service PONTIAC G8 2008 Repair Manual

Bulb Replacement
For the proper type of replacement
bulbs, seeReplacement Bulbs
on page 9-32.
For any bulb changing procedure
not listed in this section, contact
your dealer/retailer.
Halogen Bulbs
{CAUTION
Halogen bulbs have
pressurized gas inside and can
burst if you drop or scratch the
bulb. You or others could be
injured. Be sure to read and
follow the instructions on the
bulb package.
Headlamps and Parking
Lamps
To replace one of these bulbs:
If the front turn signal lamp
or parking lamp needs to be
changed, see your dealer/retailer.
A. Front Turn Signal Lamp/
Parking Lamp
B. Low Beam Headlamp
C. High Beam Headlamp1. Open the hood. SeeHood
Release on page 9-5.
2. Remove the radiator support by
turning the head screws
counterclockwise and then
pulling them straight out.
3. For the passenger side pull up
on the coolant bottle ller neck
to remove it and place it to
one side.
Let the ller neck drain before
pulling it all the way out. Place a
clean towel over the opening
of the coolant bottle after
removing it.
Vehicle Service and Care 9-29
2008 - Pontiac G8 Owner Manual

4. For the driver side remove the
clip from the air cleaner/lter
cover. Move the cover to
the back, out of the way.5. Turn the dust cap
counterclockwise to remove.
6. Press the two prongs together on
the connector to remove the
wiring harness connector.7. Turn the bulb socket
counterclockwise and pull it
out to remove from the lamp
assembly.
8. Pull the old bulb straight out of
the bulb socket.
9. Push the new bulb straight into
the bulb socket until it clicks.
10. Reconnect the wiring harness
to the bulb socket.
11. Push the bulb socket into the
lamp assembly and turn it
clockwise to lock it into place.
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12. Turn the dust cap clockwise to
lock it into place.
13. For the driver side reinstall the
air cleaner/lter cover.
14. For the passenger side reinstall
the coolant bottle ller neck.
15. Reinstall the radiator support
screws.
Taillamps
A. Turn Signal Lamp
B. Stoplamp/Taillamp
C. Back-up LampTo replace one of these bulbs:
For any lamp not listed here, see
your dealer/retailer to replace.
1. Open the trunk. SeeTrunk on
page 2-10.
2. Raise the spare tire cover. See
Removing the Spare Tire and
Tools on page 9-72for more
information.
3. Turn the four convenience net
hooks securing the plastic
trunk trim counterclockwise.
4. Pull the trunk trim straight up to
remove.5. Turn the trunk lining securing
pins counterclockwise and
pull down at the same time to
remove.
6. Lower the spare tire cover.
7. Turn the bulb socket
counterclockwise to remove it
from the rear lamp housing.
8. Lightly press the bulb and turn it
counterclockwise to remove it
from the bulb holder.
Vehicle Service and Care 9-31
2008 - Pontiac G8 Owner Manual

9. Push the new bulb into the
socket and turn it clockwise
to lock it into place.
10. Push the bulb socket straight in
and turn it clockwise to lock it
into place.
11. Make sure the seals are applied
to the taillamp assembly and
screws.12. Raise the spare tire cover.
13. Turn the trunk lining securing
pins clockwise to lock into
place.
14. Return the plastic trunk trim to
its original location.
15. Reinstall the plastic
retaining pins.
Replacement Bulbs
Exterior LampBulb
Number
High-Beam
HeadlampH9
Low-Beam
HeadlampH11
Stoplamp/Taillamp P21/5W
Rear Turn
Signal LampPY21W
Back-up Lamp P21W
For replacement bulbs not listed
here, contact your dealer/retailer.
Electrical System
Add-On Electrical
Equipment
Notice:Do not add anything
electrical to your vehicle unless
you check with your
dealer/retailer rst. Some
electrical equipment can damage
your vehicle and the damage
would not be covered by your
warranty. Some add-on electrical
equipment can keep other
components from working as
they should.
Add-on equipment can drain your
vehicle’s battery, even if your vehicle
is not operating.
Your vehicle has an airbag system.
Before attempting to add anything
electrical to your vehicle, see
Servicing Your Airbag-Equipped
Vehicle on page 1-30.
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Headlamp Wiring
The headlamp wiring is protected by
fuses in the fuse block. An
electrical overload will cause the
lamps to turn off. If this happens,
have your headlamp wiring checked
right away.
Windshield Wiper Fuses
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, have it xed.
Power Windows and
Other Power Options
Circuit breakers in the fuse block
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 xed or goes away.
Instrument Panel Fuse
Block
The instrument panel fuse block is
located on the end of the
instrument panel, on the driver’s
side of the vehicle. To access
the fuses, open the fuse panel door
by pulling out.
To reinstall the door, push the door
back into its original location.
Vehicle Service and Care 9-33
2008 - Pontiac G8 Owner Manual

Fuses UsageF1 Airbag
F2 Trunk Release
F3 Door Locks
F4 Inadvertent
Power LED
F5 Courtesy/Turn
Signal Lamps/Front
Passenger Turn
Signal
F6 Rear and Side
Passenger Side
Turn Signal
F7 Spare
F8 Driver Side Turn
Signal
F9 Body Control
Module
F10 Stoplamps
F11 Interior Lamps
F12 Discrete Logic
Ignition Sensor/Theft
Deterrent System
F13 Rear Cigarette
Lighter
F14 Auxiliary Power
Instrument Panel Fuse Block - Fuse Puller Shown
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Fuses Usage
F15Outside Rearview
Mirrors
F16Sunroof/Automatic
Transmission
Shift Lock
F17 Sunroof
F18Automatic Occupant
Sensor
F19Driver Side
Heated Seat
F20Passenger Side
Heated Seat
F21Daytime Running
Lamps
F22Front Cigarette
Lighter
F23Steering Wheel
Controls
Backlighting
F24 Power Window
FUSE
PULLERFuse PullerCircuit
BreakersUsage
B1 Spare
B2 Power Windows
B3 Power Seats
B4 Spare
Relays Usage
R1Retain Accessory
Power 1
R2 Door Locks
R3Passenger Side
Door Lock
R4 Spare
R5 Trunk Release
R6 Driver Side Lock
R7Retain Accessory
Power 2
R8 Accessory
R9 Blower
R10 Spare
R11Daytime Running
Lamps
R12 Fuel Pump
Engine Compartment
Fuse Block
To open the fuse block cover,
remove the clip on cover.
Notice:Spilling liquid on any
electrical components on
your vehicle may damage it.
Always keep the covers on any
electrical component.
Vehicle Service and Care 9-35
2008 - Pontiac G8 Owner Manual

Fuses UsageFL1 Spare
FL2 Rear Defog
FL3 ABS Motor
FL4 Battery Main 3
FL5 Battery Main 1
FL6 Spare
FL7 Battery Main 2
FL8 Starter
FL9 HVAC Blower Motor
FL10 Fan 1 Engine
Cooling (Right)
FL11 Spare
FL12 Fan 2 Engine
Cooling (Left)
F1 Comm Enable
F2 HVAC Battery
F3 Back-up Lamp
F4 Fog Lamps (Front)
F5 ABS Valves
F6 Spare
F8 Horn
F9 Transmission
Control Module
Engine Compartment Fuse Block - Fuse Puller Shown
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Fuses Usage
F10Driver Side
Low-Beam
Headlamp
F11 Spare
F12Passenger Side
Low-Beam
Headlamp
F13 Spare
F14 Spare
F15 Front Wiper
F16 Spare
F17 Theft Horn
F18 Spare
F19Passenger Side
High-Beam
Headlamp
F20 Spare
F21 Windshield Washer
F22Canister Vent
Solenoid
F23Driver Side
High-Beam
Headlamp
F24 SpareFuses Usage
F25 Reverse Lockout
F26 Spare
F27 Spare
F28Engine Control
Module 1
F29 Even Coils/Injectors
F30 Spare
F31 Spare
F32 Emission 2
F33 Emission 1
F34 Spare
F35 Odd Coils/Injectors
F36 Spare
F37 HVAC Ignition
F38Heated
Seats/OnStar
®
Ignition
F39 Engine Ignition
F40 Airbags
F41 Spare
F42Passenger Side
Park Lamp
Fuses Usage
F43Driver Side
Park Lamp
FUSE
PULLERFuse Puller
Relays Usage
R1 Spare
R2 Comm Enable
R3 Spare
R4 Back-up Lamps
R5 Fog Lamp
R6Low-Beam
Headlamps
R7 Spare
R8 Defogger
R9Windshield
Wiper High
R10Windshield
Wiper Low
R11High-Beam
Headlamps
R12 Crank
R13 Powertrain
R14 Ignition Main
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2008 - Pontiac G8 Owner Manual

Relays Usage
R15 Windshield Wiper
R16 Horn
R17Fan 1 (Engine
Cooling)
R18 Parking Lamps
R19Fan 2 (Engine
Cooling)
R20Fan 3 (Engine
Cooling)
Rear Compartment Fuse
Block
The rear compartment fuse block is
located on the left side of the
trunk behind a cover.Use the fuse puller, to remove and
replace fuses.
Fuses Usage
F1 Spare
F2 Amplier
F3 XM Radio™
F4 Radio
F5Instrument/Display/
Remote Function
Actuator/Data Link
Connection
F6 Spare
F7 Spare
Fuses Usage
F8 OnStar™
F9 Spare
F10 ECM Battery
F11Regulated Voltage
Control Sensor
F12 Fuel Pump
Relays Usage
R1 Spare
R2 Spare
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2008 - Pontiac G8 Owner Manual