GMC Sierra 2000 User manual

Freelockout assistance
Free dead-battery assistance
Free out-of-fuel assistance
Free flat-tire change
Emergency towing
1-800-GMC-8782
(For vehicles purchased in Canada,
call 1-800-268-6800)
that provides in an emergency:
1-800-GMC-8782
(For vehicles purchased in Canada,
call 1-800-268-6800)
Bumper-to-Bumper
3-years/36,000 miles (60 000 km)
Limited Warranty
Courtesy
Transportation
Deluxe Trip
Routing
Every
2000 Sierra
under warranty is
backed with the
following
services:
1-800-GMC-8782

i
2000 GMC Sierra
Owner's Manual
Litho in U.S.A.
Part Number X2004 A First Edition
© Copyright General Motors Corporation 1999
All Rights Reserved

ii
Table of Contents
Keys and Door Locks
Keyless Entry System
Tailgate
Automatic Transmission (If Equipped)
Manual Transmission Operation (If Equipped)
Four-Wheel Drive Operation (If Equipped)
Parking Brake
Windows
Tilt Wheel
Turn Signal/Multifunction Lever
Windshield Wipers
Cruise Control
Interior and Exterior Lamps
Mirrors
Storage Compartments
Accessory Power Outlets
OnStar® System (Option)
HomeLink® Transmitter (Option)
Instrument Panel, Warning Lights and Gages
Seats and Seat Controls
Safety Belts
Child Restraints
Section
1
Section
2
Seats and Restraint Systems
Features and Controls

iii
Section
3
Comfort Controls and Audio Systems
Section
4
Your Driving and the Road
Section
5
Table of Contents (cont'd)
Braking/Anti-lock Brakes (If Equipped)
Steering
Driving Tips for Various Road Conditions
Off-Road Driving
Recreational Vehicle Towing
Loading Your Vehicle
Towing a Trailer
Heating and Air Conditioning
Setting the Radio Clock
Radio/Cassette Player/CD Player
Radio Theft-Deterrent Feature
Hazard Warning Flashers
Jump Starting
Towing Your Vehicle
Engine Overheating
Changing a Flat Tire
If You're Stuck
Problems on the Road

iv
Table of Contents (cont'd)
Maintenance Schedule
Service and Appearance Care
Section
7
Section
6
Scheduled Maintenance
Periodic Maintenance Inspections
Recommended Fluids and Lubricants
Maintenance Records
Fuel
Checking Fluids and Lubricants
Bulb Replacement
Windshield Wiper Blade Replacement
Tires and Wheels
Appearance Care
Electrical System/Fuses and Circuit Breakers
Capacities and Specifications
Normal Maintenance Replacement Parts

v
Table of Contents (cont'd)
Customer Assistance Information
In the Index you will find an alphabetical listing of almost every subject in this manual.
You can use it to quickly find something you want to read.
Section
8
Customer Satisfaction Procedures
Customer Assistance Offices
Roadside Assistance and Courtesy Transportation
Warranty Information (See Warranty Manual)
Reporting Safety Defects on page 8-10
Service Publications
Index
Section
9
Please refer to the last page of this manual for your Service Station Guide

vi
GENERAL MOTORS, GM, the GM Emblem, GMC,
the GMC Emblem and the name SIERRA are registered
trademarks of General Motors Corporation.
This manual includes the latest information at the time
it was printed. We reserve the right to make changes
in the product after that time without further notice.
For vehicles first sold in Canada, substitute the name
“General Motors of Canada Limited” for GMC
whenever it appears in this manual.
Please keep this manual in your vehicle, so it will be
there if you ever need it when you’re on the road. If you
sell the vehicle, please leave this manual in it so the new
owner can use it.
We support voluntary
technician certification.
For Canadian Owners Who Prefer a
French Language Manual:
Aux propriétaires canadiens: Vous pouvez vous
procurer un exemplaire de ce guide en français chez
votre concessionaire ou au:
DGN Marketing Services Ltd.
1577 Meyerside Dr.
Mississauga, Ontario L5T 1B9

vii
How to Use this Manual
Many people read their owner’s manual from beginning
to end when they first receive their new vehicle. If you
do this, it will help you learn about the features and
controls for your vehicle. In this manual, you’ll find
that pictures and words work together to explain
things quickly.
Index
A good place to look for what you need is the Index in
back of the manual. It’s an alphabetical list of what’s in
the manual, and the page number where you’ll find it.
Safety Warnings and Symbols
You will find a number of safety cautions in this book.
We use a box and the word CAUTION to tell you
about things that could hurt you if you were to ignore
the warning.
CAUTION:
These mean there is something that could hurt
you or other people.
In the caution area, we tell you what the hazard is. Then
we tell you what to do to help avoid or reduce the
hazard. Please read these cautions. If you don’t, you or
others could be hurt.

viii
You will also find a circle
with a slash through it in
this book. This safety
symbol means “Don’t,”
“Don’t do this” or “Don’t
let this happen.”
Vehicle Damage Warnings
Also, in this book you will find these notices:
NOTICE:
These mean there is something that could
damage your vehicle.
In the notice area, we tell you about something that can
damage your vehicle. Many times, this damage would
not be covered by your warranty, and it could be costly.
But the notice will tell you what to do to help avoid
the damage.
When you read other manuals, you might see
CAUTION and NOTICE warnings in different colors or
in different words.
You’ll also see warning labels on your vehicle. They use
the same words, CAUTION or NOTICE.

ix
For example,
these symbols
are used on an
original battery:
CAUTION
POSSIBLE
INJURY
PROTECT
EYES BY
SHIELDING
CAUSTIC
BATTERY
ACID COULD
CAUSE
BURNS
AVOID
SPARKS OR
FLAMES
SPARK OR
FLAME
COULD
EXPLODE
BATTERY
These symbols
are important
for you and
your passengers
whenever your
vehicle is
driven:
DOOR LOCK
UNLOCK
FASTEN
SEAT
BELTS
POWER
WINDOW
AIR BAG
These symbols
have to do with
your lamps:
MASTER
LIGHTING
SWITCH
TURN
SIGNALS
PARKING
LAMPS
HAZARD
WARNING
FLASHER
DAYTIME
RUNNING
LAMPS
FOG LAMPS
These symbols
are on some of
your controls:
WINDSHIELD
WIPER
WINDSHIELD
WASHER
WINDSHIELD
DEFROSTER
REAR
WINDOW
DEFOGGER
VENTILATING
FAN
These symbols
are used on
warning and
indicator lights:
ENGINE
COOLANT
TEMP
BATTERY
CHARGING
SYSTEM
BRAKE
COOLANT
ENGINE OIL
PRESSURE
ANTI-LOCK
BRAKES
Here are some
other symbols
you may see:
FUSE
LIGHTER
HORN
SPEAKER
FUEL
Vehicle Symbols
These are some of the symbols you may find on your vehicle.

x
Model Reference
This manual covers these models:
Regular Cab Pickup
Extended Cab Pickup
Crew Cab
Chassis Cab
3500 HD Chassis Cab

For
a More
Detailed Look at
What's Under the Hood
See Section 6*
*For vehicles equipped with diesel engine, see the Diesel Engine Supplement
Service Station Guide
Engine Oil Dipstick
See Section 6*
Fuel
Use unleaded gas only,
87 Octane or higher.
See Section 6*
Cooling System
See Section 5*
Hood Release
See Section 6
Windshield Washer
Fluid
See Section 6
Tire Pressure
See Section 6
Spare Tire Pressure
See Section 5
Battery
See Section 6
Oil Viscosity
Engine Oil
See Section 6*

1- 1-1
Section 1 Seats and Restraint Systems
Here you’ll find information about the seats in your vehicle and how to use your safety belts properly. You can also
learn about some things you should not do with safety belts.
1-2 Seats and Seat Controls
1-9 Safety Belts: They’re for Everyone
1-14 Here Are Questions Many People Ask About
Safety Belts -- and the Answers
1-15 How to Wear Safety Belts Properly
1-15 Driver Position
1-22 Safety Belt Use During Pregnancy
1-23 Right Front Passenger Position
1-23 Center Passenger Position
1-26 Rear Seat Passengers
1-32 Rear Safety Belt Comfort Guides for Children
and Small Adults
1-34 Children
1-37 Child Restraints
1-52 Larger Children
1-55 Safety Belt Extender
1-55 Checking Your Restraint Systems
1-55 Replacing Restraint System Parts After
a Crash

1-2
Seats and Seat Controls
This section tells you about the seats -- how to adjust
them, and fold them up and down. It also tells you about
reclining front seatbacks and head restraints.
Manual Front Seat
CAUTION:
You can lose control of the vehicle if you try to
adjust a manual driver’s seat while the vehicle is
moving. The sudden movement could startle and
confuse you, or make you push a pedal when you
don’t want to. Adjust the driver’s seat only when
the vehicle is not moving.
If your vehicle has a manual
bucket, split bench or full
bench seat, you can adjust it
with this lever located at the
front of the seat.
Slide the lever toward the passenger’s side to unlock it.
Using your body, slide the seat to where you want it.
Then, release the lever and try to move the seat with
your body in order to make sure the seat is locked
into place.

1-3
Power Driver’s Seat (Option)
If your vehicle has a power seat on the driver’s side, you
can adjust it with these controls at the outside edge of
the seat.
You can use the round center knob to move the seat to
where you want it. To raise the seat, move the knob up.
To lower the seat, move the knob down. To move the
seat forward, move the knob toward the front of the
vehicle. To move the seat rearward, move the knob
toward the rear of the vehicle.
You can also raise and lower the front and rear of the
seat. To raise the front of the seat, move the front lever
up. To lower the front of the seat, move the front lever
down. To raise the rear of the seat, move the rear lever
up. To lower the rear of the seat, move the rear
lever down.
The switch located at the front of this control panel
is for the power lumbar adjustment, which is
explained next.

1-4
Power Lumbar Control
If you have power lumbar
adjustment, you can
increase or decrease lumbar
support in an area of the
lower seatback.
To increase support, press and hold the front of the
rocker switch. Let go of the switch when the lower
seatback reaches the desired level of support.
To decrease support, press and hold the rear of the
rocker switch. Let go of the switch when the lower
seatback reaches the desired level of support.
Reclining Seatbacks
To adjust the front seatback, move the lever rearward.
Release the lever to lock the seatback where you want it.
Move the lever again rearward and the seatback will go
to an upright position.

1-5
But don’t have a seatback reclined if your vehicle
is moving.
CAUTION:
Sitting in a reclined position when your vehicle is
in motion can be dangerous. Even if you buckle
up, your safety belts can’t do their job when
you’re reclined like this.
The shoulder belt can’t do its job because it
won’t be against your body. Instead, it will be in
front of you. In a crash you could go into it,
receiving neck or other injuries.
The lap belt can’t do its job either. In a crash the
belt could go up over your abdomen. The belt
forces would be there, not at your pelvic bones.
This could cause serious internal injuries.
For proper protection when the vehicle is in
motion, have the seatback upright. Then sit
well back in the seat and wear your safety
belt properly.

1-6
Head Restraints
Slide the head restraint up or down so that the top of the
restraint is closest to the top of your ears. This position
reduces the chance of a neck injury in a crash.
Seatback Latches
The front seatback of the base level bench seat folds
forward to let you access the rear of the cab. Your
seatback will move back and forth freely, unless you
come to a sudden stop. Then it will lock into place. If
you have a Crew Cab, your front seatback is designed
not to fold forward. Access to the rear of the cab is
available by using the rear doors.
The front seatback of the split bench seat and bucket
seats fold forward to let you access the rear of the cab.
To fold a front split bench
or bucket seatback forward,
pull this lever forward and
fold the seatback forward.
To return the seatback to the upright position, just push
the seatback rearward until it latches. After returning the
seatback to its upright position, pull the seatback
forward to make sure it is locked.
CAUTION:
If the seatback isn’t locked, it could move forward
in a sudden stop or crash. That could cause injury
to the person sitting there. Always press rearward
on the seatback to be sure it is locked.

1-7
Easy Entry Seat (Extended Cab Only)
The manual driver and passenger front bucket seats and
the manual 60/40 split bench seat of your vehicle have
an easy entry feature. This makes it easy to get in and
out of the rear seat. On vehicles with the power driver’s
seat, only the front passenger’s seat has the easy
entry feature.
To operate the seat, pull
forward on the top of this
lever and tilt the seatback
forward toward the front of
the vehicle.
When you do, the seat bottom will release. Just pull or
push the seat forward until it stops.
To return the seat to its regular position, return the
seatback to its upright position, then push the whole seat
rearward until it latches.
After returning the seat to its regular position, try to
move the seat with your body to make sure the seat is
locked into place.
CAUTION:
If any easy entry seat isn’t locked, it can move.
In a sudden stop or crash, the person sitting there
could be injured. And, even if there is no crash or
sudden stop, a driver sitting in an unlocked easy
entry seat could be startled by the sudden
movement and hit the wrong control or pedal,
causing an accident. After you’ve used it, be sure
to push rearward on any easy entry seat to be
sure it is locked.