2002 Oldsmobile Silhouette headlamp

6-37 Headlamps
1. Open the hood.
2. Remove the front turn signal/parking lamp assembly.
See ªFront Turn Signal/Parking/Sidemarker Lampsº
later in this section.
3. Remove the two wing nuts located on top of the
headlamp assembly.
4. Unscrew the black retainer ring that holds the bulb
assembly in place.
5. Pull the bulb assembly straight up from the
lamp housing.
6. Unhook the electrical connector by lifting up the
blue tabs and pulling the bulb out.

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7. Install the new bulb through the black retainer ring
and into the electrical connector. Tighten the black
retainer ring in place. Push the bulb firmly enough
so that the blue tabs hook over the tab on the bulb.8. Carefully put the bulb assembly back into the lamp
housing. Be careful not to damage the bulb on the
headlamp aiming bar.

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9. Align the pins on the bottom of the headlamp
assembly with the holes in the lamp support
bracket while placing the holes in the assembly
over the bolts where the wing nuts attach.
10. Reinstall the wing nuts.
11. To reinstall the front turn signal/parking
lamp assembly See ªFront Turn
Signal/Parking/Sidemarker Lampsº next.
Front Turn Signal/Parking/Sidemarker Lamps
1. Open the hood.
2. Remove the thumbscrew attaching the front
turn signal/parking lamp assembly to the
headlamp assembly.
3. Pull the front turn signal/parking lamp assembly
away from the vehicle.
4. Unscrew the bulb socket from the lamp assembly by
pressing the tab while turning it counterclockwise.

6-41
7. To reinstall the lamp assembly, line up and insert the
tabs on the back of the assembly in the slots in the
fender. Engage the lower clip on the back of the
lamp assembly into the fender, keeping the upper
tab on the front turn signal/parking lamp assembly
inboard of the headlamp bracket tab.
8. To align the front turn signal/parking lamp assembly
with the headlamp assembly, lift up the front turn
signal/parking lamp assembly until the upper edge is
contacting the fender.
9. Fasten the front turn signal/parking lamp assembly
to the headlamp assembly with the thumbscrew
removed in Step 2.

6-52
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 ªChanging a Flat Tireº in the Index for
more information.
Used Replacement Wheels
CAUTION:
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 a crash. If you have to replace a wheel,
use a new GM original equipment wheel.
Tire Chains
NOTICE:
Use tire chains only where legal and only
when you must. Use only SAE Class ªSº type
chains that are the proper size for your tires.
Install them on the front tires and tighten them
as tightly as possible with the ends securely
fastened. Drive slowly and follow the chain
manufacturer's instructions. If you can hear
the chains contacting your vehicle, stop and
retighten them. If the contact continues,
slow down until it stops. Driving too fast or
spinning the wheels with chains on will damage
your vehicle.

6-63
Electrical System
Add-On Electrical Equipment
NOTICE:
Don't add anything electrical to your vehicle
unless you check with your dealer first. Some
electrical equipment can damage your vehicle
and the damage wouldn't be covered by your
warranty. Some add
-on electrical equipment
can keep other components from working as
they should.
Your vehicle has an air bag system. Before attempting to
add anything electrical to your vehicle, see ªServicing
Your Air Bag
-Equipped Vehicleº in the Index.
Headlamp Wiring
The headlamp wiring is protected by an internal circuit
breaker in the instrument panel fuse panel. 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 an internal
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, be sure to get it fixed.
Power Windows and Other Power Options
Circuit breakers in the instrument panel 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.

6-65
Circuit Breakers
Usage
HEADLAMP Daytime Running Lamps (DRL)
Control Module, Headlamp and
Instrument Panel Dimmer Switch
PWR SLD DR Power Sliding Door
PWR WDO Front Power Windows
PWR/HEATED
SEAT PSDSix6
-Way Power Seats and Rear
Side Door Actuator Motor
FRT HVAC
HI BLWRBlower Motor Hi Speed
Relay ModuleFuses Usage
SWC
BACKLIGHTSteering Wheel Radio Control
Switches (Illumination)
PCM/PASS
KEY/CLUSTERInstrument Cluster to
PRNDL Indicators
PWR MIRROR Power Remote Control
Mirror Switch
CRUISE Cruise Control Module,
Switch and Release Switch
Blank Not Used
PCM/CRANK Powertrain Control Module
(PCM), Ignition Crank
PASS KEY PASS
-Key
III System
PWR LOCK Power Door Locks
HTD MIRROR Heated Mirrors
RH T/LP Driver's Side Taillamp
RR FOG LP Fog Lamps
CIGAR/DIC/
APO FRTCigarette Lighter, DIC, Front
Auxiliary Power Outlets
T/SIG Turn Signal Switch
PWR
QTR VENTInterior Lamp and Multifunction
Switch (Power Vent Switch)

6-66
Fuses Usage
FRT/
WPR/WSHRWindshield Wiper/Washer Motor
and Switch
HAZARD Hazard Switch
RR PWR SCKT Rear Electric Accessory Plug
Housing
DRL Daytime Running Lamp
Control Module
LH T/LP Passenger's Side Taillamp
RR DEFOG/
HTD MIRRORRear Window Defogger Relay,
Heated Mirrors
ON STAR OnStar


SIR Inflatable Restraint Control Module
HVAC BLOWER Heater
-A/C Control
MALL
CLUSTERInstrument Cluster, Body Control
Module, Electronic Level Control
(ELC) Sensor and Relay
STOP LAMP Stoplamp Switch
CLUSTER BATT Module/Electronic Brake Control
Module/Electronic Brake Traction
Control Module (EBCM/EBTCM)Fuses Usage
ENHANCED
EVAP/AWDEvaporative Emissions (EVAP)
Canister Vent Solenoid Valve,
All
-Wheel Drive (AWD)
Blank Not Used
ELC/TRAILER ELC Air Compressor and
ELC Relay, Trailer Harness
CTSY LAMP Courtesy Lamp
IGN 1 BCM, Electronic Brake Control
Indicator Lamp Driver Module,
Instrument Panel Cluster, Rear
Side Door Actuator Control
Module, Rear Windows
RR HVAC
TEMP CONTRear HVAC
-A/C Control
RR WPR/WSHR Rear Window Wiper Motor,
Rear Window Wiper/Washer
and Multifunction Switch (Rear
Window Wiper/Washer Switch)
LH
HEADLP LOWPassenger's Side Low
Beam Headlamp
LH
HEADLP HIGHPassenger's Side High
Beam Headlamp