
9. Attach the cable  at least 18 inches (45 cm) away  from the dead  battery, 
but  not  near  engine parts  that  move.  The electrical  connection 
is just as 
good  there,  but  the  chance of sparks getting back to the  battery is much 
less. 
10. Now  start  the vehicle  with  the good battery  and run the engine for 
awhile. 
1 1. Try  to start  the vehicle  with the dead battery. 
If  it won't  start  after a few tries,  it probably  needs  service. 
Remove  Cables in this Order 
1. Heavy  Metal 
Engine  Part 
2. Good  Battery (-) 
3. Good  Battery (+) 
4. Dead  Battery (+) 
12. Remove  the cables in reverse  order to  prevent  electrical shorting. 
Take  care that  they don't  touch  each other 
or any other  metal. 
Towing Your Vehicle 
Try to have your GM dealer or a professional  towing service  tow your 
vehicle. They can provide  the right equipment  and  know  how 
to tow it 
without damage. 
If  your  vehicle has  been changed  since 
it was  factory-new,  by adding  such 
things  like fog lamps, aero  skirting, or special  tires  and  wheels,  these things 
could 
be damaged during towing. 
Before 
you do  anything,  turn on the hazard  warning flashers. 
When  you  call, 
tell the  towing  service: 
That your vehicle  has  rear-wheel  drive, or that  it has the  four-wheel 
drive  option. 
The make, model,  and  year of your vehicle. 
5-7 ProCarManuals.com 

Towing From the Front 
If  you have a two-wheel drive vehicle, don’t have  your vehicle towed on 
the rear wheels, unless  you must. If the vehicle must  be  towed  on  the  rear 
wheels, don’t 
go more  than 35 mph (56 km/h)  or farther  than 50 miles 
(80 km) or your transmission will be damaged. If these limits must  be 
exceeded, then the rear wheels  have to be  supported  on a dolly. 
If  your  vehicle has 
the four-wheel  drive option and the transfer  case is 
engaged,  a dolly must be used under the rear wheels  when towing from the 
front. 
5-9 ProCarManuals.com 

Whai to Use 
Refer to  the  Maintenance  Schedule to determine  what  kind of lubricant to 
use. See “Recommended  Fluids  and Lubricants”  in  the  Index. 
Four- Wheel Drive 
Most  lubricant  checks in this  section  also apply  to  four-wheel-drive 
vehicles. However,  they have two additional  systems that  need  lubrication. 
Transfer  Case 
When to Check  Lubricant 
Refer  to the  Maintenance  Schedule to determine  how  often  to check  the 
lubricant. 
See “Periodic  Maintenance  Inspections”  in  the  Index. 
How to Check  Lubricant 
What  to Use 
If the level is below 
the bottom  of  the  filler 
plug  hole,  you’ll 
need 
to  add  some lubricant. 
Add  enough  lubricant 
to  raise  the  level  to 
the 
bottom of the  filler 
plug  hole. 
Refer  to  the  Maintenance  Schedule 
to determine what  kind of lubricant to 
use.  See “Recommended  Fluids and Lubricants”  in  the  Index. 
6-34 
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Service  Replacement  Part  and  Filter 
Recommendations  -Gas  Engines 
Engine 
VIN 
Oil Filter 
Air Cleaner Filter 
PCV  Valve 
Spark  Plugs‘% 
Fuel Filter 
Radiator Cap 
5.7L 
K 
PF353‘ 
A348C 
cv774c 
.CR43TS 
GF48 1 
RC36 
$Four Wheel Drive  Vehicle  -use a 
PFS 1 oil filter 
*Use AC  copper-cored  resister  type spark  plugs 
Service  Replacement  Part  and  Filter 
Recommendations  -Diesel  Engines 
Engine 
VIN 
Oil  Filter 
Air Cleaner 
Fuel  Filter 
Surge  Tank Cap 6.5L 
S” 
PF3S 
A917C 
TP 
I 006 
RC33 
7.4L 
N 
PF35 
A348C 
cv774c 
.CR43TS 
GF48 
I 
RC36 
6.5L 
F” 
PF35 
A9  17C 
TP 
1006 
RC33 
*Heavy  Duty Emission Engine 
Air  Conditioning  Refrigerants 
Not  all  air conditioning refrigerants are  the same.  If the  air  conditioning 
system 
in your vehicle needs refrigerant,  be sure  the  proper  refrigerant is 
used. If you’re not sure, ask your GM dealer.  For additional information,  see 
your “Warranty  and Owner Assistance Information” booklet. 
Air  Conditioning  Refrigerant  Capacity 
TYPE 
Refrigerant R 134A 
Refrigerant 
R 134A 
QTY 
Front  A/C 3.0 lbs. (1.360  kg) 
Front and Rear A/C 
4.25 Ibs. (I .927 kg) 
6-83 
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Fuses and Circuit  Breakers 
NAME CIRCUITS PROTECTED 
Gages Turn-B/U 
EMC/Ign 
Inj. A 
Brake 
AC/Htr 
Ctsy Park 
LP 
P. Lps 
Stop/Haz. 
Wiper 
Radio  Acc/Ign. 
Acc/Batt. 
Crank 
4WD  DRL 
RR Wpr. 
TIC  Re1  Cruise Control, 
4 WD Display 
Illum. Rear  Window Defogger 
Timer,  Aux. Batt.  Relay Feed, 
Safety Belt Buzzer  Timer, 
Cluster Ign. Feed 
Back-up  Lamps, Turn Signals 
T.C.C.,  Air Diverter, E.S.C., 
E.G.R., E.C.M. Ign. R.W.A.L. 
Brake Switch 
Throttle  Body Injectors 
A.B.S. Cluster-Speed0 
H.V.A.C. 
4 WD, Aux. Batt. 
Relay 
Dome Lamp,  Ctsy. and Glove 
Box  Lps.  (TR-9),  Radio 
(Memory-Clock) 
FUSE CIRCUIT 
BREAKER 
20 Amp 
15 Amp 
10 Amp 
10 Amp 
15 Amp 
25 Amp 
20 Amp 
Horn  Relay, 
Horn Feed, Park 20 Amp 
Lamps 
C49 SW Illum., Headlamp 
“On” 5 Amp 
Warning,  Radio Illum., 
H.V.A.C. 
Illum. 
Haz. Flasher, Seat Belt  Buzzer, 
Stop 
Lmps., A.B.S. Memory 
Windshield  Wiper,  Washer 
Radio Feed  Pwr.  Windows 
Door  Locks,  Rear Window 
Defogger 
Crank, Discreet 
Four Wheel Drive 
Daytime Running Lights 
Rear  Window  Wipermasher 
Cigar Lighter, Rear  Hatch 
Release 
15 Amp 
25 Amp 
10 Amp 
5 Amp 
25 Amp 
15 Amp 
25 Amp 
25 Amp 
30 Amp 
30 Amp 
*An inline fuse is used  for the underhood lamp 
Do  not use fuses  of  higher  amperage  than  those  recommended  above. 
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Lamp and Bulb Data 
LAMP OR BULB TRADE NO. 
HEADLAMPS 
2 Headlamp 
System 
Halogen 
(Opt.) 
4 Headlamp 
System 
Composite 
LAMP OR BULB 
EXTERIOR 
Front Marker Lamp 
Front Park 
and Turn Lamp 
Rear Parking Lamp 
Rear  Stop and  Turn Lamp 
Backup  Lamp 
Roof Marker Lamp" 
License Plate  Lamp 
Underhood Lamp 
Reel Lamp 
*Suburban Only  6052 
H6054  6052 
9005 
INTERIOR 
Dome Lamps 
Reading Lamps 
Roof Console Lamps 
Courtesy Lamp 
Heater 
or A/C  Control  Lamp 
Four Wheel Drive Indicator 
Four Wheel Drive Shift Lever 
Instrument  Panel  Compartment Lamp 
Ashtray  Lamp 
Sunshade 
Vanity Mirror 
POWER 
RATING  AT 
12.8V, WATTS 
55/65 
35/65 55/65 
65 
TRADE NO. 
194 
2357NA 
3057  3057 
3156 
194 194 
232  232 
211-2 
21 1-2 
I68 
1003 
194 
161 
194 
194 
194 
74 
i 
2 
2 
2 
2 
4 
2 
2 
2 
5 
2 
1 
1 
2 
4  2 
2 
1 
1 
1 
1 
1 
4 
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ProCarManuals.com 

If you are skilled  enough to  do some  work on your  vehicle, you will 
probably  want 
to get  the  service  information  GM publishes.  For  information 
on how to obtain  various  service publications  for your  vehicle,  see “Service 
Publications” 
in the  Index. You will  find a list  of  publications and  an order 
form 
in the  back of the book. 
Scheduled  Maintenance  Services 
This  part  tells you the maintenance services  that you should  have done and 
the times  you should  schedule  them.  Your GM dealer knows your  vehicle 
best  and  wants 
you to  be  happy  with  it. If you go to your  dealer  for your 
service  needs, you’ll  know  that  GM-trained  and  supported  service people 
will perform the work  using  genuine GM parts. 
These  schedules are  for vehicles  that: 
carry passengers  and cargo  within  the  recommended  limits. You will 
find  these limits 
on your  vehicle’s  Certification  Label. See “Loading 
Your  Vehicle” 
in the  Index. 
are  driven on regular  road  surfaces, and  within  legal  driving limits, as 
described in Section 4 “Your  Driving  and the Road.” 
are driven  off-road in the recommended  manner.  See “Off  Road 
Driving  With  Your  Four-wheel  Drive  Vehicle” 
in the  Index. 
use the recommended  fuel. See “Fuel” in the Index. 
Selecting  the  Proper  Maintenance  Services 
To find  the proper maintenance schedule for your  vehicle,  you  must  know 
two  things.  What engine  your  vehicle  has,  and 
how you use your  vehicle. 
Your  engine type  will  tell 
you which  chart to use,  and  your  driving 
conditions  will  tell 
you which schedule to  use. The charts are found  later in 
this section. 
Selecting  the  Proper  Maintenance  Chart 
Your  engine type (Gasoline  or Diesel)  and  its  emissions classification  (Light 
Duty  or Heavy  Duty  Emissions) will  tell 
you which maintenance chart  to 
use. Find your  Vehicle  Identification  Number (VIN), and  look  at  the  eighth 
character to see  what  your engine code 
is. Then use the following Engine 
Emissions Classifications tables 
to find  your  emissions classification. 
0 Your VIN is on the  plate on the top  left  corner of your  instrument 
panel,  the  Certification  Label  and 
on the Service Parts  Identification 
Label.  See “Vehicle  Identification  Number”  in  the  Index. 
If your  engine  has  more  than one emissions classification, look at  your 
Certification  Label to see  what your Gross  Vehicle  Weight  Rating 
(GVWR) 
is. See “Loading  Your  Vehicle” in the Index. 
7-3 ProCarManuals.com 

Lap  and  Shoulder  Belts  Condition  and  Operation - Inspect  belt system, 
including  webbing,  buckles,  latch  plates,  retractors,  guide  loops\
  and 
anchors. Have 
a belt  assembly  replaced if the webbing  has  been  cut  or 
otherwise damaged. 
Body Lubrication  Service - Lubricate  all  body  door hinges  with  engine 
oil. 
Also lubricate the tailgate,  tailgate  handle  pivot  points,  and  tailgate 
mounted  spare tire  carrier  (if  equipped). Lubricate  the  body  hood, 
fuel door 
and  rear  compartment  hinges, latches and  locks  including  interior  glove box 
and  console doors,  and  any folding seat  hardware.  Lubricate  the  hood  safety 
lever  pivot  and  prop rod  pivot.  More  frequent  lubrication  may  be  required 
when  exposed  to 
a corrosive  environment. 
Periodic  Maintenance  Inspections - Listed  below  are inspections  and 
services  which  should  be  performed  at  least  twice 
a year (for instance  each 
spring  or fall).  You should  let  your 
GM dealer’s  service  department  or other 
qualified  service center  do 
these jobs. Make sure  any  necessary  repairs  are 
completed  at once. 
Steering  and  Suspension  Inspection? - Inspect  front  and  rear suspension 
and  steering  system  for  damaged, loose or missing  parts,  signs 
of wear  or 
lack  of  lubrication.  Inspect  power  steering  lines  and  hoses  for proper 
hook-up,  binding,  leaks,  cracks,  chafing, etc. Lubricate the  steering  linkage. 
Accelerator  Control  System - On gasoline  engines,  lubricate the pivot  at 
the 
TBI throttle  lever  stud  with  engine oil. Do not oil any  accelerator  or 
cruise  control  cables. Replace  any  cables that  have  high  effort  or excessive 
wear. 
Exhaust  System  Inspection - Inspect  the  complete system  including  the 
three-way  catalytic converter.  Inspect  the  body  near 
the exhaust  system. 
Look  for broken,  damaged,  missing or out-of-position  parts, 
as well as, 
open  seams, holes, loose  connections  or other conditions  which  could cause 
a  heat  buildup 
in the  floor  pan or could let exhaust  fumes seep into the 
passenger  compartments. 
Drive  Axle  Service? - Check  readfront  axle tluid  level  and  add as needed, 
Check constant  velocity joints and axle seals  for leaking. 
Transfer  Case  (Four-wheel  Drive)  Inspection+ - Every 12 months  or at 
oil change  intervals,  check  front axle and transfer case  and  add  lubricant 
when  necessary.  Oil  the  control  lever  pivot  point  and  all  exposed control 
linkage.  Check 
vent hose  at  transfer  case for kinks  and  proper  installation. 
More frequent  lubrication  may  be  required  on  heavy-duty or off-road  use. 
?A fluid  loss in these  systems  may indicate  a problem.  Have  them  inspected 
and  repaired  at  once. 
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