
1994 SERVICE PUBLICATIONS
ORDERING INFORMATION
You can get manuals that tell how to operate and service your vehicle.
To order them, fill out the order form on the next page and send it to
the address below.
GMC Truck Service Publications
Post Office Box 436006
Pontiac, MI 48343
If you have questions or would like to order using your credit card, call
us TOLL FREE at 1-800-627-5699.
From outside the Continental United States, please call 1-31 3-455-8016
GLOVE BOX LITERATURE FOR YOUR SIERRA
Manual Form Number Price
Owner’s Manual X-9404 $1 0.00
Warranty Manual X-941 7 $ 3.00
Vehicle Storage Manual x-01
01 -
You can also order the Glove Box Literature in a vinyl portfolio which
includes all
of these publications. Ask for form number 15958964-it
costs $1
5.00.
SERVICE MANUALS FOR ALL LIGHT DUTY TRUCKS
Model Kit Number Price*
1994 C/K Models NATP-9431 K $1 20.00
1994 G Van NATP-9457K $1 20.00
1994 P3 & P/G Models NATP-9432K $1 20.00
1994 Safari NATP-9430K $1 20.00
1994 Sm Models NATP-9429K $1 20.00
Includes: Service Manual, Unit Repair Manual, Driveability, Emissions,
and Electrical Diagnosis Manual.
PRODUm SERVICE PUBLICATIONS
Form Number
PSP I 91
PSP
I 92
PSP
I 93
Description
1991 Model Year Index
1992 Model Year Index
1993 Model Year Index
For 1994 Call 1-800-782-4356
1994 Model Year Index
1994 Model Year Product Service
Publication Subscription
Above Subscription With Binder
Binder Only PSP
I 94
PSP 94
PSP 948
PSP
B
Price
Free
Free
Free
Free
TBD
TBD TBD
Prices subject to change without notice.
ProCarManuals.com

Index
A
Aircleaner ..................................................... 6-29
Air Conditioning
............................................ 3.5. 6.S0
Aircontrols
.................................................. 3-7
Low Refrigerant Change Detection
................................ 3-8
Refrigerant Capacity
...................................... 3.97, 6.94
SystemControls
............................................... 3-6
Antenna, FixedMast
............................................. 3-18
Anti-Lock Brakes (See “Brakes”)
Appearancecare
................................................ 6-80
Materials Chart ............................................... 6-87
Arbitration Program
............................................... 8-3
Audiosystems
................................................... 3-9
AMRadio ................................................... 3-10
AM-FM Stereo Audio System with Cassette Deck ................... 3-12
AM-FM Stereo Audio System with Cassette Deck and Equalizer ........ 3-16
Cassette Deck
................................................ 3-14
Cassette Tape Player Care
....................................... 3-30
Automatic Transmission
.......................................... 2-21
Fluid
....................................................... 6-30
Axle Front
....................................................... 6-37
Front Locking Feature
.......................................... 2-36
Rear
........................................................ 6-39
RearLocking
.................................................. 6-39
Battery
........................................................ 6-52
Belts (See “Safety Belts”)
Better Business Bureau Mediation
.................................... 8-3
Blizzard ....................................................... 4-35
Brakes
Anti-Lock
.................................................... 4-6
Fluid
....................................................... 6-47
Leakcheck
.................................................. 6-47
Master Cylinder
.............................................. 6-46
Parking
..................................................... 2-28
PedalTravel ................................................. 6-48
Replacing Parts
............................................... 6-49
System Warning Light
......................................... 2-70
Trailer
...................................................... 441
In Emergencies ................................................ 4-7
Break-In, New Vehicle
........................................... 2- IO
Bulb Replacement ............................................... 6-97
Replacement Chart
............................................ 6-97
Braking
......................................................... 4-5
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C
Camper Wiring Harness ........................................... 2-83
Capacities/Specification Charts ..................................... 6-91
CarbonMonoxide
............................................... 2-33
CargoLamp
.................................................... 2-52
Cassette Tape Player (see “Audio Systems”
)
Catalyticconverter .............................................. 6-64
Certificationire Label
........................................... 6-65
Changing a Flat Tire
......................................... 5-26, 5-32
Chemical Paint Spotting
........................................... 6-87
Child Restraints (See “Safety Belts”)
CHMSLFeedWire
.............................................. 2-82
Cigarette LightedAshtrays
..... ................................... 2-52
Circuit Breakers (See “Fuses”)
Cleaning
Finishcare
.................................................. 6-85
Glass
....................................................... 6-84
Insideofvehicle
.............................................. 6-81
Instrumentpanel. Top
.......................................... 6-83
Outsideofvehicle
............................................. 6-84
Special Problems
.............................................. 6-82
VinylorLeather
.............................................. 6-83
Wheels and Tires
.............................................. 6-86
Windshield
.................................................. 6-84
Clock
......................................................... 3-18
AM-FM Stereo Audio System with Cassette Deck
................... 3-11
AM-FM Stereo Audio System with Cassette Deck and Equalizer
... 3-14. 3-18
Conversion to Chassis Cab
........................................ 6-70
Coolant (See “Engine”)
Cooling System Capacity
.......................................... 5-17
Crankcase Capacity
.............................................. 6-93
Increasespeed
............................................... 2-46
CruiseControl
.................................................. 2-44
EraseSpeedMemory .......................................... 2-48
OnHills
..................................................... 2-48
Passing
..................................................... 247
Reducespeed
................................................ 2-47
Resume
..................................................... 2-46
Set
......................................................... 2-45
ToGetOutOf
................................................ 2-48
Customer Assistance for the Hearing or Speech Impaired
................. 8-3
Customer Satisfaction Procedure
..................................... 8-2
Daytime Running Lights (Canada Only)
......................... 2.50, 2.75
Indicator Light
.......................................... 2.50. 2.75
Diesel Fuel (See “Fuel”)
DomeLights
.................................................... 2-51
Doors
.......................................................... 2-7
Locks ........................................................ 2-5
Driving Across an Incline
............................................. 4-21
After Off-Road Driving
........................................ 4-22
2
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F
FanNoise ...................................................... 5-25
Filter Replacement Chart
.......................................... 6-94
Finish Care
........................................................ 6-85
Damage
..................................................... 6-86
Automatic Transmission
........................................ 6-30
Brake
....................................................... 647
Coolant
..................................................... 5-17
Capacities .............................................. 6-92, 6-93
FrontAxle
................................................... 6-37
Hydraulicclutch
.............................................. 6-35
LeakCheck
............................................. 6-47. 6-51
ManualTransmission .......................................... 6-33
Power Steering
............................................... 6-43
Radiator
..................................................... 5-17
Rear Axle ................................................... 6-39
Recommended Fluids
.......................................... 7-25
Transfer Case
................................................ 6-36
Windshield Washer
............................................ 6-45
Four-WheelDrive ............................................... 244
Transfer Case
........................................... 2-35, 6-36
Front Axle ................................................... 6-37
Fuel (Diesel Engines)
............................................. 6-11
Cold Weather Operation ......................................... 6-6
Filter Replacement ............................................ 6-11
Fuel Requirements ............................................. 6-4
Gage
....................................................... 2-78
RunningOutOf
.............................................. 6-10
Tankcapacity ................................................ 6-93
WaterinFuel
................................................. 2-71
Fuel (Gasoline Engines)
............................................ 6-4
FillingYourTank
............................................. 6-13
Foreign Countries
............................................. 6-12
Gage
....................................................... 2-78
Gasolines for Cleaner Air
........................................ 6-5
Tankcapacity
................................................ 6-93
Fuses and Circuit Breakers
................................... 6-64. 6-96
FuseBlock ............................................. 6-63, 6-95
Headlights
.............................................. 6-62-6-97
Trailer Wiring Harness
......................................... 6-62
Windshield Wipers
....................................... 6-45, 6-96
Fluid
Power Windows and Other
Power Options ......................... 6-62
Gages ......................................................... 2-78
Coolant Temperature Gage
...................................... 2-79
FuelGage
................................................... 2-78
Odometer
................................................... 2-68
Oil Pressure Gage ............................................. 2-80
Speedometer
................................................. 2-68
4
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Gages (continued) Tachometer
.................................................. 2-69
Voltmeter
.................................................... 2-82
Trip Odometer
................................................ 2-68
HalogenBulbs .................................................. 6-54
Hazard Warning Flashers
........................................... 5-2
Head Restraints
.................................................. 1-5
Headlights
........................................... 2-49,6-53, 6-62
Composite
................................................... 6-54
Halogen
..................................................... 6-54
High Beam Indicator Light
...................................... 2-76
SealedBeam
................................................. 6-53
Heating System (with
A/C) ......................................... 3-6
Rear Window Defogger
......................................... 3-8
Heating System (without A/C)
....................................... 3-5
FanKnob ..................................................... 3-5
FunctionLever
................................................ 3-5
Rear Window Defogger
......................................... 3-8
Hi~h-LowBeam
.............................................. 241
System Controls ............................................... 3-6
Temperature Lever
............................................. 3-5
Highway Hypnosis ............................................... 4-30
Hitches ........................................................ 4-40
Hood
CheclungUnder
.............................................. 6-15
LatchesandHinge ............................................ 6-51
Horn
.......................................................... 2-39
Hydraulicclutch
................................................ 6-34
Grease Fitting
................................................ 6-35
Hydroplaning
................................................... 4-27
I
If You’re Stuck in Sand. Mud. Ice. or Snow ........................... 5-40
Ignitionswitch .................................................. 2-11
Inflation-Tire Pressure ............................................ 6-71
Instrument Panel ................................................ 2-67
Cluster
...................................................... 2-67
Tachometer Cluster
............................................ 2-67
J
Jack Storage ............................................... 5.29, 5.39
Jumpstarting
.................................................... 5-3
K
Key ReleaseLever ............................................... 2-12
Keys
........................................................... 2-3
5
ProCarManuals.com

L
Labels Certificatioflire
.............................................. 6-65
Truck-Camper
............................................... 6-68
Lights
......................................................... 2-70
BrakeSystemWarning
......................................... 2-70
Bulb Replacement
................................... 2-52.6-53. 6-98
Cargo Lamp
............................................ 2.58. 6.60
Charging System Light
......................................... 2-73
Check Gages Light
............................................ 2-75
CHMSL
..................................................... 2-82
DomeLights
................................................. 2-51
Fender
...................................................... 6-58
Front Parking/Turn Signal
....................................... 6-55
GlowPlugsLight
............................................. 2-72
Headlights (See “Headlights”)
Indicator
.................................................... 2-77
Low Coolant Warning
.......................................... 2-73
Malfunction Indicator
..................................... 2.74. 6.66
Reading
..................................................... 2-51
Service Engine
Soon ........................................... 2-74
Service Throttle Soon
.......................................... 2-72
SideMarker
.................................................. 6-58
Rear .................................................... 6-60. 6-61
Replacementchart
............................................ 6-98
RoofMarker
................................................. 6-59
TailgateMarker
................................................ 6-59
Underhood Reel Lamp
......................................... 2-53
WaterInFuel
................................................. 2-71
LoadingYourVehicle
............................................ 6-65
Lubrication
..................................................... 6-51
Accelerator Control System
..................................... 6-51
Body
....................................................... 6-51
Constant Velocity Joints
........................................ 6-51
FrontAxle
................................................... 6-37
Front Shock Absorbers
......................................... 6-49
Front Suspension and Steering Linkage
............................ 6-49
FrontWheelBearings
.......................................... 6-49
TailgateHandle
............................................... 6-52
Hood Latches and Hinge ........................................ 6-51
Hydraulic Clutch Grease Fitting
.................................. 6-35
Lockcylinders
............................................... 6-52
Propeller Shaft Slip Splines
..................................... 6-51
RearAxle ................................................... 6-35
Recommended Lubricants
...................................... 7-25
Transfer Case
................................................ 6-36
Operation
................................................... 249
6
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Power DoorLocks
................................................... 2-6
Steering
...................................................... 4-8
Steering Fluid ................................................ 6-43
Winches ..................................................... 4-36
Power Take-Off (PTO) ........................................... 4-37
Product Service Publications
........................................ 8-6
Radiator Pressure Cap
............................................ 6-42
Radio (see “Audio Systems”)
Recommended Fluids and Lubricants
................................ 7-25
Replacement Parts ............................................... 6-91
Reporting Safety Defects ........................................... 8-5
Roadside Assistance ............................................... 8-5
RockingYourVehicle ............................................ 5-41
Recovery Hooks ................................................. 5-41
Safety Belts
.................................................... 1-10
Adults ...................................................... 1-15
Center Passenger Position ....................................... 1-24
Cleaning
.................................................... 6-84
Checking Restraint System ......................................
Child Restraints ...............................................
Children ....................................................
DriverPosition ...............................................
Extender ....................................................
Lapshoulder .................................................
Large Children ...............................................
Properwear .................................................
Questions and Answers .........................................
Rearseatpassengers ...........................................
ReminderLight ...............................................
Right Front Passenger Position ...................................
Small Children and Babies ......................................
Use During Pregnancy .........................................
SafetyChains ...................................................
Replacing After a Crash ........................................
WhyTheyWork ..............................................
144
1-32
1-30
1-16
1-43
1-16
1-41
1-15
1-14
1-25
1-15
1-44
1-23
1-30
1-23
1-11
4-41
Safety Warnings and Symbols ........................................ vi
Scheduled Maintenance Services
..................................... 7-3
Seats
Controls
...................................................... 1-2
Easy Entry Seat ................................................ 1-6
Latches
.................................................. 1-5, 1-9
ManualFront .................................................. 1-2
PowerDriver’s
................................................ 1-3
Rear ......................................................... 1-8
Reclining ..................................................... 1-3
8
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I
Service Do-It-Yourself
.......
Parts Identification Label
Publications
..........
Replacement Parts and Fj
Service Engine Soon Light
Service Station Checks
....
11
........................................ 6-3
....................................... 6-90
.................................... 8.6, 8.8
ter Recommendations
..................... 6-94
.................................. 2.74. 6-65
....................................... 7-28
Shift Indicator Light
......................................... 2.26, 2.76
ShiftingIntoPark
................................................ 2-30
Sliding Rear Window
............................................. 2-38
SpareTire
...................................................... 5-29
Pickup Bed Mounting
..................................... 5.31. 5-40
Specification Charts .............................................. 6-91
Speedometer
.................................................... 2-68
Starting your Diesel Engine
........................................ 2-16
Starting your Gasoline Engine
...................................... 2-12
Removal
.................................................... 5-29
Storage
..................................................... 5-39
Steering
........................................................ 4-8
Column Shift Lever
............................................ 2-30
InEmergencies
................................................ 4-9
Console
................................................ 2-59. 2-61
GarageDoorOpener
........................................... 2-61
GloveBox
................................................... 2-58
Other
....................................................... 2-65
SunVisors
..................................................... 2-55
Swing-Outwindows
............................................. 2-38
Storage Compartments
............................................ 2-58
T
Tachometer ..................................................... 2-69
Tailgate
......................................................... 2-8
Theft
........................................................... 2-9
Tiltwheel
...................................................... 2-39
Tires
.......................................................... 6-71
Chains
...................................................... 6-79
Flat
........................................................ 5-26
Balancing
................................................... 6-78
Changing a Flat
.......................................... 5.25, 5.32
Hub CapsNVheel Nut Caps
...................................... 5-32
InspectionRotation
....................................... 6-73. 6-75
Loading
..................................................... 2-39
New
........................................................ 6-76
Pressure
..................................................... 6-71
Spare (See “Spare Tire”)
Underbodycarrier
............................................ 5-29
Uniform Tire Quality Grading
................................... 6-77
TorqueLock
............................................... 2.29. 2.31
Towing
ATrailer
............................................... 4-38. 6.67
Maintenance
................................................. 4-44
Recommendations
............................................. 6-70
Turnsignals
................................................. 4-42
Following Distance
............................................ 4-42
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