Page 296 of 402
Downloaded from www.Manualslib.com manuals search engine Headlamns
3.
Before replacing a headlamp that does not light, check
to make sure that the wiring connector
is securely
fastened to
it.
See "Replacement Bulbs" in the Index to check type of
headlamp you need to use before you begin to replace
the headlamp.
You must replace a headlamp with one
that is exactly the same.
1. Open the hood.
2. Locate the affected headlamp.
4.
5.
Press and turn the base a quarter-turn to the left
(counterclockwise). (See arrows).
Remove the socket with
the burned lamp.
Replace the bulb and insert the socket into
the headlamp.
Be careful
not to move the aiming screws when you
replace the headlamp. If the headlamp being replaced
was properly aimed, the new one will be also
if it is
properly installed.
6-38
Page 297 of 402
Downloaded from www.Manualslib.com manuals search engine If your vehicle is damaged in an accident and the
headlamp aim
seems to be affected, see your dealer.
Headlamps on damaged vehicles may require
recalibration
of the horizontal aim by your dealer.
Front Turn Signal
1. Using a screwdriver, remove the plastic screws from
the trap door under the vehicle. Move the trap door
out
of the way.
2. Turn and pull out the socket and the bulb.
3. Pull out the bulb.
4. Reverse the steps with a new bulb.
Center High-Mounted Stoplamp
8
Replacing the bulb:
1. Remove the two screws in the stoplamp lens.
2. Gently pull the assembly out and remove the bulb
from the back
of the assembly.
3. Reverse the steps with a new bulb.
6-39
Page 309 of 402

Downloaded from www.Manualslib.com manuals search engine I NOTICE:
~
The wrong wheel can also cause problems with
bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper
height, vehicle ground clearance and tire or tire
chain clearance to the body and chassis.
See “Changing a Flat Tire” in the Index for more
information.
Putting a used wheel on your vehicle is
dangerous. You can’t know how it’s been used or
how far it’s been driven. It could fail suddenly
and cause an accident.
If you have to replace a
wheel, use a new
GM original equipment wheel.
rire Chains
NOTICE:
If your vehicle has P235/55R16, P245/50ZR16 or
P275/40ZR17 size tires, don’t use tire chains.
They can damage your vehicle because there’s
not enough clearance.
Use another type of traction device only
if its
manufacturer recommends it for use on your
vehicle and tire size combination and road
conditions. Follow that manufacturer’s
instructions.
To help avoid damage to your
vehicle, drive slowly, readjust or remove the
device if it’s contacting your vehicle, and don’t
spin your wheels.
NOTICE: (Continued)
6-51
Page 321 of 402

Downloaded from www.Manualslib.com manuals search engine Headlamps
The headlamp wiring is protected by a circuit breaker.
An electrical overload will cause the lamps 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 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 or goes away.
Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected
from short circuits by a combination of fuses, circuit
breakers, and fusible thermal links in the wiring itself.
This greatly reduces the chance of fires caused by
electrical problems.
Look at the silver-colored band inside the
fuse. If the
band is broken or melted, replace the fuse. Be sure
you
replace a bad fuse with a new one of the correct size.
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 the size you need. Replace it as soon as
you can.
6-63
Page 323 of 402

Downloaded from www.Manualslib.com manuals search engine Fuse
TAIL LPS
HVAC
PWR ACCY
COURTESY GAUGES
AIR BAG
CIG/ACCY
Usage
Daytime Running Lamps (DRL)
Module, Headlamp Switch
HVAC Selector Switch, Rear
Defogger SwitcWTimer
Park Lamp Relay, Hatch Release
Relay, Power Mirror Switch,
Radio, Shock Sensor, Instrument
Cluster
Body Control Module (BCM)
Body Control Module (BCM),
Brake Switch Assembly (BTSI),
Instrument Cluster, Daytime
Running Lamps (DRL) Module,
Auxiliary Accessory Wire
Air Bag System, Dual
Pole
Arming Sensor
Cigarette Lighter, Data Link
Connector (DLC), Auxiliary
Accessory Wire
Fuse
DEFOGEEATS
WIPEWASH
WINDOWS
IP DIMMER
RADIO
Usage
Rear Defogger Switch/Timer,
Power Seats
Wiper Motor Assembly,
Wipermasher Switch
Power Windows Switch (RH, LH),
Express Down Module,
Convertible Top Switch
Door Illumination Lamp
(LH,
RH), Headlamp Switch, Fog
Lamp Switch, Instrument Cluster,
HVAC Control Assembly, PRNDL
Illumination Lamp, Ashtray
Lamp, Radio, Steering Wheel
Controls-Radio, Rear Window
Defogger Switch/Timer, Traction
Control (ASR) Second Gear Start Switch
Body Control Module (BCM),
Radio, Amplifier, Steering Wheel
Controls-Radio
6-65
Page 325 of 402
Downloaded from www.Manualslib.com manuals search engine Fuse
LH HDLP
RH HDLP
HORN
Usage
Headlamp Door and Module
Headlamp Door and Module
Horn Relay
ABS BAT-1 Anti-Lock Brake System Module
H/L DR HORN Horn and Headlamp Doors
ABS BAT-2 Anti-Lock Brake and Traction
Control System
Cooling Fan Relays
COOL
FAN
Relay
FOG LAMP
HORN COOLING FAN
#3
COOLING FAN #2
COOLING FAN #1
on0
on0
INJ INJ ENG SEN
STRTR ABS IGN PCM IGN
ENG CTRL A/C CRUISE
z
15305530 A
FRC 2
Fuse
INJ
INJ
Fuse and Relay Center 2
Usage
Fuel Injectors (Not Used for V6)
(LH Injectors for V8 and
Ignition Module)
Fuel Injectors (All for
V6)
(LH Injectors for V8 and
Ignition Module)
6-67
Page 327 of 402

Downloaded from www.Manualslib.com manuals search engine Replacement Bulbs
Back-up ............................... 3155
Center High-Mounted Stoplamp
............. 92 1
Front Parking and Turn Signal
............. 3157K
Headlamp (Low-Beam)
................... 9006
Headlamp (High-Beam) .................. 9005
Sidemarker
.............................. 194
Tail Only
............................... 194
Tail/Stop/Turn
.......................... 3057
Capacities and Specifications
Engine
Type VIN Engine Code
K ...................... V6
VIN Engine Code
G ...................... V8
Fuel Delivery .................... Fuel Injection Valve
Arrangement
.................... In-Head
Piston Displacement
VIN Engine Code
K ......... 23 1 CID (3791 cc)
VIN Engine Code
G ......... 350 CID (5735 cc)
Firing Order
VIN Engine Code
K .............. 1-6-5-4-3-2
VIN Engine Code
G ........... 1-8-7-2-6-5-4-3
Wheel Nut Torque
........... 100 lb-ft (140 Nnm)
Thermostat Temperature
Specification
................... 180°F (82°C)
Windshield Wiper Blade Replacement
Type
................................. hook
Length
.................... 24 inches (610 cm)
Page 390 of 402

Downloaded from www.Manualslib.com manuals search engine Headlamps .................................... 2-50
Bulb Replacement
............................ 6-38
High/Low Beamchanger
...................... 2-46
OnReminder
................................ 2-50
Wiring
..................................... 6-63
Hearing Impaired. Customer Assistance
.............. 8-4
Heating
........................................ 3-4
High-Beam Headlamps
.......................... 2-46
Highway Hypnosis
.............................. 4-22
Hill and Mountain Roads
......................... 4-23
Hitches. Trailer
................................. 4-33
Hood Checking Things Under
......................... 6-8
Release
...................................... 6-9
Horn
......................................... 2-44
Hydraulic Clutch
............................... 6-25
Hydraulic Clutch System Check
................... 7-33
Hydroplaning
.................................. 4- 18
Ignition Positions .............................. 2-25
Inflation. Tire
.................................. 6-44
Inside Daymight Rearview Mirror ................. 2-54
Inspections
.................................... 7-36
Brakesystem
................................ 7-36
Engine Cooling System
........................ 7-36
Exhaust Systems
............................. 7-36
RearAxle
................................... 7-36
Steering
.................................... 7-36
Suspension
.................................. 7-36 Throttle System
.............................. 7-36
Instrument Panel
............................... 2-72
Brightness Control
............................ 2-52
Cleaning
.................................... 6-55
Cluster
..................................... 2-74
Interior Lamps
................................. 2-52
Jack. Tire
.................................... 5-29
Jump Starting
................................... 5-3
Key Lock Cylinders Service
..................... 7-33
Key Release Button
............................. 2-26
Keyless Entry
................................... 2-7
Keyless Entry Verification
........................ 2-21
Keys
.......................................... 2-2
Labels Certification
................................. 4-29
Service Parts Identification
..................... 6-62
Tire-Loading Information
...................... 4-28
Vehicle Identification Number
................... 6-62
Lamps
........................................ 2-50
Courtesy
.................................... 2-52
Interior
..................................... 2-52
OnReminder
................................ 2-50
Last Door Closed Locking Feature
.................. 2-6
Latches. Front Seatback
........................... 1-5
Last Door Closed Locking
.................... 2-6. 2-21
Leaving
Your Vehicle ............................. 2-6
9-6