2004 GMC SIERRA bulb

4. Put a new bulb into the
socket and turn
clockwise until it locks
in place.
5. Reinstall the lens and tighten the screws.
5-68

Center High-Mounted Stoplamp
(CHMSL) and Cargo Lamp
1. Remove the screws and lift off the lamp assembly.A. Cargo Lamps
B. Center High-Mounted Stoplamps
2. Remove the CHMSL bulb holder back plate from
the housing by pressing the release tabs.
3. Remove the CHMSL bulb by pulling the bulb
straight out from the holder back plate. Remove
a cargo bulb by turning the socket counterclockwise
and pulling the bulb straight out.
5-69

4. If a CHMSL bulb is replaced, put the new bulb into
the socket and press it in until it is tight.
If a cargo lamp is replaced, put a new cargo lamp
bulb into the socket and press it in until it is
tight before turning the socket counterclockwise.
5. Put the bulb holder back plate into the lamp
housing.
6. Reinstall the lamp assembly and tighten the screws.
Pickup Box Identi®cation and
Fender Marker Lamps
1. Remove the screws and lamp assembly.
2. Unplug the lamp assembly harness.
3. Gently pry the individual lamp from the lamp
housing.
4. Unplug the lamp.
5. Plug in a new lamp and snap it into the housing.
6. Reinstall the lamp housing.
5-70

A. Stoplamp
B. Turn Signal Lamp
C. Back-up Lamp
D. Side Marker Lamp
3. Press the release tab,
if equipped, and turn
the bulb socket
counterclockwise to
remove it from
the taillamp housing.
5-72

4. Pull the old bulb straight out from the socket.
5. Press a new bulb into the socket and turn the socket
clockwise into the taillamp housing.
6. Reinstall the rear lamp assembly.
7. Close the tailgate.
Taillamps (Chassis Cab Models)
A. Turn Signal Lamp
B. Stoplamp
C. Back-up Lamp1. Using your hands, peel the rubber seal away from
the lens.
2. Lift the lens off the lamp assembly.
3. Pull the old bulb straight out from the socket.
4. Put a new bulb into the socket and press it in until it
is tight.
5. Reinstall the lens and the lens seal.
5-73

Replacement Bulbs
Exterior Lamp Bulb Number
Low-Beam Headlamps 9006
High-Beam Headlamp 9005
Daytime Running Lamps (DRL) 4114K
Front Roof Marker Lamps 194
Front Parking and Turn Lamp 3457A
Rear Marker Lamp, Taillamp and
Stop Lamp**3157
Taillamp and Stop Lamp** 1157
Sidemarker Lamp (If Equipped) 194
Rear Turn Lamp 3157
Rear Turn Lamp ** 1156
Back-up Lamp 3157
Back-up Lamp** 1156
Center High-Mounted Stoplamp 912
Cargo Lamp 912
Fender Marker Lamps 194
* For any Bulb not listed here, contact your dealer.
** Chassis Cab Models
Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected at least
twice a year for wear and cracking. SeeScheduled
Maintenance on page 6-4for more information.
Replacement blades come in different types and are
removed in different ways. For proper type and length,
see
Normal Maintenance Replacement Parts on
page 6-17.
5-74

Audio System(s) (cont.)
Radio with CD............................................3-77
Radio with Six-Disc CD..............................3-102
Rear Seat Audio (RSA)...............................3-126
Setting the Time for Radios with Radio Data
Systems (RDS)........................................3-74
Setting the Time for Radios without Radio
Data Systems (RDS)................................3-74
Theft-Deterrent Feature...............................3-127
Understanding Radio Reception...................3-129
XMŸ Satellite Radio Antenna System...........3-131
Automatic Dimming Mirror Operation..........2-56, 2-58
Automatic Headlamp System............................3-15
Automatic Transfer Case..................................2-39
Automatic Transmission...................................2-23
Fluid..................................................5-25, 5-28
Operation...................................................2-26
Auxiliary Battery............................................4-100
Auxiliary Roof Mounted Lamp Switch.................3-18
B
Backing Up....................................................4-92
Battery..........................................................5-52
BATTERY NOT CHARGING.............................3-66
Battery Replacement......................................... 2-6
Battery Run-Down Protection............................3-20Battery Warning Light......................................3-42
Before Leaving on a Long Trip.........................4-44
Before You Drive...........................................3-116
Before You Go Off-Roading..............................4-22
Brake
Parking......................................................2-48
System Warning Light..................................3-43
Brake Adjustment............................................5-51
Brake Fluid....................................................5-48
Brake Pedal Travel.........................................5-51
Brake Wear...................................................5-51
Brakes..........................................................5-48
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-21
BUCKLE PASSENGER....................................3-67
BUCKLE SEATBELT.......................................3-67
Bulb Replacement...........................................5-64
Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp............................................5-69
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-66
Halogen Bulbs............................................5-64
Headlamps.................................................5-64
Pickup Box Identi®cation and Fender Marker
Lamps....................................................5-70
Replacement Bulbs......................................5-74
2

Bulb Replacement (cont.)
Roof Marker Lamps.....................................5-67
Taillamps....................................................5-71
Buying New Tires...........................................5-89
C
California Fuel.................................................. 5-5
Canada........................................................... 7-5
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-7
Capacities and Speci®cations..........................5-134
Car Washes for QUADRASTEERŸ Equipped
Vehicles.....................................................4-16
Carbon Monoxide...................4-47, 4-70, 2-14, 2-53
Care of
Safety Belts..............................................5-119
Your Cassette Tape Player..........................3-129
Your CD and DVD Player...........................3-131
Your CDs and DVDs..................................3-130
Cargo Lamp...................................................3-18
CARGO LAMP ON.........................................3-67
Cassette Tape Messages.................................3-98
CD Adapter Kits.............................................3-99
CD Messages.............................3-87, 3-101, 3-115
Center Console Storage Area...........................2-67
Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp...............................................5-69
Center Instrument Panel Fuse Block................5-128Center Passenger Position, Safety Belts.............1-25
Chains, Tires..................................................5-94
CHANGE ENGINE OIL....................................3-68
Check
Engine Light...............................................3-49
Check Engine Light.........................................3-49
CHECK OIL LEVEL.........................................3-67
CHECK WASHER FLUID.................................3-67
Checking Brake Fluid......................................5-49
Checking Coolant............................................5-35
Checking Engine Oil........................................5-18
Checking Things Under the Hood......................5-10
Checking Your Restraint Systems......................1-87
Chemical Paint Spotting.................................5-123
Child Restraints
Child Restraint Systems...............................1-39
Infants and Young Children...........................1-35
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-48
Older Children.............................................1-33
Securing a Child Restraint Designed
for the LATCH System......................1-50, 1-51
Securing a Child Restraint in a Center Rear
Seat Position...........................................1-58
Securing a Child Restraint in a Rear Outside
Seat Position...........................................1-55
Securing a Child Restraint in the Center Front
Seat Position...........................................1-60
Top Strap...................................................1-43
3