service SATURN ASTRA 2008 Repair Manual

2. Turn the bulb socket
counterclockwise and pull
straight out.
3. Turn bulb counterclockwise
and remove.
4. Install new bulb.
5. Reverse Steps 2 through 4 to
reinstall.
Taillamps
(Five-Door Hatchback)
A. Backup Lamp
B. Taillamp
C. Taillamp/Stoplamp/Turn
Signal LampTo replace one of these bulbs:
1. Open the liftgate.
2. To replace the bulbs on the
driver side, turn both locks
and remove the cover.
To replace the bulbs on the
passenger side, turn the lock
clockwise and remove the cover.
3. Detach the plug connector
from the bulb assembly.
Vehicle Service and Care 9-29
ProCarManuals.com

4. Turn the nuts counterclockwise
and hold the outside of taillamp
assembly.
5. Pull the taillamp assembly
straight out.
6. Remove the three nuts.
7. Press on the tabs on the outside
of bulb assembly and remove the
bulb assembly.
8. Remove the bulb from the bulb
assembly.9. Install a new bulb without
touching the glass.
10. Reinstall the bulb assembly in
taillamp assembly.
11. Make sure the seals are applied
to the taillamp assembly and
screws.
12. Insert the taillamp assembly
into the body.
13. Reinstall the three nuts.
14. Attach the plug connector to the
bulb assembly.
Taillamps
(Three-Door Hatchback)
A. Backup Lamp
B. Taillamp
C. Taillamp/Stoplamp/Turn
Signal Lamp
9-30 Vehicle Service and Care
ProCarManuals.com

To replace one of these bulbs:
1. Open the liftgate. SeeLiftgate on
page 2-6for more information.
2. Detach the plug connector from
the bulb assembly.
3. Turn the nuts counterclockwise
and hold the outside of taillamp
assembly.
4. Pull the taillamp assembly
straight out.5. Remove the seal.
6. Press on the tabs on outside of
bulb assembly and remove the
bulb assembly.
7. Remove the bulb from the bulb
assembly.
8. Install a new bulb without
touching the glass.
9. Reinstall the bulb assembly in
taillamp assembly.10. Make sure the seals are applied
to the taillamp assembly and
screws.
11. Insert the taillamp assembly
into the body.
12. Reinstall the three nuts.
13. Attach the plug connector to the
bulb assembly.
Vehicle Service and Care 9-31
ProCarManuals.com

License Plate Lamp
To replace one of these bulbs:
1. Push tab in and pull down on it to
remove the license plate lamp.2. Turn and pull the license plate
lamp toward you through the
opening.3. Turn the bulb socket
counterclockwise and pull the
bulb straight out of the socket.
4. Install the new bulb.
5. Reverse Steps 1 through 3 to
reinstall the license plate lamp.
9-32 Vehicle Service and Care
ProCarManuals.com

Replacement Bulbs
Exterior LampBulb
Number
Front Turn
Signal Lamp3157 NAK
License Plate
LampW5W
Parking Lamp 4157K
Taillamp W21
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 1-34.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.
Vehicle Service and Care 9-33
ProCarManuals.com

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.
Fuses
The wiring circuits in your vehicle
are protected from short circuits by a
combination of fuses and circuit
breakers. This greatly reduces the
chance of damage 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
to replace a bad fuse with a new one
of the identical size and rating.
There are two fuse blocks in
your vehicle: one in the engine
compartment and one in the trunk.
There is a fuse puller located
on the rear compartment fuse block.
SeeRear Compartment Fuse
Block on page 9-36. It can be used
to easily remove fuses from the
fuse block.
Engine Compartment
Fuse Block
The engine compartment fuse block
is located in the front left side of
the engine compartment.Engine
Compartment Overview on
page 9-6.
To open the fuse block cover,
insert a tool into the latch and turn.
Pull up on the cover to remove.
Notice:Spilling liquid on any
electrical components on
your vehicle may damage it.
Always keep the covers on any
electrical component.
9-34 Vehicle Service and Care
ProCarManuals.com

Fuses Usage1 Antilock Brake
System (ABS) Valves
2 ABS PumpFuses Usage
4 Climate Control
System (Ignition)
5 Engine Cooling
Fan (AT and AC only)Fuses Usage
6 Engine Cooling Fan
7 Windshield & Liftgate
Glass Washer Motor
Vehicle Service and Care 9-35
ProCarManuals.com

Fuses Usage
8 Horn
10 Door Locks
13 Foglamps
14Windshield Wipers
(high speed)
15Windshield Wipers
(low speed)
16Antilock Brake System,
Brake Lamp Switch
17 Vacuum Pump
18 Starter
20 Air Conditioning Clutch
21Engine Control
Module (ECM)
(Main Relay)
22 ECM (Battery)
24 Fuel Pump/InjectorsFuses Usage
26ECM (Sensor and
Actuators)
27 Power Steering
28Automatic
Transmission (Battery)
29Automatic
Transmission (Ignition)
30 ECM (Ignition)
32 Brake Switch
34Steering Column
Module
35 Radio
36OnStar™ Module/
OnStar™ Interface
Module/DisplayRear Compartment Fuse
Block
To open the liftgate, SeeLiftgate on
page 2-6.
The rear compartment fuse block is
located on the left side of the
cargo area behind a cover.
9-36 Vehicle Service and Care
ProCarManuals.com

Use the fuse puller, to remove and replace fuses.
Fuses Usage1 Front Power Window
3 ClusterFuses Usage
4 Climate Control
System (Battery)
11 Rear DefoggerFuses Usage 12 Rear Windshield Wiper
14 Climate Control
System (Ignition)
Vehicle Service and Care 9-37
ProCarManuals.com

Fuses Usage
16Front Passenger Seat
Detection Sensor
17Tire Pressure
Monitoring
System (TPMS)/
Rain Sensor/Inside
Rearview Mirror
18 Interior Lights
21 Outside Mirror Heating
22 Sunroof
23 Rear Power Window
24Diagnostic Link
Connector
29Accessory Power
Outlet (APO)
34 Sunroof
38 Door Locks
39 Seat Heating Driver
40Seat Heating Front
PassengerTires
Your new vehicle comes with
high-quality tires made by
a leading tire manufacturer.
If you ever have questions about
the tire warranty and where to
obtain service, see the “Limited
Warranty, Maintenance and
Owner Assistance Information”
manual for details.
{CAUTION
Poorly maintained and
improperly used tires are
dangerous.
Overloading your tires can
cause overheating as a
result of too much exing.
You could have an air-out
and a serious accident.
SeeLoading the Vehicle
on page 8-30.
(Continued)
CAUTION (Continued)
Underinated tires pose
the same danger as
overloaded tires.
The resulting accident
could cause serious
injury. Check all tires
frequently to maintain the
recommended pressure.
Tire pressure should be
checked when your tires
are cold. SeeInflation - Tire
Pressure on page 9-46.
Overinated tires are more
likely to be cut, punctured,
or broken by a sudden
impact — such as when
you hit a pothole. Keep
tires at the recommended
pressure.
(Continued)
9-38 Vehicle Service and Care
ProCarManuals.com