warning GMC SIERRA DENALI 2005 Service Manual

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 specications.
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

Replacing Brake System Parts
The braking system on a vehicle is complex. Its many
parts have to be of top quality and work well together if
the vehicle is to have really good braking. Your vehicle
was designed and tested with top-quality GM brake parts.
When you replace parts of your braking system — for
example, when your brake linings wear down and you
need new ones put in — be sure you get new approved
GM replacement parts. If you do not, your brakes may no
longer work properly. For example, if someone puts in
brake linings that are wrong for your vehicle, the balance
between your front and rear brakes can change — for the
worse. The braking performance you have come to
expect can change in many other ways if someone puts
in the wrong replacement brake parts.
Battery
Your vehicle has a maintenance free battery. When it is
time for a new battery, get one that has the replacement
number shown on the original battery’s label. We
recommend an ACDelco
®replacement battery. See
Engine Compartment Overview on page 5-12for battery
location.
Warning:Battery posts, terminals and related
accessories contain lead and lead compounds,
chemicals known to the State of California to cause
cancer and reproductive harm. Wash hands after
handling.
Vehicle Storage
If you are not going to drive your vehicle for 25 days
or more, remove the black, negative (−) cable from
the battery. This will help keep your battery from
running down.
{CAUTION:
Batteries have acid that can burn you and gas
that can explode. You can be badly hurt if you
are not careful. SeeJump Starting on page 5-41
for tips on working around a battery without
getting hurt.
Also, for your audio system, seeTheft-Deterrent
Feature on page 3-90.
5-40

Traction – AA, A, B, C
The traction grades, from highest to lowest, are AA, A,
B, and C. Those grades represent the tire’s ability
to stop on wet pavement as measured under controlled
conditions on specied government test surfaces of
asphalt and concrete. A tire marked C may have poor
traction performance. Warning: The traction grade
assigned to this tire is based on straight-ahead braking
traction tests, and does not include acceleration,
cornering, hydroplaning, or peak traction characteristics.
Temperature – A, B, C
The temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation
of heat and its ability to dissipate heat when tested
under controlled conditions on a specied indoor
laboratory test wheel. Sustained high temperature can
cause the material of the tire to degenerate and
reduce tire life, and excessive temperature can lead to
sudden tire failure. The grade C corresponds to a
level of performance which all passenger car tires must
meet under the Federal Motor Vehicle Safety Standard
No. 109. Grades B and A represent higher levels of
performance on the laboratory test wheel than the
minimum required by law.Warning: The temperature grade for this tire is
established for a tire that is properly inated and not
overloaded. Excessive speed, underination, or
excessive loading, either separately or in combination,
can cause heat buildup and possible tire failure.
Wheel Alignment and Tire Balance
The wheels on your vehicle were aligned and balanced
carefully at the factory to give you the longest tire life
and best overall performance.
If you notice unusual tire wear or your vehicle pulling
one way or the other, the alignment may need to
be reset. If you notice your vehicle vibrating when driving
on a smooth road, your wheels may need to be
rebalanced.
5-68

Changing a Flat Tire
If a tire goes at, avoid further tire and wheel damage
by driving slowly to a level place. Turn on your
hazard warning ashers.
{CAUTION:
Changing a tire can be dangerous. The vehicle
can slip off the jack and roll over or fall on you
or other people. You and they could be badly
injured or even killed. Find a level place to
change your tire. To help prevent the vehicle
from moving:
1. Set the parking brake rmly.
2. Put the shift lever in PARK (P).
CAUTION: (Continued)
CAUTION: (Continued)
3. Turn off the engine and do not restart
while the vehicle is raised.
4. Do not allow passengers to remain in the
vehicle.
To be even more certain the vehicle will not
move, you should put blocks at the front and
rear of the tire farthest away from the one
being changed. That would be the tire, on the
other side, at the opposite end of the vehicle.
5-72

Appearance Care
Cleaning products can be hazardous. Some are toxic.
Other cleaning products can burst into ames if a match
is struck near them or if they get on a hot part of the
vehicle. Some are dangerous if their fumes are inhaled
in an enclosed space. When anything from a container
is used to clean the vehicle, be sure to follow the
manufacturer’s warnings and instructions. Always open
the doors or windows of the vehicle when cleaning
the inside.
Never use these to clean the vehicle:
Gasoline
Benzene
Naphtha
Carbon Tetrachloride
Acetone
Paint Thinner
Turpentine
Lacquer Thinner
Nail Polish Remover
They can all be hazardous — some more than
others — and they can all damage the vehicle, too.Do not use any of these products unless this manual
says you can. In many uses, these will damage
the vehicle:
Alcohol
Laundry Soap
Bleach
Reducing Agents
Fabric/Carpet
Use a vacuum cleaner often to get rid of dust and loose
dirt. Wipe vinyl, leather, plastic, and painted surfaces
with a clean, damp cloth.
GM-approved cleaning products can be obtained from
your dealer.
Here are some cleaning tips:
Always read the instructions on the cleaner label.
Clean up stains as soon as you can before they set.
Carefully scrape off any excess stain.
Use a clean cloth or sponge, and change to a clean
area often. A soft brush may be used if stains are
stubborn.
To avoid forming a ring on fabric after spot cleaning,
clean the entire area immediately or it will set.
5-92

A
Accessory Power Outlets.................................3-18
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-60
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment...........................5-102
Air Cleaner/Filter, Engine.................................5-19
Air Conditioning..............................................3-20
Airbag
Passenger Status Indicator...........................3-29
Readiness Light..........................................3-29
Airbag Sensing and Diagnostic Module (SDM)...... 7-9
Airbag System................................................1-48
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-60
How Does an Airbag Restrain?......................1-53
Passenger Sensing System...........................1-55
Servicing Your Airbag-Equipped Vehicle..........1-59
What Makes an Airbag Inate?......................1-53
What Will You See After an Airbag Inates?....1-54
When Should an Airbag Inate?....................1-52
Where Are the Airbags?...............................1-50
All-Wheel Drive...............................................5-46
All-Wheel Drive (AWD) System.........................2-23
Antenna, Fixed Mast.......................................3-94
Antenna, XM™ Satellite Radio Antenna System.....3-94
Anti-Lock Brake System (ABS)........................... 4-6
Anti-Lock Brake, System Warning Light..............3-33
Appearance Care............................................5-92Aluminum or Chrome-Plated Wheels..............5-98
Care of Safety Belts....................................5-95
Chemical Paint Spotting...............................5-99
Cleaning Exterior Lamps/Lenses....................5-96
Fabric/Carpet..............................................5-92
Finish Care.................................................5-96
Finish Damage............................................5-99
Glass Surfaces............................................5-95
Instrument Panel.........................................5-94
Interior Plastic Components...........................5-95
Leather......................................................5-94
Sheet Metal Damage...................................5-99
Tires..........................................................5-98
Underbody Maintenance...............................5-99
Vehicle Care/Appearance Materials...............5-100
Vinyl..........................................................5-94
Washing Your Vehicle...................................5-96
Weatherstrips..............................................5-95
Windshield and Wiper Blades........................5-97
Wood Panels..............................................5-95
Ashtrays........................................................3-19
Audio System(s).............................................3-60
Audio Steering Wheel Controls......................3-91
Care of Your Cassette Tape Player................3-92
Care of Your CD Player...............................3-93
Care of Your CDs........................................3-93
CD Changer...............................................3-87
Chime Level Adjustment...............................3-94
Fixed Mast Antenna.....................................3-94
Navigation/Radio System..............................3-86
1

Audio System(s) (cont.)
Radio with Cassette and CD.........................3-61
Rear Seat Audio (RSA)................................3-86
Setting the Time..........................................3-61
Theft-Deterrent Feature................................3-90
Understanding Radio Reception.....................3-92
XM™ Satellite Radio Antenna System............3-94
Automatic Headlamp System............................3-15
Automatic Transmission
Fluid..........................................................5-21
Operation...................................................2-20
B
Battery..........................................................5-40
Run-Down Protection...................................3-18
Battery Warning Light......................................3-31
Before Leaving on a Long Trip.........................4-33
Brake
Anti-Lock Brake System (ABS)........................ 4-6
Emergencies................................................ 4-8
Parking......................................................2-24
System Warning Light..................................3-32
Brakes..........................................................5-37
Braking........................................................... 4-5
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-16
Bulb Replacement...........................................5-49Center High-Mounted Stoplamp (CHMSL)
and Cargo Lamp......................................5-51
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-50
Halogen Bulbs............................................5-49
Headlamps.................................................5-49
Replacement Bulbs......................................5-54
Taillamps....................................................5-53
Buying New Tires...........................................5-66
C
California Fuel.................................................. 5-6
Canadian Owners................................................ ii
Capacities and Specications..........................5-112
Carbon Monoxide...................2-11, 2-27, 4-36, 4-52
Care of
Safety Belts................................................5-95
Your Cassette Tape Player............................3-92
Your CD Player...........................................3-93
Your CDs ...................................................3-93
Cargo Lamp...................................................3-18
CD Changer...................................................3-87
Center Console Storage Area...........................2-41
Center High-Mounted Stoplamp (CHMSL)
and Cargo Lamp.........................................5-51
Chains, Tire...................................................5-70
2

Customer Assistance Information (cont.)
Reporting Safety Defects to the Canadian
Government............................................7-10
Reporting Safety Defects to the
United States Government.........................7-10
Roadside Assistance Program......................... 7-5
Service Publications Ordering Information........7-11
D
Daytime Running Lamps..................................3-14
Defensive Driving............................................. 4-2
Delayed Locking............................................... 2-8
Doing Your Own Service Work........................... 5-4
Dome Lamp Override......................................3-17
Dome Lamps.................................................3-17
Door
Delayed Locking........................................... 2-8
Locks.......................................................... 2-7
Power Door Locks......................................... 2-8
Programmable Automatic Door Locks............... 2-9
Driver
Position, Safety Belt.....................................1-13
Driver Information Center (DIC).........................3-42
DIC Operation and Displays..........................3-43
DIC Vehicle Customization............................3-54
DIC Warnings and Messages........................3-45Driving
At Night.....................................................4-26
City...........................................................4-31
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-32
Hill and Mountain Roads..............................4-34
In Rain and on Wet Roads...........................4-28
Recovery Hooks..........................................4-41
Rocking Your Vehicle to Get it Out.................4-40
Winter........................................................4-36
Dual Automatic Climate Control System.............3-20
DVD
Rear Seat Entertainment System...................3-75
E
Electrical System
Add-On Equipment.....................................5-102
Center Instrument Panel Fuse Block.............5-106
Fuses and Circuit Breakers.........................5-102
Instrument Panel Fuse Block.......................5-103
Power Windows and Other Power Options....5-102
Underhood Fuse Block...............................5-107
Windshield Wiper Fuses.............................5-102
4

Engine
Air Cleaner/Filter.........................................5-19
Battery.......................................................5-40
Check and Service Engine Soon Light............3-36
Coolant......................................................5-24
Coolant Heater............................................2-19
Coolant Temperature Gage...........................3-34
Engine Compartment Overview......................5-12
Exhaust.....................................................2-27
Fan Noise..................................................5-34
Oil .............................................................5-14
Overheated Protection Operating Mode...........5-28
Overheating................................................5-26
Starting......................................................2-18
Entry Lighting.................................................3-17
Event Data Recorders (EDR)............................. 7-9
Exit Lighting...................................................3-17
Extender, Safety Belt.......................................1-26
F
Filter
Engine Air Cleaner......................................5-19
Finish Damage...............................................5-99
Fixed Mast Antenna........................................3-94
Flash-to-Pass................................................... 3-9Flat Tire........................................................5-71
Flat Tire, Changing.........................................5-72
Flat Tire, Storing.............................................5-87
Fluid
Automatic Transmission................................5-21
Power Steering...........................................5-34
Windshield Washer......................................5-36
Fog Lamps....................................................3-16
Front Axle......................................................5-48
Front Reading Lamps......................................3-18
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-41
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Low Warning Light.......................................3-41
Fuses
Center Instrument Panel Fuse Block.............5-106
Fuses and Circuit Breakers.........................5-102
Instrument Panel Fuse Block.......................5-103
Underhood Fuse Block...............................5-107
Windshield Wiper.......................................5-102
5

G
Gage
Engine Coolant Temperature.........................3-34
Fuel..........................................................3-41
Oil Pressure...............................................3-39
Speedometer..............................................3-28
Tachometer.................................................3-28
Transmission Temperature.............................3-34
Voltmeter Gage...........................................3-31
Garage Door Opener.......................................2-36
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
Glove Box.....................................................2-41
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-6
Headlamps............................................3-13, 5-49
Automatic Headlamp System.........................3-15
Bulb Replacement.......................................5-49
Daytime Running Lamps...............................3-14
Flash-to-Pass............................................... 3-9
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-50Headlamps (cont.)
Halogen Bulbs............................................5-49
High/Low Beam Changer................................ 3-8
On Reminder..............................................3-14
Heated Seats................................................... 1-3
Heater...........................................................3-20
Highbeam On Light.........................................3-40
Highway Hypnosis...........................................4-33
Hill and Mountain Roads..................................4-34
HomeLink
®Transmitter....................................2-36
HomeLink®Transmitter, Programming................2-37
Hood
Checking Things Under................................5-10
Release.....................................................5-10
Horn............................................................... 3-6
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-13
I
Ignition Positions.............................................2-17
Infants and Young Children, Restraints...............1-29
Ination -- Tire Pressure..................................5-62
Instrument Panel
Brightness..................................................3-16
Cluster.......................................................3-27
Overview..................................................... 3-4
6