headlamp GMC SAVANA 2004 User Guide

8. Without removing the headlamp assembly itself,
remove the bulb socket from the back of the
headlamp on the driver’s side.
9. Turn the bulb counterclockwise one quarter turn to
remove it from the socket.
10. On the passenger’s side, turn the bulb clockwise
one turn. Do not touch the glass part of the bulb.11. Install the new bulb into the socket and return it to
the headlamp assembly.
12. Put the headlamp assembly back into the vehicle
and reinstall the two pins.
5-52

Center High Mounted
Stoplamp (CHMSL)
It is recommended that this component be replaced as
a unit by your dealer.
Replacement Bulbs
Exterior Lamp Bulb Number
Back-up Lamp 3157
CHMSL 912
Composite High-Beam
Headlamps9005
Composite Low-Beam
Headlamps9006GS
Front Parking and Turn Lamp 3157KX
Front Sidemarker Lamp 194
Sealed Beam Headlamps H6054
Rear Parking, Stop, and
Turn Lamp3157
For any bulb not listed here, contact your dealer.
5-55

{CAUTION:
Using the wrong replacement wheels, wheel
bolts or wheel nuts on your vehicle can be
dangerous. It could affect the braking and
handling of your vehicle, make your tires lose
air and make you lose control. You could have
a collision in which you or others could be
injured. Always use the correct wheel, wheel
bolts and wheel nuts for replacement.
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.
Whenever a wheel, wheel bolt or wheel nut is replaced
on a dual wheel setup, check the wheel nut torque
after 100, 1,000 and 6,000 miles (160, 1 600 and
10 000 km) of driving. For proper torque, see “Wheel Nut
Torque” underCapacities and Specications on
page 5-106.
SeeChanging a Flat Tire on page 5-75for 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
{CAUTION:
If your vehicle has dual wheels or P235/75R16
or LT245/75R16 size tires, do not use tire
chains. They can damage your vehicle because
there’s not enough clearance. Tire chains used
on a vehicle without the proper amount of
clearance can cause damage to the brakes,
suspension or other vehicle parts. The area
CAUTION: (Continued)
5-73

Electrical System
Add-On Electrical Equipment
Notice:Don’t add anything electrical to your
vehicle unless you check with your dealer rst.
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
Servicing Your Air Bag-Equipped Vehicle on page 1-78.
Headlamp Wiring
The headlamp wiring is protected by a circuit breaker in
the lamp switch. An electrical overload will cause the
lamps to icker on and off, or in some cases to remain
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.
Although the circuit is protected from electrical overload,
overload due to heavy snow, etc., may cause wiper
linkage damage. Always clear ice and heavy snow from
the windshield before using the windshield wipers. If
the overload is caused by some electrical problem and
not snow, etc., be sure to get it xed.
5-101

Fuse Usage
40 Oxygen Sensor A
41 Windshield Wipers
42 Right Headlamp — Low Beam
43 Left Headlamp — Low Beam
44 Left Headlamp — High Beam
45 Right Headlamp — High Beam
46 Truck Body Control Module-Accessory
47 Front Windshield Wiper
48 Anti-Lock Brakes
49 Ignition A
50 Trailer
51 Climate Control Blower
52 Ignition BFuse Usage
63 Spare
64 Spare
Relay Usage
53 Windshield Wiper
54 Air Conditioning
55 Spare
56 Headlamp —High Beam
57 Fuel Pump
58 Headlamp — Low Beam
59 Horn
61 Starter
62 Spare
Circuit
BreakerUsage
60 Power Seat
5-105

Audio System(s) (cont.)
Setting the Time for Radios with
Radio Data Systems (RDS).......................3-43
Setting the Time for Radios without
Radio Data Systems (RDS).......................3-43
Theft-Deterrent Feature................................3-72
Understanding Radio Reception.....................3-72
Automatic Transmission
Fluid..........................................................5-19
Operation...................................................2-24
B
Backing Up....................................................4-48
Battery..........................................................5-41
Battery Replacement......................................... 2-6
Battery Run-Down Protection............................3-17
Before Leaving on a Long Trip.........................4-23
Brake
Parking......................................................2-26
System Warning Light..................................3-32
Brake Adjustment............................................5-40
Brake Fluid....................................................5-38
Brake Pedal Travel.........................................5-40
Brake Wear...................................................5-40
Brakes..........................................................5-38
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-9Break-In, New Vehicle.....................................2-20
Bulb Replacement...........................................5-51
Front Turn Signal, Sidemarker and
Parking Lamps.........................................5-53
Halogen Bulbs............................................5-51
Headlamps.................................................5-51
Replacement Bulbs......................................5-55
Taillamps....................................................5-53
Buying New Tires...........................................5-70
C
California Fuel.................................................. 5-5
Canada........................................................... 7-4
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-7
Capacities and Specications..........................5-106
Carbon Monoxide...........................4-26, 4-37, 2-30
Care of
Safety Belts................................................5-95
Your Cassette Tape Player............................3-72
Your CD Player...........................................3-74
Your CDs ...................................................3-74
Cargo Door Relocking....................................... 2-9
Cargo Vans and Cab and Chassis Models
with an Air Bag Off Switch............................1-48
Cargo Vans and Cab and Chassis Models
without an Air Bag Off Switch........................1-47
2

Driving on Snow or Ice....................................4-26
Driving Through Deep Standing Water...............4-20
Driving Through Flowing Water.........................4-20
Driving with a Trailer.......................................4-47
Dual Stage Air Bags........................................1-72
Dual Tire Operation.........................................5-66
E
Electrical System
Add-On Equipment.....................................5-101
Fuses and Circuit Breakers.........................5-102
Headlamp Wiring.......................................5-101
Windshield Wiper Fuses.............................5-101
Electronic Road-Speed Governor.......................3-27
Emissions Inspection and Maintenance
Programs...................................................3-37
Engine
Air Cleaner/Filter.........................................5-18
Battery.......................................................5-41
Change Engine Oil Light...............................3-38
Check and Service Engine Soon Light............3-35
Coolant......................................................5-22
Coolant Heater............................................2-23
Coolant Temperature Gage...........................3-34
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-12
Exhaust.....................................................2-30Engine (cont.)
Fan Noise..................................................5-35
Oil .............................................................5-13
Overheating................................................5-25
Reduced Power Light...................................3-40
Starting......................................................2-22
Engine Compartment Fuse Block.....................5-103
Engine Oil Additives........................................5-16
Entry Lighting.................................................3-17
Event Data Records (EDR)................................ 7-9
Exit Lighting...................................................3-17
Extender, Safety Belt.......................................1-32
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-18
Finding a Program Type
(PTY) Station......................................3-53, 3-64
Finding a Station....................3-44, 3-46, 3-51, 3-61
Finish Care....................................................5-96
Finish Damage...............................................5-98
Fixed Mast Antenna........................................3-74
Flash-To-Pass Feature....................................... 3-9
Flat Tire........................................................5-74
Flat Tire, Changing.........................................5-75
Floor Console Fuse Block..............................5-102
5

Fluid
Automatic Transmission................................5-19
Power Steering...........................................5-35
Windshield Washer......................................5-36
FM ...............................................................3-72
Following Distance..........................................4-47
Front Axle......................................................5-49
Fuel............................................................... 5-4
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-41
Gasoline Octane........................................... 5-4
Gasoline Specications.................................. 5-5
Fuel Regulator................................................2-22
Fuses
Fuses and Circuit Breakers.........................5-102
Windshield Wiper.......................................5-101
G
Gage
Check Gages Warning Light..........................3-41
Engine Coolant Temperature.........................3-34
Fuel..........................................................3-41
Oil Pressure...............................................3-37Gage (cont.)
Speedometer..............................................3-26
Voltmeter Gage...........................................3-31
Gasoline
Octane........................................................ 5-4
Specications............................................... 5-5
GM Mobility Program for Persons with
Disabilities.................................................... 7-5
H
Hazard Warning Flashers................................... 3-6
Headlamp High/Low Beam Changer.................... 3-9
Headlamp Wiring...........................................5-101
Headlamps....................................................5-51
Bulb Replacement.......................................5-51
Front Turn Signal, Sidemarker and
Parking Lamps.........................................5-53
Halogen Bulbs............................................5-51
Highway Hypnosis...........................................4-24
Hill and Mountain Roads..................................4-24
Hitches..........................................................4-45
Hood
Checking Things Under.................................. 5-9
Release.....................................................5-10
Horn............................................................... 3-7
How to Add Coolant to the Coolant
Recovery Tank............................................5-29
6