Page 249 of 354
Downloaded from www.Manualslib.com manuals search engine Composite Headlamps
1. Open the hood.
2. Remove the black
protective caps
from the removal
pins at the
top of
the radiator
support. Use a
hex socket
to
unscrew pins.
3. Pull the headlamp
lens assembly
out. (Some
vehicles may
have side by side
bulbs.)
4. Unplug the
electrical
connector.
5. Turn the bulb
counterclockwise
to remove it.
6-32
Page 250 of 354
Downloaded from www.Manualslib.com manuals search engine 6. Put the new bulb
into the headlamp
lens assembly
and turn
it
clockwise until it
is tight.
7. Plug in the
electrical
connector.
8. Put the headlamp lens assembly back into the vehicle. Install and
tighten the screws.
Front Parlcrrurn Signal Lamps (Composite and
Sealed Beam)
If you have fog lamps, the fog lamp bracket must be removed before you
can replace the front park/turn signal lamps.
,. ,.: :; . I. Reach under the
bumper and
behind the
parkinghrn
signal lamp
assembly.
2. Push the tab on
the socket, turn
the socket
counterclockwise
and
pull it out.
6-33
Page 251 of 354
Downloaded from www.Manualslib.com manuals search engine 3. Holding the base
of the bulb, pull
the bulb straight out of the socket.
4. Push the new bulb into the socket until it clicks.
5. Put the socket back into the parkinghum signal lamp assembly and turn
it clockwise until it locks in place.
Rear Lamps
1. Open the tailgate.
2. Remove the
screws from the
lamp assembly
near the tailgate
latch. Pull out the assembly.
3. Pull the assembly away from the
pickup side
panel.
4. Turn the socket
counterclockwise to remove it.
Push the tab in
while you turn
the socket.
6-34
Page 252 of 354
Downloaded from www.Manualslib.com manuals search engine 5. Pull the bulb out.
6. Push the new bulb into the socket.
7. Put the socket into the assembly and turn the socket clockwise until it
locks in place.
8. Replace the assembly. Install and tighten the screws.
9. Close the tailgate.
Center High Mounted Stop Lamp (CHMSL)
3. Remove the
CHMSL bulb.
4. Install the new
CHMSL bulb.
5. Replace the
CHMSL lens.
Install and tighten
the screws.
6-35
Page 277 of 354

Downloaded from www.Manualslib.com manuals search engine Headlamps
The headlamp wiring is protected by a circuit breaker in the light switch. An
electrical overload will cause the lights to go on and
off, or in some cases to
remain off. If this happens, have your headlamp wiring checked right away.
Windshield Wipers
The windshield wiper motor is protected by a circuit breaker and a fuse. If
the motor overheats due to heavy snow, etc., the wiper will stop until the
motor cools. If the overload is caused by some electrical problem and not
snow, etc., be sure to get it fixed.
Power Windows and Other Power Options
Circuit breakers in the fuse panel protect the power windows and other
power accessories. When the current load is too heavy, the circuit breaker
opens and closes, protecting the circuit until the problem is fixed.
Trailer Wiring Harness
The optional seven-wire trailer wiring harness is protected by an in-line
fuse in the battery feed wire. This fuse is near the junction block in the
front, driver’s side fender. See “Trailer Wiring Harness”
in the Features &
Controls section.
Fuse Block
. .. . .,
The fuse block is in
the instrument panel
on the driver’s side.
Remove the cover by
turning the fastener
counterclockwise.
Then you can remove
fuses with a fuse
extractor. Extra fuses
are provided in the
cover.
6-60
Page 278 of 354

Downloaded from www.Manualslib.com manuals search engine Be sure to use the
correct fuse.
Spare fuses are provided, however if you ever have a problem on the road
and don’t have a spare fuse, you
can “borrow” one of the correct value. Just
pick some feature of your vehicle that you can get along without-like the
radio or cigarette lighter-and use its fuse, if it is of the value you need.
Replace it as soon as you
can. See “Fuses and Circuit Breakers” in this
section.
To reinstall the fuse panel cover, push in and turn the fastener clockwise.
Capacities and Specification Charts
Replacement Parts
Replacement part numbers listed in this section are based on the latest
information available at the time of printing, and are subject to change. If a
part listed in this manual is not the same as the part used in your vehicle
when
it was built, or if you have any questions, please contact your GM
truck dealer.
Engine Ideniificafion
Engine
Type VIN Code
Fuel Systems Emissions 2.2L
L4
4
MPI*
LD
4.3L
V6
Z
m1* *
LD
4.3L
V6
W
CPI* * *
LD
*Multi-Port Fuel Injection
**Throttle-Body Fuel Injection
***Central-Port Fuel Injection
6-61
Page 285 of 354
Downloaded from www.Manualslib.com manuals search engine NAME
RADIO
RDO BATT
ILLUM
DRL
TURN-B/U
CIRCUITS PROTECTED
Radio, Inside Rearview Mirror Map Lamp, Overhead
Console Reading Lamps, Rear Wiper, Rear Washer,
Overhead Console Display
Clock, Radio Battery, CD Player
Cluster Illumination, Ash Tray Lamp, Radio
Illumination, Heater Lamp, Four-wheel Drive
Illumination, Chime Module, Fog Lamp Illumination,
Rear Wiper Switch, Rear Defog Switch Illumination,
Lift Glass Release Switch Illumination, Overhead
Console Illumination
Daytime Running Lamps
Turn Signal and Back-up Lamps
6-68
Page 345 of 354

Downloaded from www.Manualslib.com manuals search engine Break.1n. New Vehicle ............................................ 2-9
Bulb Replacement
............................................... 6-30
Composite Headlamps
......................................... 6-32
Halogen Bulb
................................................ 6-31
Replacement Chart ............................................ 6-63
Sealed Beam Headlamps
........................................ 6-30
Center
High Mounted Stop Lamp (CHMSL)
........................ 6-35
Front Park Turn Signal Lamps
................................... 6-33
RearLamps .................................................. 6-34
Capacities and Specification
............ ....................... 6-61
CarbonMonoxide
.......................................... 2-26, 4-34
Care of Your Cassette Tape Player (See “Audio Systems”)
Cassette Tape Player System (See “Audio Systems”)
Catalytic Converter
.............................................. 6-39
CertificatiodTire Label
........................................... 4-36
Changing
a Flat Tire .............................................. 5-19
Chemical Paint Spotting
........................................... 6-55
Cigarette LightedAshtrays
......................................... 2-49
Child
Restraints (See “Safety Belts”)
Center High Mounted Stop Lamp (CHMSL) (See “Lamps“)
Circuit Breakers (See “Fuses and Circuit Breakers”)
Cleaning Fabric Protection
.............................................. 6-50
Finishcare
.................................................. 6-53
Glass ....................................................... 6-52
InsideofVehicle
.............................................. 6-48
Instrumentpanel, Top .......................................... 6-51
Outsideofvehicle
............................................. 6-52
Tires
....................................................... 6-54
VinylorLeather
.............................................. 6-51
Wheels
........................................ ........ 6-53
Special
Problems
.............................................. 6-50
Weatherstrips ................................................. 6-52
Audio System with Compact Disc (CD)
............................. 3-5
Clock, Setting
the
Audio System without
a Compact Disc (CD) ......................... 3-5
Comfort Controls
................................................. 3-1
Compact Disc (CD) System (See “Audio Systems”)
Control
of a Vehicle ........................................... 4-4
Coolant (See “Engine”)
Cooling System Capacity
.......................................... 6-62
Courtesy Transportation
............................................ 8-7
Crankcase Capacity .............................................. 6-62
Cruise Control (Option)
........................................... 2-38
Passing Another Vehicle
........................................ 2-41
To Erase Speed Memory
........................................ 2-42
To Increase Speed
............................................. 2-40
OnHills
..................................................... 2-42
ToGetOutOf
................................................ 2-42
ToReduceSpeed
.............................................. 2-41
ToResume .................................................. 2-40
ToSet ...................................................... 2-39
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