
50,000 Miles (80 000 km) 
0 
0 
Change  engine oil  and filter  (or  every 3 months, whichever  occurs 
first). AII Emissiou Cor1trd Senicv. 
Lubricate the front  suspension,  king pin bushings.  steering  linkage, 
transmission  shift linkage, transfer  case shift linkage. parking brake 
cable  guides,  rear driveline  center  splines,  front axle propshaft splines, 
brake pedal  springs  and clutch  pedal springs. 
Ball joints  and king  pin 
bushings  should  not  be lubricated unless their temperature  is 
10" F 
(- 12" C), or higher. When  weather  is cold,  let  the  ball  -joints and king 
pin bushings warm  up before  lubrication or  they could  be damaged. 
Perform each  of  the listed  lubrication  service items  at this mileage 
interval  (or every 
12 months, whichever  occurs  first). 
Change  automatic  transmission  fluid and  filter 
if the vehicle is mainly 
driven  under one  or more 
of these  conditions: 
0 
0 
a 
0 
In heavy city traffic where  the outside  temperature  regularly 
reaches 
90°F (32°C)  or higher. 
In hilly or mountainous  terrain. 
When  doing  frequent  trailer towing. 
Uses  such 
as found in taxi, police  or delivery  service. If you do 
not  use  your  vehicle  under  any 
of these  conditions,  the  fluid 
and  filter  do not  require  changing. 
Manual transmission  fluid 
doesn't  require change. 
Inspect  shields and underhood  insulation for  damage  or  looseness. 
Adjust  or replace  as required. 
This is a  Noise  Emission  Control 
Service.  Applicable  only  to vehicles  sold  in  the  United  States. 
Check the  air intake system  installation to assure  that gaskets  are 
properly  sealed  and  that  all hose connections,  fasteners  and other 
components  are tight. 
Also check to be sure  that the air cleaner housing 
is  properly  seated, the cover  fits  tightly and  the  wing nuts are tight. 
Tighten  connections  and fasteners  or  replace damaged  parts as 
necessary. 
This is a  Noise  Emission  Control  Service.  Applicable  only 
to  vehicles  sold  in the  United  States. 
If your  engine  has a thermostatically  controlled  cooling Fan, inspect all 
hoses  and ducts for proper  hook-up (or every 
12 months. whichever 
occurs  first).  Be sure  the valve works properly. 
This is a  Noise 
Emission  Control  Service.  Applicable  only  to  vehicles  sold  in  t\
he 
United  States. 
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Emergency  Towing  Service: Towing to the nearest GMC Truck dealer  for 
warranty related  disablements. 
The Roadside Assistance  services listed above  are  available to retail and 
retail  lease customers  operating 
1995 light duty GMC trucks for a period of 
36 months  or 36,000 miles. All services  must be pre-arranged  by GMC 
Truck  Roadside  Assistance. 
Note: Over-the-phone  assistance, such as providing the name  of the closest 
dealer  or minor technical advice,  etc. is available 
to all  owner/operators  of 
GMC  Truck vehicles, regardless  of vehicle  or mileage. 
Just  dial  GMC  Truck Roadside  Assistance at  1-800-GMC TRUCK 
(1-800-462-8782, Roadside Assistance  prompt)  to  reach a qualified 
representative  who can assist 
you. 
Your  Roadside  Assistance representative  will ask  for  the following 
information when your call 
is received: 
0 Vehicle  Identification Number  (VIN). 
0 Name and Home  Address. 
0 Telephone number  and location  from which  you are calling. 
0 Location,  license plate  number and  color of your  GMC truck. 
Mileage of vehicle and description  of problem. 
Roadside  Assistance  is available 
24 hours  a day,  seven  days  a  week, 
365 days  a  year, including weekends and holidays.  Should  you have any 
questions  about Roadside Assistance, call the  GMC Truck  Roadside 
Assistance  center  or contact your dealer. 
Roadside  Assistance  is  not  part of or  included  in  the  coverage  provided by 
the  New  Vehicle  Limited  Warranty. GMC Truck  reserves  the  right  to  make 
any changes or discontinue  the  Roadside  Assistance  program  at any time 
without  notification. 
Canadian  Roadside  Assistance 
Vehicles purchased  in Canada  have an  extensive  Roadside  Assistance 
program  accessible  from  anywhere  in Canada  or the U.S.A.  Please refer 
to 
the  separate  brochure provided  by the  dealer  or call 1-800-268-6800 for 
emergency  services. 
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H 
Halogen  Bulbs (See "Bulb  Replacement") 
Hazard  Warning  Flashers 
........................................... 5-1 
Head Restraints  (See "Seats") 
Headlamps  and  Vehicle Lighting 
.................................... 2-48 
Replacement  (See "Bulb  Replacement") 
High  Beam  Indicator  Light  (See "Lights") 
High-Low  Beam  Changer 
...................................... 240 
Reminder .................................................... 2-49 
Heater Controls .................................................. 3-1 
Refrigerant  Capacity ........................................... 6-85 
Heater/Air  Conditioning  Controls ............................... 3-2 . 6-46 
Highway  Hypnosis (See "Driving-Highway  Hypnosis") 
Hitches  (See "Towing-Hitches") 
Hood 
Checking  Under:  Hood  Release .................................. 6-13 
Horn .......................................................... 2-38 
Hydraulic  Clutch ................................................ 6-31 
When to Check and  What to Use ................................. 6-32 
Howtocheck ................................................ 6-32 
Hydroplaning  (See "Driving in the Rain") 
I 
If You're  Stuck in Sand . Mud.  Ice . or Snow ........................... 5-39 
Ignition Switch .................................................. 2-10 
Intlation-Tire Prussure (See "Tires") 
Instrument  Cluster 
............................................... 2-68 
InstrumentPanel ................................................ 2-68 
J 
Jacking  Equipment  Storage ................................... 5-27 . 5-28 
Jump Starting .................................................... 5-2 
K 
Key Lock Cylinders ......................................... 6-46.7-94 
Key Release Button .............................................. 2-11 
Keyless  Entry System ............................................. 2-7 
Keys 
........................................................... 2-1 
L 
Labe 1 s 
Lamps 
Certification/Tire  (See  "CertificaticdTire  Label") 
CargdCenter  High Mounted  Stop  Lamp 
...................... 2.52, 2.83 
Daytime  Running Lamps ....................................... 2-50 
Dome 
....................................................... 2-51 
Fog ........................................................ 2-49 
Headlights 
(See "Headlamps") 
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Oil DieselEngines 
............................................... 6-21 
Additives 
................................................. 6-25 
Pressure  Gage  (See  “Gages” 
j 
ToCheck ................................................. 6-22 
WhatKindtoUse 
.......................................... 6-23 
WhentoAdd 
.............................................. 6-22 
WhentoChange 
............................................ 6-25 
What  to  Do  with  Used  Oil 
.................................... 6-25 
Gasoline  Engines 
............................................. 6-16 
Additives 
................................................. 6-20 
Pressure  Gage  (See  “Gages”) 
ToCheck 
................................................. 6-16 
WhatKindtoUse 
.......................................... 6-17 
WhentoAdd .............................................. 6-17 
When to Change ............................................ 6-20 
What  to  Do  with Used 
Oil .................................... 6-21 
Owner  Checks  and Services 
........................................ 7-93 
Parking  Brake  (See “Brakes-Parking”) 
On  Hills  (See “Towing-Parking  on  Hills’*j 
Over  Things  That  Burn 
........................................ 
Passing (See  “Drivin~-Passing”) 
Periodic Maintenance  Inspections  (See “Scheduled  Maintenance  Services”) 
Power 
Door  Locks  (See “Dood’j  2-31 
Steering 
...................................................... 4-7 
Steering  Fluid 
................................................ 640 
Take-Off 
.................................................... 4-35 
Winches 
..................................................... 4-34 
Radiator  Pressure  Cap 
............................................ 6-39 
Radio  (See “Audio  Systems”) 
Rear Axle  (See  ”Axle”) 
Recommended  Fluids and Lubricants  (See “Scheduled  Maintenance  Services“) 
Recovery  Hooks 
................................................. 5-40 
Replacement  Parts ............................................... 6-80 
Reporting  Safety  Defects  To The  United  States Government  (See “Safety  Defects”) 
Roadside  Assistance 
............................................... 8-5 
Rocking  Your  Vehicle ............................................ 5-39 
Rear Window  Defogger 
............................................ 3-4 
Safety  Belts ..................................................... 1-9 
Adults ...................................................... 1-12 
Center  Passenger  Position ....................................... 1-25 
Checking  Restraint  System ...................................... 1-44 
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Child Restraints ............................................... 1-33 
Center  Seat Position 
......................................... 1-38 
Larger Children ............................................ 
Properwear ................................................. 1-12 
Rear  Seat Outside  Passenger  Positions  (Crew Cab) ................... 1-29 
Rear  Seat Outside  Passenger  Positions  (Extended 
Cab) ................ 1-26 
Reminder Light (See "Lights") 
Replacing  Seat  and  Restraint  Parts  After 
a Crash ..................... 144 
Lap-Shoulder  Belt .................................. 1-13 . 1-27 . 1-29 
Questions & Answers .......................................... I -12 
Rear  Seat Passengers 
........................................... 1-26 
Right  Front  Passenfer Position ................................... 1-25 
Use During Pregnancy ......................................... 1-24 
Why  Safety  Belts  Work 
......................................... 1-10 
Safety Chains  (See  "Towing a Trailer") 
Safety  Defects  Reporting  Safety Defects 
to the  Canadian Governrnent ................. 8-5 
Reporting  Safety  Defects  to  General  Motors ......................... 8-5 
Reporting  Safety  Defects  to  the  United  States Governnlent .............. 8-4 
Safety WarninFs  and  Symbols ......................................... v 
Scheduled Malntenance  Serviccs 
Maintenance  Record 
.......................................... 7- 100 
Maintenance  Schedule I 
Diesel Engines ......................................... 7-9.7-62 
Gasoline  Engines  with  Heavy  Duty Emissions 
................ 7-6 . 7-35 
Gasoline  Engines  with  Light  Duty Emissions 
................. 74 . 7-12 
Diesel  Engines 
........................................ 7-1 I, 7-80 
Gasoline  Engines  with  Heavy  Duty Emissions 
................ 7-8 . 7-52 
Gasoline  Engines  with  Light  Duty Emissions 
................. 7-5,  7-27 
Periodic  Maintenance  Inspections 
................................ 7-97 
Recommended  Fluids  and Lubricants .............................. 7-98 
Selecting  the  Right  Schedule 
..................................... 7-3 
Using 
Your Maintenance  Schedule ................................. 7-3 
Maintenance  Schedule 
IT 
WhenTrailerTowing .......................................... 4-49 
Seats ........................................................... 1-1 
Controls ...................................................... 1-1 
Easy Entry 
Seat ................................................ 1-5 
Head  Restraints ................................................ 1-7 
ManualFrontSeat .............................................. 1-1 
Power  Lumbar  Adjustment ....................................... 1-3 
Powerseats ................................................... 1-2 
Rear Folding Seat .............................................. 1-7 
RearSeat ..................................................... 1-8 
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Towing ATrailer 
.................................................... 442 
DrivingonGrades 
.......................................... 4-47 
Driving  with 
a Trailer ....................................... 4-46 
ParkingonHills 
............................................ 4-48 
Passing 
................................................... 4-46 
Safety  Chains 
.............................................. 445 
Hitches 
..................................................... 4-45 
TowingYourVehicle .............................................. 5-7 
Trailer 
Brakes 
...................................................... 4-45 
Recommendations ............................................. 4-42 
Towing  (See  “Towing”) 
Wiring  Harness 
.......................................... 2-83.  6-79 
Trailering  Package (See “Loading  Your Vehicle”) 
Transmission 
Automatic 
.............................................. 2-19.  6-27 
How  To Add  Fluid 
.......................................... 6-30 
How 
To Check  Fluid ........................................ 6-27 
When  to  Check  and Change  Fluid 
.............................. 6-27 
Five-SpeedManual 
...................................... 2-22:  6-30 
How 
To Add  Fluid .......................................... 6-31 
HowToCheck 
............................................. 6-30 
Shift  Light  (See  “Lights”) 
Shiftspeeds 
............................................... 2-25 
With  Low 
Gear ............................................ 2-22 
WithoutLowGear 
.......................................... 2-24 
WhenToCheck 
............................................ 6-30 
TorqueLock 
............................................ 2-28,  2-30 
Trip  Odometer  (See  “Gages”) 
Turn Signal  and Lane  Change  Indicator  (See  “Lights”) 
V 
Vehicle 
Damage  Warnings 
............................................... vi 
Identification  Number ..................................... 6-76. 6-77 
Loading  (See  “Loading  Your  Vehicle”) 
Storage 
..................................................... 6-47 
Symbols 
........................................... v. vi. v11. ~111. ix 
Ventilation System 
................................................ 3-5 
Tips ......................................................... 3-5 
Voltmeter  (See  “Gages”) 
..... 
Warning 
Devices.  Other 
................................................ 5-2 
Hazard  Flashers  (See  “Hazard Warning  Flashers”) 
Lights  and Indicators 
........................................... 2-70 
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