
Courtesy  Transportation 
The  GMC Truck Commitment  Plus  Program  offers  courtesy transportation 
for  customers  when obtaining  warranty service. The Courtesy 
Transportation  Program  is available  to  retail purchasers  of Commitment 
Plus  eligible 
1995 GMC  light duty trucks.  This program  is offered in 
conjunction  with the 36 month/36,000  mile  BUMPER  TO BUMPER  New 
Vehicle  Limited  Warranty. 
In  Canada, please consult  your GM dealer  for  information  on courtesy 
transportation. 
COURTESY  TRANSPORTATION  INCLUDES: 
0 
0 
0 
One way  SHUTTLE  RIDE  from  the  dealership  (up to 10 miles) for 
same-day  warranty repairs. 
A  loaner  vehicle  will be  made  available  for  overnight  warranty repairs 
up  to  a 
5 day  maximum,  or up to a $30  allowance  for  a rental  vehicle, 
cab,  bus  or other  transportation  in lieu  of a loaner.  (Bringing  vehicles in 
late  in the  day,  for  service  on  the next day, 
does  not constitute 
overnight  repairs.) 
GAS allowance of up  to $10 a day  for  rides  provided by another  person 
(i.e.,  friend,  neighbor,  etc.)  in lieu 
of rental for  overnight  warranty 
repair  up 
to 5 day  maximum. 
Note:  All  Courtesy  Transportation  arrangements  will  be  administer\
ed 
by  your 
GMC Truck  dealership  service  management. All requests 
should  reflect  actual  costs 
up to  and  not  to exceed  the  maximum 
allowable  dollar  limits. 
0 The  Commitment  Plus  Courtesy  Transportation  Program is not part  of 
the  BUMPER  TO BUMPER  Limited Warranty.  GMC Truck  reserves 
the  right  to make  any  changes  or discontinue  the Courtesy 
Transportation  Program  at any  time  without  notification. 
0 For  additional  program  details  contact  your  GMC Truck  dealer. 
Note:  Because  of  insurance  liability  considerations,  age restrictions 
exist  in some  states  when  loaning  dealer  owned  vehicles  or  obtaining 
vehicles  from  rental  establishments.  See  your  dealer  for  details\
. 
8-7 
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Service  and  Owner  Publications 
Service manuals,  service bulletins,  owner’s manuals and other  service 
literature  are available  for purchase  for all current and  many  past model 
General  Motors  vehicles. 
Toll-free  telephone  numbers for ordering  information: 
United  States 
......... 1-800-551-4123 
Canada .............. 1-800-668-5539 
Service  Manuals 
Service  manuals contain diagnosis  and repair information  for all chassis and 
body  systems.  They may  be  useful  for  owners who wish  to get  a greater 
understanding  of their vehicle. They  are 
also useful for owners  with the 
appropriate  skill level  or training who wish to perform  “do-it-yourself’ 
service.  These  are  authentic General Motors’ service manuals meant  for 
professional,  qualified technicians. 
Service  Bulletins 
Service  bulletins  covering various  subjects are regularly sent  to all  General 
Motors  dealerships.  GM  monitors product performance 
in the field.  When 
service  methods are found which promote better service on  GM vehicles, 
bulletins  are created 
to help the technician perform better service.  Service 
bulletins  may involve any number 
of vehicles.  Some will describe 
inexpensive  service; others will describe  expensive service.  Some will 
advise  of  new  or unexpected conditions, and others  may help avoid 
future 
costly  repairs,  Service  bulletins are meant for qualified technicians.  In some 
cases  they refer to service manuals, specialized tools,  equipment and safety 
procedures  necessary to service the vehicle.  Since these bulletins  are issued 
throughout  the model  year and beyond,  an index is required  and published 
quarterly 
to help identify specific bulletins.  Subscriptions  are available. You 
can  order  an index at the toll-free  numbers listed previously, or ask a GM 
dealer 
to see  an index  or individual bulletin. 
Owner  Publications 
Owner’s manuals, warranty folders and various  owner assistance booklets 
provide  owners with general operation  and maintenance information. 
8-8 
ProCarManuals.com 

1995 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  c\
ard, 
call us TOLL  FREE at 1-800-627-5699. 
From  outside  the Continental  United States,  please  call  1-31  3-455-801 6 
SERVICE  MANUALS 
Service  Manuals  have  the  diagnosis,  repair  and  overhaul  informat\
ion  on 
engines,  transmissions,  axle,  suspension,  brakes,  electrical,  stee\
ring, 
body,  etc. 
NOTE:  Please  specify  special  body  or engine  types  on order  form. 
Write  information  in  the Form  Number  column.  For  example:  Turbo, 
Convertible. 
OWNER’S  INFORMATION 
Owner  publications  are written  directly  for  owners  and  intended  to 
provide  basic  operational  information  about  the  vehicle.  The  Own\
er’s 
Manual  includes  the  Maintenance  Schedule  for  all  models.  Owner’s 
manuals  are  available  individually  or  as  a  complete  portfolio. 
GM  SERVICE  BULLETINS 
GM  Service  Bulletins  (GMSB)  provides  technical  service  informat\
ion  to 
knowledgeably  service  General  Motors  cars  and trucks. 
These  bulletins  may 
be purchased  in a  subscription  package.  Pricing 
and  ordering  information  is available  by  calling 1-800-762-4356, 
ProCarManuals.com 

Engine (continued) 
Coolant 
..................................................... 6-35 
Coolant  Heater 
...................................... 2.18.3-4.  6.21 
Coolant  Temperature  Gage  (See “Gages”) 
Control  Module  System 
........................................ 6-57 
Diesel  Heater Output 
............................................ 34 
Exhaust 
..................................................... 2-32 
FanNoise 
................................................... 5-25 
Identification 
....................................... 6-76,677,  6-81 
Oil  (See  “Oil”) 
Overheating 
.................................................. 5-10 
RunningWhileParked 
......................................... 2-32 
Starting  Your Gasoline  Engine 
................................... 2-12 
Starting  Your Diesel  Engine 
..................................... 2-14 
Exhaustsystem 
................................................. 6-56 
F 
Filter  Replacement  Chart  (See “Service-Replacement  Parts and Filter 
Recommendations”) 
FinishDamage 
.................................................. 6-74 
Fluid  Capacities  (See  “Capacities  and Specification”) 
FluidLeakCheck 
................................................ 646 
Fluids  (See  “Scheduled Maintenance  Services”) 
Fog  Lamps  (See “Lamps-Fog”) 
Four-WheelDrive 
.......................................... 2-33,  6-33 
Front Axle Locking  Feature 
..................................... 2-36 
Transfer  Case 
........................................... 2-34,  6-33 
Canadian 
...................................................... 6-5 
Diesel 
....................................................... 6-3 
FillingYourTank 
............................................. 6-11 
Fuel 
Foreign  Countries  (Gasoline  Engines) 
............................. 6-11 
Filter  Replacement  (Diesel  Engines) 
............................... 6-9 
Gage  (See  “Gages”) 
Gasoline 
..................................................... 6-2 
Gasolines  for  Cleaner  Air 
........................................ 6-3 
Running  Out of Fuel  (Diesel  Engines) 
.............................. 6-8 
Tankcapacity 
................................................ 6-83 
Water  in  Fuel  (Diesel  Engines) 
............................... 2-74, 6-5 
Fuses and  Circuit  Breakers ................................... 6-79,  6-87 
FuseBlock 
............................................. 6-80, 6-86 
G 
Gages  Engine  Coolant  Temperature Gage 
................................ 2-80 
Oil  Pressure  Gage 
............................................. 2-81 
Tamper  Resistant  Odometer ..................................... 2-69 
Trip  Odometer 
................................................ 2-69 
FuelGage 
................................................... 2-79 
Speedometer 
................................................. 2-69 
Tachometer 
.................................................. 2-70 
Voltmeter 
.................................................... 2-82 
4 
ProCarManuals.com 

Lamps (continued) 
Lamp  and Bulb  Data 
........................................... 6-88 
Reading 
..................................................... 2-51 
Replacement  (See “Bulb  Replacement“) 
Underhood  Reel Lamp 
......................................... 2-52 
Lights ......................................................... 2-70 
Air Bag Readiness Light 
................................... 1-20,  2-71 
Anti-.  Lock  Brake System  Warning  Light 
........................... 2-73 
Brake System  Warning Light 
.................................... 2-72 
Charging  System  Warning Light 
.................................. 2-76 
Daytime  Running  Lamps (DRL) Indicator Light 
................ 2-50,  2-77 
Check 
Gages Light 
............................................ 2-77 
Glow  Plugs Light 
............................................. 2-75 
Headlamp  High Beam Indicator Light 
............................. 2-78 
Headlights  (See  “Headlamps”)  Low Coolant  Warning Light 
................................ 2-75,  6-38 
Malfunction  Indicator 
..................................... 2-76,  6-57 
Safety  Belt Reminder  Light 
..................................... 2-71 
Service  Throttle  Soon 
.......................................... 2-74 
ShiftLight 
.............................................. 2-25, 2-78 
Turn Signal  and Lane Change  Indicator Light .................. 240,  2-79 
Water 
in Fuel  (Diesel  Engine) .................................... 2-74 
Loading  Your  Vehicle 
............................................ 4-37 
Trailering  Package 
............................................ 4-39 
Truck-Camper  Loading 
........................................ 4-39 
Lock  Cylinders  (See “Key Lock Cylinders“) 
Loss of  Control  (See “Driving-Loss 
of Control”) 
Lubrication  (See  “Recommended Fluids and Lubricants“) 
M 
Malfunction  Indicator  Lamp  (See “Lights”) 
Maintenance  (See “Scheduled  Maintenance  Services”) 
Master  Cylinder  (See  “Brakes”) 
Mirrors  Convexoutside 
............................................... 2-56 
Electric  Outside  Rearview  Mirrors 
................................ 2-56 
Electrochromic  Inside  Rearview  Mirror 
............................ 2-54 
Inside 
....................................................... 2-53 
Outside 
..................................................... 2-56 
ModelReference 
.................................................. iv 
Multifunction  Lever .............................................. 2-39 
N 
Noise  Control  System ............................................ 6-14 
0 
Odometer  (See “Gages“) 
Off-Road  Driving (See  ”Driving-Off  Road  Driving”) 
Off-Road  Recovery 
............................................... 4-9 
6 
ProCarManuals.com 

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 
7 
ProCarManuals.com 

Seats  (continued) Reclining  Front Seatbacks 
....................................... 1-3 
Seatback  Latches 
........................................... 14. 1-8 
Doing  Your  Own Service  Work ................................... 6-1 
Parts  Identification  Label 
..................... 
Service 
Publications 
................................. 
Replacement  Parts  and Filter Recommendations .... 
Service  Engine  Soon  Light  (See  “Lights”) 
Servicing  Your  Air Bag-Equipped  Vehicle (See “Supple 
System  (SIR)”) 
Shift Indicator  Light (See *‘Lights“) 
Shifting  Into  Park (P) 
........................... 
Shifting  Out of Park ............................. 
Shock  Absorbers  (Front) ......................... 
.................. 6-78 
.................. 8-8 
....... 6-80.6-84,6-85 
:r nental Inflatable  Restraint 
................. 2-28 
................. 2-29 
................. 6-45 
Specifications  Chart  (See “Service . Replacement  Parts  and Filter 
Recommendations“)  SpareTire 
................................................. 5-28.5-29 
Speedometer  and Odometer  (See  “Gages”) 
Starting  Your Engine  (See ”Engine-Starting”) 
Steering 
........................................................ 4-7 
Column  Shift Lever 
............................................ 2-29 
InEmergencies 
................................................ 4-8 
Tips 
......................................................... 4-7 
Step-Bumperpad ................................................ 2-84 
Storage  Compartments 
............................................ 2-59 
Sunvisors 
..................................................... 2-57 
Supplemental  Inflatable  Restraint  System  (SIR) 
........................ 1-19 
Adding  Equipment  to  Your Facial Air  Bag-Equipped  Vehicle 
.......... 1-23 
How the Air Bag System  Works .................................. 1-20 
Servicing  Your  Air Bag-Equipped  Vehicle 
......................... 1-23 
Surge Tank Pressure  Cap 
.......................................... 6-39 
T 
Tachometer (See “Gages”) 
Tail~ate 
......................................................... 2-4 
Removal ..................................................... 2-4 
TIleft ........................................................... 2-8 
Thermostat 
..................................................... 6-40 
Tilt Wheel  (Option) .............................................. 2-38 
Tires 
.......................................................... 6-58 
Balancing  (See  “Wheel  Alignment and Tire  Balance”) 
Chains 
...................................................... 6-66 
Dual Tire Operation ........................................... 6-62 
Flat  (See  ”Changing 
a Flat Tire”) 
Inspection  and Rotation 
........................................ 6-59 
Loading  (See “Loading  Your Vehicle”) 
New 
........................................................ 6-63 
Pressure 
..................................................... 6-58 
Spare  (See ”Spare  Tire”) 
Uniform Tire Quality  Grading 
................................... 6-63 
Top  Strap  (See  “Safety Belts-Child  Restraints“) 
Torque Lock  (See “Transmission-Torque  Lock“) 
9 
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