seat.
I:Press to heat the
seatback only.
J:Press to heat the seat and
seatback.
Press the button once for the
highest setting. With each press of
the button, the seat will change to
the next lower setting, and then to
the off setting. The lights indicate
three for the highest setting and one
for the lowest.
See Heated and Ventilated Front
Seats on page 3‑6.
Head Restraint
Adjustment
Do not drive until the head restraints
for all occupants are installed and
adjusted properly.
To achieve a comfortable seating
position, change the seatback
recline angle as little as necessary
while keeping the seat and the head
restraint height in the proper
position.
See Head Restraints on page 3‑2
and Power Seat Adjustment on
page 3‑3.

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
1-8 In Brief
Safety Belts
Refer to the following sections for
important information on how to use
safety belts properly.
.Safety Belts on page 3‑8.
.How to Wear Safety Belts
Properly on page 3‑10.
.Lap-Shoulder Belt on page 3‑11.
.Lower Anchors and Tethers for
Children (LATCH System) on
page 3‑39.
Passenger Sensing
System
The passenger sensing system,
if equipped, turns off the front
outboard passenger frontal airbag
under certain conditions. No other
airbag is affected by the passenger
sensing system.
If the vehicle has one of the
indicators pictured in the following
illustrations, then the vehicle has a
passenger sensing system for the
right front passenger position.
The passenger airbag status
indicator, if equipped, will be visible
on the overhead console when the
vehicle is started.
United States
Canada and Mexico
See Passenger Sensing System on
page 3‑25 for important information.

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
In Brief 1-9
Mirror Adjustment
Exterior Mirrors
Mirror Adjustment
1. Press (A) or (B) to select the
driver or passenger side mirror.
2. Press the arrows on the control
pad to move the mirror up,
down, right, or left.
3. Press the opposite side to get
the control pad to a neutral
position.
Power Folding Mirrors
To fold the mirrors:
1. Press (C) to fold the mirrors out
to the driving position.
2. Press (D) to fold the mirrors in to
the folded position.
See Power Mirrors on page 2‑12.
Automatic Dimming Mirror
The driver outside mirror
automatically dims for the glare of
the headlamps from behind.
Heated Mirrors
The heated outside rearview mirrors
turn on when the rear window
defogger is on.
Press 1to heat the mirrors.
See “Rear Window Defogger”under
Dual Automatic Climate Control
System on page 8‑1.
Park Tilt Mirrors
If the vehicle has the memory
package, the exterior mirrors tilt to a
preselected position when the
vehicle is in R (Reverse). This
feature lets the driver view the curb
when parallel parking. The mirrors
return to the original position when
the vehicle is shifted out of
R (Reverse), or the ignition is turned
off or to OFF/LOCK.
This feature can be programmed
through the Driver Information
Center (DIC). See Vehicle
Personalization on page 5‑43.
Interior Mirror
Adjustment
Hold the rearview mirror in the
center and move it to view the area
behind the vehicle.
Automatic Dimming Rearview
Mirror
The mirror will automatically reduce
the glare from the headlamps from
behind. The dimming feature comes
on each time the vehicle is started.
See Automatic Dimming Rearview
Mirror on page 2‑14.

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
1-10 In Brief
Steering Wheel
Adjustment
To adjust the steering wheel:
1. Hold the steering wheel and pull
the lever.
2. Move the steering wheel up
or down.
3. Release the lever to lock the
wheel in place.
Do not adjust the steering wheel
while driving.
Throttle and Brake Pedal
Adjustment
On vehicles with this feature, you
can change the position of the
throttle and brake pedals.
The control used to adjust the
pedals is located on the instrument
panel below the climate control
system.
Press the bottom of the control to
move the pedals closer. Press the
top of the control to move the
pedals away.
See Adjustable Throttle and Brake
Pedal on page 9‑23.
Interior Lighting
Dome Lamps
The dome lamps are located in the
overhead console.
They come on when any door is
opened and turn off after all the
doors are closed.
Turn the instrument panel
brightness knob located below the
dome lamp override button,
clockwise to the farthest position to
manually turn on the dome lamps.
The dome lamps remain on until the
knob is turned counterclockwise.
Dome Lamp Override
The dome lamp override button is
located next to the exterior lamps
control.

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
In Brief 1-11
k:Press the button in and the
dome lamps remain off when a door
is opened. Press the button again to
return it to the extended position so
that the dome lamps come on when
a door is opened.
Reading Lamps
For vehicles with reading lamps in
the overhead console, press the
button located next to the lamp to
turn it on or off.
The vehicle may also have reading
lamps in other locations. The lamps
are fixed and cannot be adjusted.
For more information about interior
lamps, see:
.Dome Lamps on page 6‑7.
.Reading Lamps on page 6‑7.
.Instrument Panel Illumination
Control on page 6‑6.
Exterior Lighting
The exterior lamp control is on the
instrument panel to the left of the
steering wheel.
There are four positions.
O:Turns off the automatic
headlamps and Daytime Running
Lamps (DRL). Turn the headlamp
control to the off position again to
turn the automatic headlamps or
DRL back on.
For vehicles first sold in Canada,
the off position will only work when
the vehicle is shifted into P (Park).
AUTO: Automatically turns on the
headlamps, parking lamps,
taillamps, instrument panel lights,
roof marker lamps (if equipped), and
license plate lamps.
;:Turns on the parking lamps,
taillamps, instrument panel lights,
roof marker lamps (if equipped), and
license plate lamps.
5:Turns on the headlamps,
parking lamps, taillamps, instrument
panel lights, roof marker lamps (if
equipped), and license plate lamps.
See:
.Exterior Lamp Controls on
page 6‑1
.Daytime Running Lamps (DRL)
on page 6‑3
.Fog Lamps on page 6‑6

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
1-12 In Brief
Windshield Wiper/Washer
The front wiper control is located on
the turn and lane-change lever.
The windshield wipers are controlled
by turning the band with zon it.
8:For a single wipe, turn to 8,
then release. For several wipes,
hold the band on 8longer.
9:Turns the windshield
wipers off.
6:Turn the band up for more
frequent wipes or down for less
frequent wipes.
w:Slow wipes.
1:Fast wipes.
L:Push the paddle at the top of
the lever to spray washer fluid on
the windshield.
See Windshield Wiper/Washer on
page 5‑5.

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
In Brief 1-13
Climate Controls
The heating, cooling, and ventilation in the vehicle can be controlled with
this system.
Dual Automatic Climate Control System
A. Driver and Passenger
Temperature Controls
B. Fan Control
C. AUTO (Automatic Operation)
D. Defrost
E. Recirculation
F. Outside Air
G. Air Delivery Mode Control
H. Display
I. Power Button
J. Rear Window Defogger
K. Air Conditioning
L. PASS (Passenger)
See Dual Automatic Climate Control
System on page 8‑1.
Transmission
Range Selection Mode
The Range Selection Mode button
is located on the shift lever.
To enable Range Selection:
1. Move the column shift lever to
the M (Manual) position. The
current range will appear next to
the M. This is the highest
possible range with all lower
gears accessible. As an
example, when 5 (Fifth) gear is
selected, 1 (First) through
5 (Fifth) gears are available.

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GMC Sierra Denali Owner Manual - 2013 - 2nd Edition - 8/27/12
1-14 In Brief
2. Press the plus/minus buttons to
select the range of gears for
current driving conditions. See
Manual Mode on page 9‑34.
While using Range Selection Mode,
cruise control and the Tow/Haul
mode can be used.
Grade Braking is not available when
Range Selection Mode is active.
See Tow/Haul Mode on page 9‑34.
Four-Wheel Drive
If the vehicle has Four-Wheel Drive,
you can send the engine's driving
power to all four wheels for extra
traction.
Electronic Transfer Case
The transfer case knob is located
next to the steering column.
You can choose among four driving
settings:
2m(Two-Wheel Drive High): This
setting is used for driving in most
street and highway situations.
4m(Four-Wheel Drive High): Use
the Four-Wheel Drive High position
when extra traction is needed, such
as on snowy or icy roads or in most
off-road situations.
4n(Four-Wheel Drive Low): This
setting sends maximum power to all
four wheels. You might choose
Four-Wheel Drive Low while driving
off-road in deep sand, deep mud,
deep snow, and while climbing or
descending steep hills.
N (Neutral): Shift the vehicle's
transfer case to N (Neutral) only
when towing the vehicle. See
Recreational Vehicle Towing on
page 10‑80 or Towing the Vehicle
on page 10‑79 for more information.
See Four-Wheel Drive on
page 9‑35.