2004 GMC SIERRA DENALI warning light

A. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-16.
B. Coolant Surge Tank. See
Engine Coolant on
page 5-21.
C. Air Cleaner/Filter Restriction Indicator. See
Engine
Air Cleaner/Filter on page 5-16.
D. Engine Oil Dipstick. See
Engine Oil on page 5-10.
E. Engine Oil Fill Cap. See
Engine Oil on page 5-10.
F. Automatic Transmission Dipstick. See
Automatic
Transmission Fluid on page 5-18.
G. Fan. See
Cooling System on page 5-28.
H. Remote Negative (-) Terminal (GND). See
Jump
Starting on page 5-41.
I. Remote Positive (+) Terminal. See
Jump Starting on
page 5-41.
J. Power Steering Fluid Reservoir. See
Power Steering
Fluid on page 5-34.
K. Brake Fluid Reservoir. See
Brakes on page 5-36.
L. Underhood Fuse Block. See
Fuses and Circuit
Breakers on page 5-105.
M. Battery. See
Battery on page 5-40.
N. Windshield Washer Fluid Reservoir. See
Windshield
Washer Fluid on page 5-35.
Engine Oil
If the CHECK OIL LEVEL light appears on the
instrument cluster, it means you need to check your
engine oil level right away. For more information,
see ªCHECK OIL LEVELº under
DIC Warnings and
Messages on page 3-57.
You should check your engine oil level regularly; this is
an added reminder.
Checking Engine Oil
It is a good idea to check your engine oil every time you
get fuel. In order to get an accurate reading, the oil
must be warm and the vehicle must be on level ground.
The engine oil dipstick handle is a yellow loop. See
Engine Compartment Overview on page 5-10for
the location of the engine oil dipstick.
Turn off the engine and give the oil several minutes to
drain back into the oil pan. If you don't, the oil
dipstick might not show the actual level.
Pull out the dipstick and clean it with a paper towel or
cloth, then push it back in all the way. Remove it again,
keeping the tip down, and check the level.
5-11

Engine Coolant
The cooling system in your vehicle is ®lled with
DEX-COOLžengine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs ®rst, if you add only
DEX-COOL
žextended life coolant.
The following explains your cooling system and how to
add coolant when it is low. If you have a problem
with engine overheating, see
Engine Overheating on
page 5-25.A 50/50 mixture of clean, drinkable water and
DEX-COOL
žcoolant will:
·Give freezing protection down to-34ÉF (-37ÉC).
·Give boiling protection up to 265ÉF (129ÉC).
·Protect against rust and corrosion.
·Help keep the proper engine temperature.
·Let the warning lights and gages work as they
should.
Notice:Using coolant other than DEX-COOLžmay
cause premature engine, heater core or radiator
corrosion. In addition, the engine coolant may
require changing sooner, at 30,000 miles (50 000 km)
or 24 months, whichever occurs ®rst. Any repairs
would not be covered by your warranty. Always use
DEX-COOL
ž(silicate-free) coolant in your vehicle.
5-21

Brake Wear
Your vehicle has four-wheel disc brakes.
Disc brake pads have built-in wear indicators that make
a high-pitched warning sound when the brake pads
are worn and new pads are needed. The sound
may come and go or be heard all the time your vehicle
is moving (except when you are pushing on the
brake pedal ®rmly).
{CAUTION:
The brake wear warning sound means that
soon your brakes will not work well. That
could lead to an accident. When you hear the
brake wear warning sound, have your vehicle
serviced.
Notice:Continuing to drive with worn-out brake
pads could result in costly brake repair.
Some driving conditions or climates may cause a brake
squeal when the brakes are ®rst applied or lightly
applied. This does not mean something is wrong with
your brakes.
Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and evenly tighten wheel nuts in
the proper sequence to GM torque speci®cations.
Brake linings should always be replaced as complete
axle sets.
Brake Pedal Travel
See your dealer if the brake pedal does not return to
normal height, or if there is a rapid increase in
pedal travel. This could be a sign of brake trouble.
Brake Adjustment
Every time you make a brake stop, your disc brakes
adjust for wear.
5-39

A
Accessory Power Outlets.................................3-18
Adding Washer Fluid.......................................5-36
Additional Program Information........................... 7-9
Additives, Fuel................................................. 5-5
Add-On Equipment..........................................4-54
Adjusting the Speakers (Balance/Fade)..............3-68
After Off-Road Driving.....................................4-31
Air Bag
Off Light.....................................................3-30
Passenger Status Indicator...........................3-33
Readiness Light..........................................3-30
Air Bag Systems.............................................1-62
Adding Equipment to Your Air Bag-Equipped
Vehicle...................................................1-78
Air Bag Off Switch.......................................1-68
How Does an Air Bag Restrain?....................1-66
Passenger Sensing System...........................1-73
Servicing Your Air Bag-Equipped Vehicle.........1-78
What Makes an Air Bag In¯ate?....................1-66
What Will You See After an Air Bag
In¯ates?..................................................1-66
When Should an Air Bag In¯ate?...................1-65
Where Are the Air Bags?..............................1-64Air Cleaner/Filter, Engine.................................5-16
Air Conditioning..............................................3-23
Airbag Sensing and Diagnostic Module (SDM)...... 7-9
All Overseas Locations...................................... 7-5
All-Wheel Drive...............................................5-46
All-Wheel Drive (AWD) System.........................2-25
AM ...............................................................3-86
Antenna, Fixed Mast.......................................3-88
Antenna, XMŸ Satellite Radio Antenna
System......................................................3-88
Anti-lock Brake System..................................... 4-7
Anti-Lock Brake System Warning Light...............3-38
Appearance Care............................................5-96
Care of Safety Belts....................................5-98
Chemical Paint Spotting..............................5-102
Cleaning the Inside of Your Vehicle................5-96
Cleaning the Outside of Your Vehicle..............5-99
Finish Damage..........................................5-102
Sheet Metal Damage..................................5-101
Underbody Maintenance.............................5-102
Vehicle Care/Appearance Materials...............5-103
Weatherstrips..............................................5-98
Approaching a Hill..........................................4-23
Ashtrays........................................................3-19
1

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

D
Daytime Running Lamps..................................3-14
Defensive Driving............................................. 4-2
Defogging and Defrosting.................................3-25
Delayed Locking............................................... 2-8
Doing Your Own Service Work........................... 5-3
Dome Lamps.................................................3-17
Door
Delayed Locking........................................... 2-8
Locks.......................................................... 2-6
Power Door Locks......................................... 2-7
Programmable Automatic Door Locks............... 2-8
Rear Doors.................................................2-11
Driver
Position, Safety Belt.....................................1-14
DRIVER DOOR AJAR.....................................3-59
Driver Information Center (DIC).........................3-46
DIC Operation and Displays..........................3-46
DIC Warnings and Messages........................3-57
Driving
At Night.....................................................4-32
City...........................................................4-36
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-37
Hill and Mountain Roads..............................4-40
In Rain and on Wet Roads...........................4-33
Winter........................................................4-42
Driving Across an Incline..................................4-28Driving Downhill..............................................4-26
Driving in Mud, Sand, Snow or Ice....................4-29
Driving in Water..............................................4-30
Driving On Grades..........................................4-67
Driving on Off-Road Hills.................................4-22
Driving on Snow or Ice....................................4-43
Driving Through Deep Standing Water...............4-35
Driving Through Flowing Water.........................4-35
Driving Uphill..................................................4-24
Driving with a Trailer.......................................4-65
Dual Automatic Climate Control System.............3-19
E
Easy Exit Seat...............................................2-46
Electrical System
Fuses and Circuit Breakers.........................5-105
Power Windows and Other Power
Options.................................................5-105
Windshield Wiper Fuses.............................5-105
Emissions Inspection and Maintenance
Programs...................................................3-42
Engine
Air Cleaner/Filter.........................................5-16
Battery.......................................................5-40
Check and Service Engine Soon Light............3-40
Coolant......................................................5-21
Coolant Heater............................................2-20
Coolant Temperature Gage...........................3-38
5

Engine (cont.)
Engine Compartment Overview......................5-10
Exhaust.....................................................2-29
Fan Noise..................................................5-34
Oil .............................................................5-11
Overheating................................................5-25
Starting......................................................2-19
ENGINE COOLANT HOT.................................3-59
Engine Hour Meter Display...............................3-29
Engine Oil Additives........................................5-14
ENGINE OVERHEATED..................................3-59
Entry Lighting.................................................3-16
Environmental Concerns..................................4-20
Erasing HomeLink
žButtons..............................2-41
Event Data Records (EDR)................................ 7-9
Exit Lighting...................................................3-16
Express-Down Windows...................................2-14
Extender, Safety Belt.......................................1-29
Exterior Lamps...............................................3-12
F
Filter
Engine Air Cleaner......................................5-16
Finding a Program Type (PTY) Station
(RDS and XMŸ).........................................3-69
Finding a Station............................................3-67
Finish Care....................................................5-99
Finish Damage.............................................5-102Fixed Mast Antenna........................................3-88
Flash-to-Pass................................................... 3-7
Flat Tire........................................................5-75
Flat Tire, Changing.........................................5-76
Fluid
Automatic Transmission................................5-18
Power Steering...........................................5-34
Windshield Washer......................................5-35
FM Stereo.....................................................3-86
Fog Lamps....................................................3-15
Folding the Rear Seat....................................... 1-8
Following Distance..........................................4-66
Front Axle......................................................5-48
Front Reading Lamps......................................3-17
Fuel............................................................... 5-4
Additives...................................................... 5-5
California Fuel.............................................. 5-5
Filling a Portable Fuel Container..................... 5-8
Filling Your Tank........................................... 5-6
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-45
Gasoline Octane........................................... 5-4
Gasoline Speci®cations.................................. 5-4
Low Warning Light.......................................3-45
Fuel Information Button....................................3-49
FUEL LEVEL LOW.........................................3-59
Fuses
Fuses and Circuit Breakers.........................5-105
Windshield Wiper.......................................5-105
6

I
If No Steam Is Coming From Your Engine..........5-27
If Steam Is Coming From Your Engine...............5-26
If the Light is Flashing.....................................3-41
If the Light Is On Steady.................................3-42
If You Are Caught in a Blizzard.........................4-44
If You Are Stuck in Sand, Mud, Ice or Snow.......4-46
If You Do Decide To Pull A Trailer.....................4-59
Ignition Positions.............................................2-18
Illuminated Visor Vanity Mirrors.........................2-15
Infants and Young Children, Restraints...............1-32
In¯ation - Tire Pressure...................................5-67
Instrument Panel
Cluster.......................................................3-28
Overview..................................................... 3-2
Instrument Panel Brightness Control..................3-16
Instrument Panel Fuse Block..........................5-106
Interior Lamps................................................3-16
J
Jump Starting.................................................5-41
K
KEYFOB X BATTERY LOW.............................3-60
Keyless Entry System....................................... 2-3Keys............................................................... 2-2
L
Lamps
Exterior......................................................3-12
Interior.......................................................3-16
Lamps On Reminder.......................................3-14
Lap Belt........................................................1-23
Lap-Shoulder Belt...........................................1-14
LATCH System
Child Restraints...........................................1-44
Securing a Child Restraint Designed for the
LATCH System........................................1-46
Leaving Your Vehicle With the Engine
Running.....................................................2-27
Light
Air Bag Off .................................................3-30
Air Bag Readiness.......................................3-30
Anti-Lock Brake System Warning...................3-38
Battery Warning..........................................3-35
Brake System Warning.................................3-37
Cruise Control.............................................3-44
Low Fuel Warning.......................................3-45
Malfunction Indicator....................................3-40
Passenger Air Bag Status Indicator................3-33
Safety Belt Reminder...................................3-29
Tow/Haul Mode...........................................3-44
8