Fuse/Circuit Breaker Usage
5
6
7
8
9
10
11
12
13
14
1s
Oxygen Sensor Heater, Exhaust Gas
Recirculation, Cam Sensor, CANN.
Purge. Canister Vent Solenoid. Mass
Airflow Sensor,
Cam Shaft Sensor
Blower Motor, Temperature Door Motor.
HI Blower Relay Coil
Power Auxiliary Outlets, Assembly
Line Diagnostic
Link
Rear Window Defogger
PCM/VCM Battery. Fuel Pump
PCM/VCM Ignition, Injectors. Crank
Sensor. Coil Driver Module
Radio, Inside Rearview Mirror Map
Lamp, Overhead Console Reading
Lamps. Rear Wiper, Rear Washer.
Overhead Console Display
Anti-Lock Braking System. VCM
IGN-3
Clock. Radio Battery, CD Player
A/C Compressor Battery Feed
Daytime Running Lamps, Fog
Lamps,
Fog Lamp Relay
17
18
19
20
21
22
23
Fuse/Circuit
Breaker Usage
16 Turn Signals and Back-up Lamps,
Brake-Transmission Shift Interlock
Solenoid
Windshield Washer, Windshield Wiper Motor
Not Used
Electric Shift Transfer Case
Crank Relay,
Air Bag Module
Not Used
Air Bag Module
Cluster Hlumination, Radio
Illu~nination. He.ater Lamp.
4WD
Illumination, Chime Module, Fog
Lam13 Illumination, Rear Wiper
Switch Illumination, Rear Defogger
Switch Illumination, Liftglass
Release Switch Illumination,
Overhead Console Illutnination
PRNDL Power. 4L60E Automatic
Transmission
24
6-61
Short Trip/City Maintenance Schedule
The services shown in this schedule LIP to 100.000 miles
( I66 000 km) should be performed after 100,000 miles
( 166 000 km) at the same intervals. The services shown
at 150.000 miles (240
000 km) should be performed at
the
same interval after 150.000 miles (240 000 km).
See "Owner Checks and Services" and "Periodic
Maintenance Inspections" following.
Footnotes
-f The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not
nullify
the emission warranty or limit recall liability prior to the
completion
of the vehicle's useful life. We. however,
urge that
all recommended maintenance services be
performed at the indicated intervals and
the maintenance
be recorded.
## Lubricate the front suspension. ball joints. steering
linkage and transfer case shift linkage. parking brake
cable guides, propshaft splines. Lulivel-sal joints and
brake
pedal springs.
+ A good time to check your brakes is during tire
rotation. See "Brake System Inspection" under "Periodic
Maintenance Inspection"
in Part C of this schedule.
'i::k Drive axle service (see "Recommended Fluids and
Lubricants"
in the Index for proper lubricant to use):
0
0
0
Locking Differential -- Drain fluid and refill at first
engine oil change. At subsequent oil changes, check
fluid level and add fluid as needed.
If driving in
dusty areas or towing a trailer, drain tluid and refil
every 15,000 miles
(25 000 km).
Standard Differential
-- Check fluid level and add
tluid
as needed at every oil change. If driving in
dusty areas or towing a trailer, drain fluid and refil
every
15,000 miles (25 000 km).
More frequent lubrication may be required
for
heavy-duty or off-road use.
1
1
7-7
I Long Trip/Highway Maintenance Schedule
The services shown in this schedule up to 100,000 miles
( I66 000 km) should be performed after 100,000 miles
( 166 000 km) at the same intervals. The services shown
at
150,000 miles (240 000 km) should be performed at
the same interval after
150,000 miles (240 000 km).
See "Owner Checks and Services" and "Periodic
Maintenance Inspections'' following.
Footnotes
3' The U.S. Environmental Protection Agency 01- the
California Air Resources Board has determined that the
failure to perform this maintenance item
will not nullify
the emission warranty or limit recall liability prior to the
completion
of the vehicle's useful life. We, however,
urge that
all recommended maintenance services be
performed at the indicated intervals and the maintenance
be recorded.
# Lubricate Ihe front suspension, ball joints, steering
linkage and transfer case
shift linkage, parking brake
cable guides, propshaft splines, universal
joints and
brake pedal springs.
+ A good time to check your brakes is during tire
rotation. See "Brake System Inspection'' under "Periodic
Maintenance Inspections"
in Part C of this schedule.
Drive axle service (see "Recommended Fluids and
Lubricants"
in the Index for proper lubricant to use):
0 Locking Differential -- Drain fluid and refill at first
engine oil change.
At subsequent oil changes, check
fluid level and
add fluid as needed.
0 Standard Differential -- Check fluid level and add
fluid as needed at every engine
oil change.
More frequent lubrication may be required for
heavy-duty or off-road use.
7-30
At Least Twice a Year Automatic Transmission Check
Check the transmission fluid level: add if needed. See
"Automatic Transmission"
in the Index. A fluid loss
may indicate
a problem. Check the system and repair
if needed.
Restraint System Check
Make sure the safety belt reminder light and all your
belts. buckles, latch plates, retractors and anchorages are
working properly. Look
for any other loose or damaged
safety belt system parts.
If you see anything that might
keep
a safety belt system from doing its .job, have it
repaired. Have any torn or frayed safety belts replaced.
Also
look. for any c.)pened or broken air bag covers, and
have them repaired or replaced. (The air
bag system
does not need regular maintenance.)
Wiper Blade Check
Inspect wiper blades for ~vear or cracking. Replace blade
inserts that appear worn or damaged or that streak or
miss areas of the windshield.
Also see "Wiper Blades.
Cleaning"
in the Index.
Manual Transmission Check
Check the transmission fluid level; add if needed. See
"Manual Transmission"
in the Index. Check for leaks.
A fluid loss ITI~~ indicate a problem. Have the system
inspected and repaired
if needed.
Hydraulic Clutch System Check
Check the fluid level in the clutch reservoir. See
"Hydraulic Clutch Fluid" in the Index. A fluid loss in
this system could indicate a problem. Have the system
inspected and repaired at once.
At Least Once a Year
Key Lock Cylinders Service
Lubricate the key lock cylinders with the lubricant
specified
in Part D.
Body Lubrication Service
Lubricate all body door and fuel door hinges, rear
compartment hinges, latches and locks including the
moving seat hardware. Lubricate the hood safety lever
pivot and prop rod pivot. Part
D tells you what to use.
More frequent lubrication
may be required when
exposed to a corrosive environment.
t (rlove box, console doors and the body hood and any
7-47
Starter Switch Check
CAUTION:
-- - !
When you are doing this check, the vehicle could
nlove suddenly.
If it does, you or others could be
injured.
Follow the steps below. Brake-Transmission Shift Interlock (BTSI)
Check
(Automatic Transmission)
1. Before you start, be sure you have enough room
around the vehicle.
2. Firmly apply both the parking brake (see "Parking
B~-ake"
in the Index if necessary) and the regular lmke.
NOTE: Do not use the accelerator pedal. and be
ready
to turn off the engine immediately if it skirts.
3. On automatic transmission vehicles. try to start the
engine
in each gear. The starter should work only in
PARK (P) or NEUTRAL (N). If the starter works in
any other position, your vehicle needs service.
On lnanual transmission vehicles, put the
shift lcvcr
in NEUTRAL (N), push the cl~ltch down half\1;ay
and try to start the engine. The starter should work
only when the clutch
is pushed down all the way to
the floor. If the starter works when the clutch isn.1
pushed all the way down. your vehicle needs service.
I A CAUTI-N:
- --
When you are doing this check, the vehicle could
move suddenly.
If it does, you or others could be
injured.
Follow the steps below.
1.
2.
3.
Before you start, be sure yo~l have enough room
around the vehicle.
It should be parked on a
level s~~ri-~xe,
Firmly apply the parking brake (see "Parking Brake"
in the Index if necessary).
NOTE: Be ready to apply the regular brake
immediately
if the vehicle begins to move.
With thc engine off. turn the key to
the RUN
position, but don't start the engine. Without applying
the regular brake, try to move the shift lever out of
PARK
(P) with normal effort. If the shift lever
moves
out of PARK (P). your vehicle's BTSI
ntxds service.
7-48
Ignition Transmission Lock Check While parked, and with
the parking brake set, try to turn
the ignition key to LOCK
in ex11 shift lever position.
0 With an automatic transmission. the key should turn
to LOCK only when the shift lever is in PARK (P).
With a manual transmission, the key should turn to
LOCK only when the shift lever is in REVERSE (R).
On vehicles with a key release button, try to turn the key
to LOCK witl~out pressing the button. The key should
turn
to LOCK only when you press the key button.
On all ve.hicles, the key should come out only in LOCK. Parking Brake and Automatic Transmission
PARK
(P) Mechanism Check
CAUTION:
--
When you are doing this check, your vehicle
could begin to move.
You or others could be
injured and property could be damaged. Make
sure there
is room in front of your vehicle in case
it begins to roll. Be ready to apply the regular
brake at once should the vehicle begin
to move.
Park
on a fairly steep hill. with the vehicle facing
downhill. Keeping your
foot on the regular brake. set the
parki ng brake.
e To check the parking brake's holding ability:
With the engine running and transmission
in
NEUTRAL (N). slowly remove foot pressure from
the regular brake pedal. Do this until the vehicle is
held by the parking brake only.
e To check the PARK (P) meohanisrn's holding ability:
With the engine running, shift to PARK (P). Then
release
al I brakes.
7-49
USAGE
Manual
Transmission
Automatic
Transmission
Key Lock
Cylinders
Chassis
Lubrication
Front Wheel
Bearings
Differential,
Front
and Rear
Axle
FLUID/LUBRICANT
Synchromesh Transmission
Fluid (GM Part
No. 12345349
or equivalent).
DEXRON@-I11 Automatic
Transmission Fluid.
Multi-Pu ose lubricant, Superlube
I% (GM Part
No. 1234624 1 or equivalent).
Chassis lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements
of NLGI
# 2, Category LB
or
GC -LB .
Wheel bearing lubricant meeting
requirements
of NLGI # 2,
Category
GC or GC-LB (GM Part
No. 105 1344 or equivalent).
Axle Lubricant (GM Part
No. 1052271) or SAE 80W-90
GL-5 Gear Lubricant.
USAGE
Transfer Case
Windshield
Washer Solvent
Transfer
Case
Shift Lever,
Propeller Shaft
Slip Splines and
Universal Joints
Clutch Pushrod
to Clutch
Fork
Joint
Constant
Velocity Universal Joint
FLUIDLUBRICANT
DEXR0N'-111 Automatic
Transmission
Fluid.
GM Optikleen@ Washer
Solvent
(GM Part No. 105 15 15 j
or equivalent.
Chassis lubricant (GM Part
No. 12377985 or equivalent)
or
lubricant meeting requirements
of NLGI # 2, Category LB
OF GC-LB.
Chassis lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements
of NLGI
## 2, Category LB
or GC-LB.
Chassis lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements
of NLGI ## 2, Category LB
01- GC-LB.
7-53
Roadside Assistance
GMC's Roadside Assistance provides stranded owners
with over-the-phone roadside repairs, location
of the
nearest
GMC dealer or the following special services:
FlLlt Tiw Chmg~?: installation of spare tire will be
covered at
no charge (customer is responsible for repair
or replacement
of tire).
Fl.{t?I Dt~liwql: Delivery of enough fuel for the customer
to get to the nearest service station
(up to $4.00) will
be covered.
Juq? Sturt: 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 10 miles (1 6 km).
Et7.2et-go12~~ finl?ir.zg Scrvice: Towing to the nearest
GMC deaier for warranty related disablements will
be covered.