warning light GMC YUKON 2005 Owner's Guide

{CAUTION:
If you spill fuel and then something ignites it,
you could be badly burned. Fuel can spray out
on you if you open the fuel cap too quickly.
This spray can happen if your tank is nearly
full, and is more likely in hot weather. Open
the fuel cap slowly and wait for any hiss noise
to stop. Then unscrew the cap all the way.
Be careful not to spill fuel. Do not top off or overll the
tank and wait a few seconds after you have nished
pumping before removing the nozzle. Clean fuel
from painted surfaces as soon as possible. See
Washing Your Vehicle on page 5-99.
When replacing the fuel cap, turn it clockwise until it
clicks. It will require more effort to turn the fuel cap on
the last turn as you tighten it. Make sure the cap is
fully installed. The diagnostic system can determine if
the fuel cap has been left off or improperly installed. This
would allow fuel to evaporate into the atmosphere.
SeeMalfunction Indicator Lamp on page 3-48.The TIGHTEN FUEL CAP message will be displayed on
the Driver Information Center (DIC) if the fuel cap is
not properly installed. SeeDIC Warnings and Messages
on page 3-58for more information.
{CAUTION:
If a re starts while you are refueling, do not
remove the nozzle. Shut off the ow of fuel by
shutting off the pump or by notifying the
station attendant. Leave the area immediately.
Notice:If you need a new fuel cap, be sure to get
the right type. Your dealer can get one for you.
If you get the wrong type, it may not t properly.
This may cause your malfunction indicator lamp to
light and may damage your fuel tank and emissions
system. SeeMalfunction Indicator Lamp on
page 3-48.
5-9

How to Add Automatic Transmission
Fluid
Refer to the Maintenance Schedule to determine what
kind of transmission uid to use. SeeRecommended
Fluids and Lubricants on page 6-13.
Add uid only after checking the transmission uid while
it is hot. A cold check is used only as a reference.
If the uid level is low, add only enough of the proper
uid to bring the level up to the HOT area for a hot
check. It does not take much uid, generally less than
one pint (0.5 L).Do not overll.
Notice:Use of the incorrect automatic transmission
uid may damage your vehicle, and the damages
may not be covered by your warranty. Always
use the automatic transmission uid listed in
Recommended Fluids and Lubricants on page 6-13.
After adding uid, recheck the uid level as
described under “How to Check Automatic
Transmission Fluid,” earlier in this section.
When the correct uid level is obtained, push the
dipstick back in all the way; then ip the handle
down to lock the dipstick in place.
Engine Coolant
The cooling system in your vehicle is lled with
DEX-COOL®engine coolant. This coolant is designed
to remain in your vehicle for ve years or 150,000 miles
(240 000 km), whichever occurs rst, if you add only
DEX-COOL
®extended 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, seeEngine Overheating on
page 5-27.
A 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant will:
Give freezing protection down to−34°F (−37°C).
Give boiling protection up to 265°F (129°C).
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-COOL
®may
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
®(silicate-free) coolant in your vehicle.
5-24

Always clean the brake uid reservoir cap and the area
around the cap before removing it. This will help
keep dirt from entering the reservoir.
{CAUTION:
With the wrong kind of uid in your brake
system, your brakes may not work well, or
they may not even work at all. This could
cause a crash. Always use the proper brake
uid.
Notice:
Using the wrong uid can badly damage brake
system parts. For example, just a few drops of
mineral-based oil, such as engine oil, in your
brake system can damage brake system parts so
badly that they will have to be replaced. Do not
let someone put in the wrong kind of uid.
If you spill brake uid on your vehicle’s painted
surfaces, the paint nish can be damaged. Be
careful not to spill brake uid on your vehicle. If
you do, wash it off immediately. SeeAppearance
Care on page 5-95.
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.
5-39

When the tire pressure
monitoring system warning
light is lit, one or more
of your tires is signicantly
under-inated.
You should stop and check your tires as soon as
possible, and inate them to the proper pressure as
indicated on the vehicle’s tire information placard.
Driving on a signicantly under-inated tire causes the
tire to overheat and can lead to tire failure.
Under-ination also reduces fuel efficiency and tire tread
life, and may affect the vehicle’s handling and stopping
ability. Each tire, including the spare, should be
checked monthly when cold and set to the
recommended ination pressure as specied in the
vehicle placard and owner’s manual.
The Tire and Loading Information label (tire information
placard) shows the size of your vehicle’s original tires and
the correct ination pressure for your vehicle’s tires when
they are cold. SeeInation - Tire Pressure on page 5-64.
For the location of the tire and loading information label,
seeLoading Your Vehicle on page 4-51.Your vehicle’s TPM system can alert you about a low
tire pressure condition but it does not replace normal tire
maintenance. SeeTire Inspection and Rotation on
page 5-68andTires on page 5-57.
Notice:Do not use a tire sealant if your vehicle is
equipped with Tire Pressure Monitors. The liquid
sealant can damage the tire pressure monitor
sensors.
TPM Sensor Identication Codes
Each TPM sensor has a unique identication code. Any
time you rotate your vehicle’s tires or replace one or
more of the TPM sensors, the identication codes
will need to be matched to the new tire/wheel position.
Each tire/wheel position is matched to a sensor, by
increasing or decreasing the tire’s air pressure.
The sensors are matched to the tire/wheel positions in
the following order: left front (LF), right front (RF),
right rear (RR) and left rear (LR).
You will have one minute to match the rst tire/wheel
position, and ve minutes overall to match all four
tire/wheel positions. If it takes longer than one minute,
to match the rst tire and wheel, or more than ve
minutes to match all four tire and wheel positions the
matching process stops and you will need to start over.
5-66

The TPM sensor matching process is outlined below:
1. Set the Parking brake.
2. Turn the ignition switch to RUN with the engine off.
3. Turn the exterior lamp switch from “Off” to “On”
four times within 3 seconds. A double horn chirp
will sound and the TPM low tire warning light
will begin to ash. The double horn chirp and
ashing TPM warning light indicate that the TPM
matching process has started. The TPM warning
light should continue ashing throughout the
matching procedure. The SERVICE TIRE
MONITOR message will be displayed on the
Driver Information Center (DIC).
4. Start with the left (driver’s side) front tire.
5. Remove the valve cap from the valve cap stem.
Activate the TPM sensor by increasing or
decreasing the tire’s air pressure for 10 seconds,
then stop and listen for a single horn chirp.
The single horn chirp should sound within
15 seconds, conrming that the sensor identication
code has been matched to this tire and wheel
position. If you do not hear the conrming single
horn chirp, you will need to start over with step
number one. To let air-pressure out of a tire you can
use the pointy end of the valve cap, a pencil-style
air pressure gage or a key.6. Proceed to the right (passenger’s side) front tire,
and repeat the procedure in Step 5.
7. Proceed to the right (passenger’s side) rear tire,
and repeat the procedure in Step 5.
8. Proceed to the left (driver’s side) rear tire, and
repeat the procedure in Step 5.
9. After hearing the conrming horn chirp for the left
rear tire, check to see if the TPM warning light is
still ashing. If yes, turn the ignition switch to LOCK.
10. Set all four tires to the recommended air pressure
level as indicated on the Tire and Loading
Information label.
11. Put the valve caps back on the valve stems
The spare tire does not have a TPM sensor. If you
replace one of the road tires with the spare, the CHECK
TIRE PRESSURE message will be displayed on the
DIC screen. This message should go off once you
re-install the road tire containing the TPM sensor. The
SERVICE TIRE MONITOR message is displayed
when the TPM system is malfunctioning. One or more
missing or inoperable TPM sensors will cause the
service tire monitor message to be displayed. See your
dealer for service.
5-67

Uniform Tire Quality Grading
Quality grades can be found where applicable on the
tire sidewall between tread shoulder and maximum
section width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration, which grades tires by
treadwear, traction and temperature performance.
(This applies only to vehicles sold in the United States.)
The grades are molded on the sidewalls of most
passenger car tires. The Uniform Tire Quality Grading
system does not apply to deep tread, winter-type
snow tires, space-saver or temporary use spare tires,
tires with nominal rim diameters of 10 to 12 inches
(25 to 30 cm), or to some limited-production tires.
While the tires available on General Motors passenger
cars and light trucks may vary with respect to these
grades, they must also conform to federal safety
requirements and additional General Motors Tire
Performance Criteria (TPC) standards.
Treadwear
The treadwear grade is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a specied government test course.
For example, a tire graded 150 would wear one and
a half (1.5) times as well on the government course as
a tire graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart signicantly from the norm
due to variations in driving habits, service practices and
differences in road characteristics and climate.
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.
5-72

A
Accessory Power Outlets.................................3-20
Adding a Snow Plow or Similar Equipment.........4-57
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-80
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment...........................5-105
Adjustable Throttle and Brake Pedal..................2-22
Air Cleaner/Filter, Engine.................................5-19
Air Conditioning..............................3-21, 3-22, 3-24
Airbag
Passenger Status Indicator...........................3-40
Readiness Light..........................................3-39
Airbag Sensing and Diagnostic Module (SDM)...... 7-8
Airbag System................................................1-66
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-80
How Does an Airbag Restrain?......................1-73
Passenger Sensing System...........................1-75
Servicing Your Airbag-Equipped Vehicle..........1-80
What Makes an Airbag Inate?......................1-73
What Will You See After an Airbag Inates?....1-74
When Should an Airbag Inate?....................1-71
Where Are the Airbags?...............................1-69
All-Wheel Drive...............................................5-45
All-Wheel Drive with StabiliTrak
®.......................2-31AM-FM Radio.................................................3-76
Antenna, Fixed Mast......................................3-135
Antenna, XM™ Satellite Radio Antenna System . . . 3-135
Anti-Lock Brake System (ABS)........................... 4-6
Anti-Lock Brake, System Warning Light..............3-44
Appearance Care............................................5-95
Aluminum or Chrome-Plated Wheels.............5-101
Care of Safety Belts....................................5-99
Chemical Paint Spotting..............................5-102
Cleaning Exterior Lamps/Lenses....................5-99
Cleaning the Inside of Your Vehicle................5-96
Fabric/Carpet..............................................5-97
Finish Care...............................................5-100
Finish Damage..........................................5-102
Instrument Panel, Vinyl, and Other Plastic
Surfaces.................................................5-98
Leather......................................................5-98
Sheet Metal Damage..................................5-102
Tires........................................................5-102
Underbody Maintenance.............................5-102
Vehicle Care/Appearance Materials...............5-103
Washing Your Vehicle...................................5-99
Weatherstrips..............................................5-99
Windshield, Backglass, and Wiper Blades......5-100
Ashtrays........................................................3-20
1

Audio System(s).............................................3-74
AM-FM Radio.............................................3-76
Audio Steering Wheel Controls....................3-131
Care of Your Cassette Tape Player...............3-133
Care of Your CD and DVD Player................3-134
Care of Your CDs and DVDs.......................3-134
Chime Level Adjustment.............................3-135
Fixed Mast Antenna...................................3-135
Navigation/Radio System, see Navigation
Manual.................................................3-118
Radio with Cassette and CD.........................3-89
Radio with CD............................................3-78
Radio with Six-Disc CD..............................3-103
Rear Seat Audio (RSA)...............................3-129
Setting the Time for Radios with Radio Data
Systems (RDS)........................................3-75
Setting the Time for Radios without Radio
Data Systems (RDS)................................3-75
Theft-Deterrent Feature...............................3-131
Understanding Radio Reception...................3-132
XM™ Satellite Radio Antenna System...........3-135
Automatic Headlamp System............................3-16
Automatic Transmission
Fluid..........................................................5-21
Operation...................................................2-23
Autoride
®™ ....................................................4-66
Auxiliary Roof Mounted Lamp Switch.................3-17
B
Battery..........................................................5-40
Run-Down Protection...................................3-19
Battery Warning Light......................................3-42
Before Leaving on a Long Trip.........................4-42
Bench Seat....................................................1-15
Bench Seat Split (50/50)..................................1-11
Bench Seat, Split (60/40)................................... 1-8
Brake
Anti-Lock Brake System (ABS)........................ 4-6
Emergencies................................................ 4-8
Parking......................................................2-35
System Warning Light..................................3-43
Brake Pedal, Throttle.......................................2-22
Brakes..........................................................5-37
Braking........................................................... 4-5
Braking in Emergencies..................................... 4-8
Break-In, New Vehicle.....................................2-19
Bucket Seats, Rear.........................................1-19
Bulb Replacement...........................................5-49
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-51
Halogen Bulbs............................................5-49
Headlamps.................................................5-50
Replacement Bulbs......................................5-56
2

Door
Delayed Locking..........................................2-10
Locks.......................................................... 2-8
Power Door Locks......................................... 2-9
Programmable Automatic Door Locks.............2-10
Rear Door Security Locks.............................2-12
Driver
Position, Safety Belt.....................................1-28
Driver Information Center (DIC).........................3-54
DIC Operation and Displays..........................3-55
DIC Vehicle Customization............................3-68
DIC Warnings and Messages........................3-58
Driving
At Night.....................................................4-36
City...........................................................4-40
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-41
Hill and Mountain Roads..............................4-43
In Rain and on Wet Roads...........................4-37
Off-Road....................................................4-21
Recovery Hooks..........................................4-50
Rocking Your Vehicle to Get it Out.................4-50
Winter........................................................4-45
Dual Automatic Climate Control System.............3-24
Dual Climate Control System............................3-22
DVD
Rear Seat Entertainment System..................3-118E
Electrical System
Add-On Equipment.....................................5-105
Center Instrument Panel Fuse Block.............5-108
Fuses and Circuit Breakers.........................5-105
Instrument Panel Fuse Block.......................5-106
Power Windows and Other Power Options....5-105
Underhood Fuse Block...............................5-109
Windshield Wiper Fuses.............................5-105
Engine
Air Cleaner/Filter.........................................5-19
Battery.......................................................5-40
Check and Service Engine Soon Light............3-48
Coolant......................................................5-24
Coolant Heater............................................2-22
Coolant Temperature Gage...........................3-46
Engine Compartment Overview......................5-12
Exhaust.....................................................2-39
Fan Noise..................................................5-34
Oil .............................................................5-15
Oil Life System...........................................5-18
Overheated Protection Operating Mode...........5-29
Overheating................................................5-27
Starting......................................................2-21
Entry Lighting.................................................3-18
Event Data Recorders (EDR)............................. 7-8
Exit Lighting...................................................3-18
Extender, Safety Belt.......................................1-42
5

F
Filter
Engine Air Cleaner......................................5-19
Finish Damage.............................................5-102
Fixed Mast Antenna.......................................3-135
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-76
Flat Tire, Changing.........................................5-76
Flat Tire, Storing.............................................5-91
Fluid
Automatic Transmission................................5-21
Power Steering...........................................5-35
Windshield Washer......................................5-36
Fog Lamps....................................................3-17
Four-Wheel Drive....................................2-27, 5-47
Four-Wheel-Drive Light....................................3-52
Front Axle......................................................5-48
Front Reading Lamps......................................3-19
Front Storage Area.........................................2-56
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-5
E-85 (85% Ethanol)....................................... 5-6
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-8Fuel (cont.)
Fuels in Foreign Countries.............................. 5-8
Gage.........................................................3-53
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Low Warning Light.......................................3-53
Fuses
Center Instrument Panel Fuse Block.............5-108
Fuses and Circuit Breakers.........................5-105
Instrument Panel Fuse Block.......................5-106
Underhood Fuse Block...............................5-109
Windshield Wiper.......................................5-105
G
Gage
Engine Coolant Temperature.........................3-46
Fuel..........................................................3-53
Oil Pressure...............................................3-51
Speedometer..............................................3-38
Tachometer.................................................3-38
Transmission Temperature.............................3-46
Voltmeter Gage...........................................3-42
Garage Door Opener.......................................2-52
6