Page 324 of 404
Interior Lamps
Dome Lamps
Reading ‘Lamps
Door Courtesy Lamps
Four-Wheel-Drive Indicator
Four-Wheel-Drive Shift Lever
Instrument Panel Compartment Lamp
Ashtray
Lamp
Sunshade Vanity Mirror
Capacities and Specifications
Engine
“VORTEC” 4300
“VORTEC” 5000
“VORTEC”
5700
“VORTEC” 7400
Type
V6
V8
V8
V8
Quantity
2
2
2
1
1
1
1
1
RPO Code
L35
L30
L3 1
L29
VIN Code
W
M
R
J
Number
21 1-2
21 1-2
194
194
194
194
194
74
Spark Plug Gap
0.060 inches ( 1.52 mm)
0.060 inches (1.52 mrn)
0.060 inches (1.52 mm)
0.060 inches (I -52 mm)
6-74
ProCarManuals.com
Page 383 of 404

For prompt assistance, please have the following information
available to give the Customer Assistance Representative:
0
0
0
0
0
Your name, address, home and business
telephone numbers
Vehicle Identification Number (This
is available
from the vehicle registration or title, or the plate at
the top left of the instrument panel and visible
through the windshield.)
Dealership name and location
Vehicle delivery date and present mileage
Nature of concern
We encourage
you to call us so we can give your inquiry
prompt attention. However,
if .you wish to write GMC
Truck, write to:
GMC Truck Customer Assistance
3 1 E. Judson Street 1607-04
Pontiac,
MI 48342-2230 Refer
to your Warranty and
Owner Assistance
Information booklet for addresses
of Canadian and GM
Overseas offices.
When contacting GMC Truck, please remember that your
concern will likely
be resolved in the dealership, using the
dealer’s facilities, equipment and personnel. That
is why we
suggest you follow Step One first if you have a concern.
Customer Assistance for Text
Telephone
(TTY) Users
To assist customers who are deaf, hard of hearing,
or speech-impaired and who use Text Telephones
(TTYs),
GMC Truck has TTY equipment available
at its Customer Assistance Center. Any TTY user
can communicate with GMC Truck by dialing:
1-800-GMC-8583. (TTY users in Canada can
dial 1-800-263-3830.)
8-3
ProCarManuals.com
Page 392 of 404

Brake Adjustment .................................. 6-36
Master Cylinder
.............................. 6-33
Replacing System Parts
........................ 6-36
System Warning Light
.......................... 2-61
Trailer
...................................... 4-55
Transmission Shift Interlock Check ............... 7-44
Brakes, Anti-Lock
............................... 4-6
Braking
........................................ 4-5
Fluid
........................................ 6-33
Parking
..................................... 2-25
PedalTravel
................................. 6-36
Wear
........................................ 6-35
Braking in Emergencies
....................... '. ..... 4-8
Break-In, New Vehicle
............................ 2-8
7-44
Bulb Replacement
.............. ............... 6-37
BTSI
Check
...................................
Canadian Roadside Assistance .... ................ 8-6
'Capacities and Specifications ...................... 6-74
Carbon Monoxide
......................... 2-30,4-41,
Cassette Deck Service
........................... 7-42
Cassette Tape Player Care
........................ 3-24
Cassette/Compact Disc Storage
.................... 2-50
Center Passenger Position
........................ 1-28
CertificatiodTire Label
.......................... 4-42
Cargo Lamp
................ .. .................. 2-43
Cassette Tape Player
......................... 3-9.3 '- 11
.Center Overhead Console
......... .............. 2-46
Certification Label
...................... : ....... 4-42 Chains. Safety
........................ : ........ 4-55
Chains Tire 6-57 .................................... .
......
Securing in a Rear Outside Seat Position ...... 1.39, 1-41
Securing
in the Center Seat Position ............... 1-44
TopStrap
.................................... 1-39
WheretoPut
................................ 1-38
Securing
in the Right Front Seat Position
.......... 1-46
Cigarette Lighter
............................... 2-52
Circuit Breakers and Fpses
....................... 6-69
Aluminum Wheels
............................ 6-64
Glass
........................................ 6-61
Inside of Your Vehicle ......................... 6-58
Instrument Panel
............................. 6-61
Outside of Your Vehicle
........................ 6-62
Special Problems
............................. 6-60
Vinyl
....................................... 6-60
Windshield and Wiper Blades
................... 6-62
Climate Control System
....................... 3-1, 3-2
Cleaner, Air
................................... 6-16
Cleaning
Fabric
....................................... 6-59
Leather ..................................... 6-61
Stains
...................................... 6-60
Tires
....................................... 6-64
Wheels
.....................................6-6 4.
9-2
ProCarManuals.com
Page 395 of 404

Gear Positions. Automatic Transmission ............. 2- 13
Gear Positions. Manual Transmission .......... 2- 17. 2- 18
GloveBox .................................... 2-46
Gross Axle Weight Rating
........................ 4-42
Gross Vehicle Weight Rating
...................... 4-42
Guide en FranCais
11 .. .................................
GVWR ....................................... 4-42
Halogen Bulbs
................................ 6-37
Hazard Warning Flashers
.......................... 5- 1
Headlamps .................................... 2-39
Bulb Replacement
....................... 6.38. 6.39
High/Low Beam Changer
...................... 2-34
OnReminder
................................ 2-39
Wiring
..................................... 6-68
Head Restraints
................................. 1-5
Hearing Impaired. Customer Assistance
.............. 8-3
Heating
........................................ 3-4
High-Beam Headlamps
.......................... 2-34
Highway Hypnosis
.............................. 4-36
Hill and Mountain Roads
......................... 4-36
Hitches. Trailer
................................. 4-54
Hood
Checking Things Under ......................... 6-6
Release
...................................... 6-7
Horn
......................................... 2-32
Hydraulic Clutch Fluid
........................... 6-23
Hydroplaning
.................................. 4-32 Ignition
Positions
............................... 2-9
Illuminated Entry
............................... 2-42
Inflation. Tire
.................................. 6-49
Inside Daymight Rearview Mirror
................. 2-43
Inspections
.................................... 7-46
Brakesystem
................................ 7-47
Drive Axle
.................................. 7-47
Exhaust Systems
............................. 7-46
Radiator and Heater Hose
...................... 7-46
Steering
.................................... 7-46
Suspension
.................................. 7-46
Throttle Linkage
.............................. 7-46
Transfer Case (Four-wheel Drive)
............... 7-47
Instrument Panel
............................... 2-54
Cleaning
.................................... 6-61
Cluster
..................................... 2-56
FuseBlock
.................................. 6-69
Intensity Control
............................. 2-42
Interior Lamps
................................. 2-42
.................................... J ack. Tire 5-22
Jump Starting
................................... 5-2
Key
Lock Cylinders Service ..................... 7-43
Key Release Button ............................. 2- IO
Keyless Entry System ............................ 2-5
Keys .......................................... 2-1
9'
ProCarManuals.com