2004 GMC SIERRA DENALI 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.
5-53

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.
5-54

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.
5-55

3. Press the release tab and turn the bulb socket
counterclockwise to remove it from the taillamp
housing.
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 until it clicks.
6. Reinstall the rear lamp assembly.
7. Close the tailgate.
Replacement Bulbs
Exterior Lamp Bulb Number
Low-Beam Headlamps 9005 or
9005 LL
(long life)
High-Beam Headlamps 9005
Daytime Running Lamps (DRL) 4114K
Front Roof Marker Lamps 194
Front Parking and Turn Lamps 3457A
Rear Marker Lamps, Taillamp and
Stoplamps3157
Rear Turn Lamps 3157
Back-up Lamps 3157
Center High-Mounted Stoplamp 912
Cargo Lamp 912
Fender Marker Lamps 194
For any bulb not listed here contact your dealer.
5-57

Audio System(s).............................................3-64
Audio Steering Wheel Controls......................3-85
Care of Your Cassette Tape Player................3-87
Care of Your CD Player...............................3-88
Care of Your CDs........................................3-88
CD Changer...............................................3-82
Chime Level Adjustment...............................3-88
Fixed Mast Antenna.....................................3-88
Navigation/Radio System..............................3-79
Radio with Cassette and CD.........................3-65
Rear Seat Audio (RSA)................................3-80
Setting the Time..........................................3-64
Theft-Deterrent Feature................................3-85
Understanding Radio Reception.....................3-86
XMŸ Satellite Radio Antenna System............3-88
Automatic Dimming Mirror Operation..................2-32
Automatic Headlamp System............................3-13
Automatic Transmission
Fluid..........................................................5-18
Operation...................................................2-22
B
Backing Up....................................................4-66
Battery..........................................................5-40
BATTERY NOT CHARGING.............................3-58
Battery Replacement......................................... 2-5
Battery Run-Down Protection............................3-18Battery Warning Light......................................3-35
Before Leaving on a Long Trip.........................4-38
Before You Go Off-Roading..............................4-18
Brake
Parking......................................................2-25
System Warning Light..................................3-37
Brake Adjustment............................................5-39
Brake Fluid....................................................5-36
Brake Pedal Travel.........................................5-39
Brake Wear...................................................5-39
Brakes..........................................................5-36
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-18
BUCKLE PASSENGER....................................3-58
BUCKLE SEATBELT.......................................3-58
Bulb Replacement...........................................5-49
Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp............................................5-54
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-50
Halogen Bulbs............................................5-49
Headlamps.................................................5-49
Pickup Box Identi®cation and Fender
Marker Lamps.........................................5-55
Replacement Bulbs......................................5-57
Roof Marker Lamps.....................................5-52
Taillamps....................................................5-56
Buying New Tires...........................................5-70
2

G
Gage
Engine Coolant Temperature.........................3-38
Fuel..........................................................3-45
Oil Pressure...............................................3-43
Speedometer..............................................3-29
Tachometer.................................................3-29
Transmission Temperature.............................3-39
Voltmeter Gage...........................................3-36
Garage Door Opener.......................................2-38
Gasoline
Octane........................................................ 5-4
Speci®cations............................................... 5-4
Gate Operator and Canadian Programming........2-41
Getting Familiar with Off-Road Driving................4-20
Glove Box.....................................................2-42
GM Mobility Program for Persons with
Disabilities.................................................... 7-5
H
Hazard Warning Flashers................................... 3-4
Head Restraints............................................... 1-7
Headlamp High/Low-Beam Changer.................... 3-6
Headlamps....................................................5-49
Bulb Replacement.......................................5-49
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-50Headlamps (cont.)
Halogen Bulbs............................................5-49
Pickup Box Identi®cation and Fender
Marker Lamps.........................................5-55
Roof Marker Lamps.....................................5-52
Heated Seats................................................... 1-4
Heating.........................................................3-24
Highway Hypnosis...........................................4-39
Hill and Mountain Roads..................................4-40
Hitches..........................................................4-63
HomeLink
žTransmitter....................................2-38
HomeLinkžTransmitter, Programming................2-39
Hood
Checking Things Under.................................. 5-8
Release....................................................... 5-9
Horn............................................................... 3-5
How to Add Coolant to the Coolant
Surge Tank.................................................5-30
How to Add Fluid............................................5-20
How to Check........................................5-18, 5-67
How to Check Lubricant...................................5-47
How to Check Power Steering Fluid..................5-35
How to Inspect...............................................5-16
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-14
Hydroplaning..................................................4-35
7

Removing the Flat Tire and Installing the
Spare Tire..................................................5-80
Removing the Spare Tire and Tools...................5-77
Replacement Bulbs.........................................5-57
Replacing Brake System Parts..........................5-40
Replacing Restraint System Parts After
a Crash.....................................................1-80
Reporting Safety Defects
Canadian Government..................................7-11
General Motors...........................................7-11
United States Government............................7-10
Reprogramming a Single HomeLink
žButton.......2-42
Resetting Defaults...........................................2-42
Restraint System Check
Checking Your Restraint Systems...................1-79
Replacing Restraint System Parts After
a Crash..................................................1-80
Restraint Systems
Checking....................................................1-79
Replacing Parts...........................................1-80
Resynchronization............................................. 2-6
Retained Accessory Power (RAP)......................2-19
Right Front Passenger Position, Safety Belts......1-22
Right Front Passenger Position Top Strap
Anchor.......................................................1-42
Roadside
Assistance Program....................................... 7-6
Rocking Your Vehicle To Get It Out...................4-46
Running Your Engine While You Are Parked.......2-30
S
Safety Belt
Reminder Light............................................3-29
Safety Belts
Care of......................................................5-98
Center Passenger Position............................1-22
Driver Position............................................1-14
How to Wear Safety Belts Properly................1-14
Questions and Answers About Safety Belts.....1-13
Rear Safety Belt Comfort Guides for Children
and Small Adults......................................1-27
Rear Seat Passengers.................................1-24
Right Front Passenger Position......................1-22
Safety Belt Extender....................................1-29
Safety Belt Use During Pregnancy.................1-21
Safety Belts Are for Everyone......................... 1-8
Safety Chains.................................................4-64
Safety Warnings and Symbols.............................. iii
Scanning the Terrain.......................................4-21
Scheduled Maintenance..................................... 6-4
Seats
Head Restraints............................................ 1-7
Heated Seats............................................... 1-4
Memory.....................................................2-45
Power Lumbar.............................................. 1-4
Power Seats................................................. 1-3
Rear Seat Operation...................................... 1-8
Reclining Seatbacks...................................... 1-5
12