
NOTICE: 
If you damage  the  cover  for  the  driver’s  air  bag,  it  may  not  work\
 
properly.  You may  have  to  replace  the  air  bag  module. 
Do not 
open  or  break  the  air  bag  cover. 
Servicing Your Air  Bag-Equipped  Vehicle 
The  air bag affects  how your vehicle  should  be serviced.  There  are  parts of 
the air bag  system in several places around your vehicle.  You don’t  want the 
system to inflate while  someone is working  on your vehicle.  Your 
GM 
dealer and the 1995 GM Service  Manual  have information about  servicing 
your  vehicle  and  the air bag  system.  To purchase 
a service manual,  see 
”Service  Publications” 
in the  Index. The air bag system  does not  need 
regular  maintenance. 
A CAUTION: 
For  up  to 2 minutes  after  the  ignition  key is turned  off and  the 
battery  is disconnected,  an  air  bag  can  still  inflate  during 
improper  service. 
You can  be  injured  if you  are close  to  an  air 
bag  when  it  inflates. 
Avoid wires  wrapped  with  yellow tape, or 
yellow  connectors.  They  are  probably  part  of the  air  bag  system. 
Be  sure  to  follow proper  service  procedures,  and  make  sure  the 
person  performing  work  for  you 
is qualified  to  do so. 
Adding  Equipment  to Your  Air  Bag-Equipped  Vehicle 
Q: If I add  a  push  bumper or a bicycle  rack  to  the front of my  vehicle, 
will  it keep the  air  bag from working  properly? 
A: As long  as the push  bumper or bicycle  rack  is attached to your vehicle 
so that the vehicle‘s basic  structure isn’t changed.  it‘s not  likely  to keep 
the  air bags  from  working properly 
in a  crash. 
Q: What if I add a wow plow?  Will it keep the  air bag  from  working 
properly? 
A: We’ve  designed our air bag  systems to work  properly  under a wide 
range 
of conditions.  including snow plowing  with vehicles equipped 
with  the optional  Snow  Plow Prep Package 
(RPO VYU). But don’t 
change  or  defeat the  snow plow’s  “tripping mechanism.” 
If you do, it 
can damage  your  snow plow and your vehicle,  and it may cause  an air 
bag inflation. 
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Leaving Your  Vehicle 
It' you are  leaving  the vehicle.  take your  keys.  open your door and  set  the 
locks  from inside. Then  get out 
and close  the door. 
Keyless Entry System 
If your  vehicle  has this option.  you  can  lock  and  unlock  your  doors  from  up  to 
30 feet (9 m) away usins the  key  chain  transmitter  supplied with your  vehicle. 
Your  Keyless 
Entry System  operates on ;I radio frequency  subject to  Federal 
Communications  Commission (FCC) 
Rules. 
This  device  complies with Part IS of the  FCC Rules. Operation  is subject to 
the  following  two conditions: ( I ) This  device  may  not cause harmful 
interference.  and 
(2) This  device  must accept any  interterence  received, 
including  interference  that  may 
C~LIS~ undesired operation. 
Should  interference  to 
this system occur. try this: 
0 Check to determine if battery replacement  is necessary.  See the 
instructions 
on battery replacement. 
Check the  distance. You  nay be too far from your vehicle. This product 
has 
a maximum  range. 
0 Check  the location. Other vehicles  or objects  may  be  blocking  the  signal 
0 See your GM dealer  or a qualified  technician for service. 
Changes  or  modifications  to this  system  by other  than an authorized  service 
facility could  void authorization 
to use this equipment. 
Operation 
To unlock  the driver's  door. press  the UNLOCK  button. If you  press this 
button again within five  seconds, all the doors will unlock. 
Press the 
LOCK button  to  lock all the doors. 
The  illuminated entry  feature  activates the  interior dome  lamps 
for 40 
seconds or until the  ignition switch is turned on. 
Matching  Transmitter(s) To Your Vehicle 
Each key chain  transmitter is coded  to prevent  another  transmitter  from 
unlocking  your  vehicle. 
If a transmitter is lost or stolen. a replacement  can 
be  purchased  through  your dealer. Remember  to bring any remaining 
transmitters  with  you  when 
you go to your  dealer. When  the dealer  matches 
the  replacement  transmitter 
to your  vehicle,  the remaining  transmitters  must 
also  be matched. Once  the  new transmitte.r  is coded,  the 
lost transmitter will 
not unlock your vehicle. 
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key in START  for no more  than ten seconds.  This  clears  the extra 
gasoline  from  the engine. 
If  the  engine  still  doesn’t  start,  wait another 
15 seconds and  do  Step 4 
again. 
When the  engine  starts,  let  go 
of the key  and the accelerator  pedal. 
NOTICE: 
Your  engine  is  designed  to  work  with  the  electronics  in  your 
vehicle. 
If you add  electrical  parts  or  accessories,  you could 
change  the 
way the  fuel  injection  system  operates.  Before  adding 
electrical  equipment,  check  with  your  dealer. 
If you  don’t,  your 
engine  might  not  perform  properly. 
If you  ever  have  to  have  your  vehicle  towed,  see  t,he part of this 
manual  that  tells  how to  do  it  without  damaging  your  vehicle. 
See  “Towing  Your  Vehicle” in  the  Index. 
To start your 5.7 Liter  (Code K) or 7.4 Liter  (Code N) V8 engine: 
1. Without pushing the accelerator  pedal,  turn your ignition key to 
START.  When the  engine  starts,  let  go  of the  key.  The  idle  speed will 
go  down  as your  engine gets warm. 
NOTICE: 
Holding  your  key in  START for longer  than 15 seconds  at a time 
will  cause  your  battery  to  be  drained  much  sooner.  And  the 
excessive  heat  can  damage  your  starter  motor. 
2. If it doesn’t  start right away, hold your key  in  START.  If it doesn’t start 
in three  seconds,  push the accelerator  pedal about  one-quarter of the 
way  down  for 
12 more seconds,  or until it starts. 
3. If your  engine  still won’t  start (or starts  but then  stops), it could  be 
flooded  with too much  gasoline.  Try this: 
4. Wait 15 seconds to let the starter  motor cool down.  Then push your 
accelerator  pedal 
all the way to the floor. Hold it there.  Then hold the 
key 
in START  for  no  more  than ten seconds.  This  clears  the extra 
gasoline  from 
the engine. If the  engine  still doesn’t  start,  wait another 
15 seconds  and do  Step 4 again. 
When 
the engine  starts,  let  go of the key and the  accelerator  pedal. 
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How long  should  you keep  the  coolant  heater plugged in? The answer 
depends  on the weather, 
the kind of oil  you  have, and  some  other  things. 
Follow  this  chart. 
Viscosity/ 
Oil Grade 
SAE 
1 OW-30 
SAE 
15W-40 
32°F to 0°F 
(0°C to -18°C) 
Not 
Required 
Not 
Required 
0°F to -10°F 
(-18OC 
to 
-23 O C) 
Two 
Hours:!: 
Two 
Hours‘% 
Below  -10°F 
Below  -23” 
C 
Eight Hours’> 
or  Overnight 
Eight Hours*  or  Overnight 
’%The times  listed  are minimum  times. 
It will not harm  either  the coolant 
heater  or the  vehicle to leave 
the coolant  heater plugged  in longer  than  the 
times  stated. 
See  “Diesel Fuel  Requirements  and Fuel System’’ 
in the Index  for 
information 
on what fuel to  use in cold weather. 
If Your Diesel Engine  Won’t  Start 
If you‘ve  run out of fuel,  look at  “Running  Out of Fuel”  (see “Diesel Fuel 
Requirements  and Fuel System” 
in the Index). 
If you‘re  not out  of fuel,  and  your engine won’t start, do this: 
Turn your ignition key to RUN.  Make  sure  that the GLOW  PLUGS  light is 
out. Then  IMMEDIATELY  turn the ignition key to START. 
If the light  doesn’t  go off, wait  a few  seconds,  then try starting your  engine 
again.  And, see your  dealer  as  soon as 
you can for  a  starting  system check. 
If the light  comes on and  then  goes off and you  know  your batteries  are 
charged,  but your engine still won’t  start, your vehicle needs  service. 
If the light does not come on when the engine  is cold,  your vehicle needs 
service. 
If  your batteries  don‘t have enough  charge to start  your  engine, see 
“Battery” 
in the Index. 
Be  sure  you have the right  oil for  your  engine,  and that you’ve changed the 
oil  at the  proper  times. If you  use the wrong 
oil, your  engine  may  be  harder 
to  start. 
If  the  engine  starts,  runs a  short  time,  then stops,  your vehicle  needs service. 
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REPORTING  SAFETY  DEFECTS TO THE 
CANADIAN  GOVERNMENT 
If you live in Canada,  and you  believe  that your vehicle has  a safety  defect, 
you  should  immediately  notify Transport Canada, in addition 
to notifying 
General  Motors  of Canada  Limited. 
You may write to: 
Transport  Canada 
Box 8880 
Ottawa,  Ontario K1 G 352. 
REPORTING  SAFETY  DEFECTS  TO  GENERAL  MOTORS 
In  addition to notifying  NHTSA  (or Transport  Canada) in a situation  like 
this, we  certainly  hope 
you’ll notify us. Please call us at 
1-800-GMC-TRUCK  (1-800-462-8782),  or write: 
GMC  Truck  Consumer  Relations 
3 
1 E. Judson  Street  1607-04 
Pontiac,  MI  48342-2230 
In  Canada,  please  call 
us at 1-800-263-3777  (English)  or 1-800-263-7854 
(French).  Or, write: 
General  Motors of Canada  Limited 
Customer  Assistance  Center 
1908  Colonel  Sam  Drive 
Oshawa,  Ontario 
LlH 8P7 
Roadside  Assistance 
GMC  Truck’s  Roadside  Assistance  provides stranded owners with 
over-the-phone  roadside  repairs,  location of the nearest  GMC  Truck  dealer, 
or  the  following  special services: 
Flat  Tire Change: Installation of spare  tire  will be covered  at no  charge 
(customer 
is responsible  for  repair or replacement  of tire). 
Fuel Delivery: Delivery of enough  fuel  for the customer  to  get to the 
nearest service  station (up to $4.00). 
Jump  Start: No-start  situations  which require a battery  jump start will  be 
covered  at 
no charge. 
Lock Out: Replacement  keys  or locksmith  service will be covered at no 
charge  if  you are unable  to  gain  entry  into  your  vehicle. Delivery of the 
replacement  key will be  covered  at no  charge  within a 10-mile  radius. 
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