check engine light CHEVROLET TAHOE 2004 2.G User Guide

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.
What to Use
Use a mixture of one-halfclean, drinkable waterand
one-half DEX-COOL®coolant which won’t damage
aluminum parts. If you use this coolant mixture,
you don’t need to add anything else.
{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can boil
before the proper coolant mixture will. Your
vehicle’s coolant warning system is set for the
proper coolant mixture. With plain water or the
wrong mixture, your engine could get too hot
but you would not get the overheat warning.
Your engine could catch re and you or others
could be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.
Notice:If you use an improper coolant mixture,
your engine could overheat and be badly damaged.
The repair cost would not be covered by your
warranty. Too much water in the mixture can freeze
and crack the engine, radiator, heater core and
other parts.
If you have to add coolant more than four times a year,
have your dealer check your cooling system.
Notice:If you use the proper coolant, you do not
have to add extra inhibitors or additives which claim
to improve the system. These can be harmful.
5-27

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.
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 OFF.
5-71

Bulb Replacement (cont.)
Replacement Bulbs......................................5-60
Roof Marker Lamps.....................................5-57
Side Identication Marker Lamps...................5-57
Taillamps....................................................5-59
Buying New Tires...........................................5-74
C
California Fuel.................................................. 5-6
Canada – Customer Assistance.......................... 7-4
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-7
Capacities and Specications..........................5-118
Car Washes for QUADRASTEER™
Equipped Vehicles.......................................4-19
Carbon Monoxide...................2-14, 2-43, 4-48, 4-65
Care of
Safety Belts..............................................5-103
Your Cassette Tape Player..........................3-137
Your CD and DVD Player...........................3-138
Your CDs and DVDs..................................3-138
Cargo Cover..................................................2-65
Cargo Tie Downs............................................2-65
Cassette Tape Messages...............................3-104
CD Adapter Kits............................................3-104
CD Messages.............................3-92, 3-107, 3-122Center Console Storage Area...........................2-63
Center Instrument Panel Fuse Block................5-112
Center Passenger Position, Safety Belts.............1-40
Chains, Tires..................................................5-79
CHANGE ENGINE OIL....................................3-69
Check
Engine Light...............................................3-50
Check Engine Light.........................................3-50
CHECK OIL LEVEL.........................................3-70
CHECK TIRE PRESSURE...............................3-70
CHECK WASHER FLUID.................................3-70
Checking Brake Fluid......................................5-41
Checking Coolant............................................5-28
Checking Engine Oil........................................5-17
Checking Things Under the Hood......................5-12
Chemical Paint Spotting.................................5-107
Child Restraints
Child Restraint Systems...............................1-54
Infants and Young Children...........................1-50
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-62
Older Children.............................................1-48
Securing a Child Restraint Designed
for the LATCH System..............................1-64
Securing a Child Restraint in a Center
Rear Seat Position...................................1-67
Securing a Child Restraint in a Rear
Outside Seat Position...............................1-64
3

Driving with a Trailer.......................................4-74
Dual Automatic Climate Control System.............3-27
Dual Climate Control System............................3-23
DVD
Rear Seat Entertainment System..................3-123
DVD Distortion..............................................3-133
DVD Messages.............................................3-133
DVD Player..................................................3-126
E
Easy Exit Seat...............................................2-68
Electrical System
Add-On Equipment.....................................5-110
Fuses and Circuit Breakers.........................5-110
Power Windows and Other Power Options....5-110
Windshield Wiper Fuses.............................5-110
Emissions Inspection and Maintenance
Programs...................................................3-52
Engine
Air Cleaner/Filter.........................................5-22
Battery.......................................................5-44
Check and Service Engine Soon Light............3-50
Coolant......................................................5-26
Coolant Heater............................................2-24
Coolant Temperature Gage...........................3-47
Drive Belt Routing.......................................6-17
Engine Compartment Overview......................5-14Engine (cont.)
Exhaust.....................................................2-43
Fan Noise..................................................5-37
Oil .............................................................5-17
Overheating................................................5-29
Starting......................................................2-23
ENGINE COOLANT HOT.................................3-70
Engine Hour Meter Display...............................3-41
Engine Oil Additives........................................5-20
ENGINE OVERHEATED..................................3-70
Entering or Exiting the Third Row Seats.............1-10
Entry Lighting.................................................3-19
Environmental Concerns..................................4-27
Erasing HomeLink
®Buttons..............................2-61
Event Data Recorders (EDR)............................. 7-9
Exit Lighting...................................................3-19
Express-Down Windows...................................2-17
Extender, Safety Belt.......................................1-47
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-22
Finding a Program Type (PTY) Station
(RDS and XM™).......................3-85, 3-97, 3-112
Finding a Station..................3-78, 3-83, 3-95, 3-110
Finish Care..................................................5-104
6

H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-9
Headlamp High/Low-Beam Changer.................... 3-8
Headlamps....................................................5-54
Bulb Replacement.......................................5-54
Front Turn Signal, Sidemarker and Daytime
Running Lamps........................................5-56
Halogen Bulbs............................................5-54
Roof Marker Lamps.....................................5-57
Side Identication Marker Lamps...................5-57
Headphones.................................................3-123
Heated Seats................................................... 1-6
Heating.........................................................3-31
Highway Hypnosis...........................................4-46
Hill and Mountain Roads..................................4-46
Hitches..........................................................4-72
HomeLink
®Transmitter....................................2-58
HomeLink®Transmitter, Programming................2-59
Hood
Checking Things Under................................5-12
Release.....................................................5-12
Horn............................................................... 3-6
How to Add Coolant to the Coolant
Surge Tank.................................................5-34
How to Add Fluid............................................5-26
How to Check Lubricant...................................5-51How to Check Power Steering Fluid..................5-39
How to Inspect...............................................5-22
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-31
Hydroplaning..................................................4-42
I
If No Steam Is Coming From Your Engine..........5-31
If Steam Is Coming From Your Engine...............5-30
If the Light is Flashing.....................................3-51
If the Light Is On Steady.................................3-51
If You Are Caught in a Blizzard.........................4-50
If You Are Stuck in Sand, Mud, Ice or Snow.......4-52
If You Do Decide To Pull A Trailer.....................4-66
Ignition Positions.............................................2-22
Infants and Young Children, Restraints...............1-50
Ination - Tire Pressure...................................5-69
Instrument Panel
Cluster.......................................................3-40
Overview..................................................... 3-4
Instrument Panel Brightness.............................3-18
Instrument Panel Fuse Block..........................5-111
Interior Lamps................................................3-18
J
Jump Starting.................................................5-44
8

Rearview Mirrors.............................................2-45
Reclining Seatbacks.......................................... 1-7
Reclining the Seatbacks...................................1-23
Recommended Fluids and Lubricants.................6-13
Recreational Vehicle Towing.............................4-55
REDUCED ENGINE POWER...........................3-72
Remote Control.............................................3-128
Remote Keyless Entry System............................ 2-5
Remote Keyless Entry System, Operation............ 2-6
Removing the 50/50 Split Bench Seat................1-16
Removing the Bench Seat................................1-21
Removing the Flat Tire and Installing the
Spare Tire..................................................5-86
Removing the Spare Tire and Tools...................5-82
REPLACE LIFTGATE FUSE.............................3-72
Replacement Bulbs.........................................5-60
Replacing Brake System Parts..........................5-43
Replacing the 50/50 Split Bench Seat................1-17
Replacing the Bench Seat................................1-22
Reporting Safety Defects
Canadian Government..................................7-11
General Motors...........................................7-11
United States Government............................7-10
Reprogramming a Single HomeLink
®Button.......2-62
Resetting Defaults...........................................2-62
Restraint System Check
Checking Your Restraint Systems...................1-89
Replacing Restraint System Parts After a
Crash.....................................................1-90Restraint Systems
Checking....................................................1-89
Replacing Parts...........................................1-90
Resynchronization............................................. 2-8
Retained Accessory Power (RAP)......................2-22
Right Front Passenger Position, Safety Belts......1-40
RIGHT REAR DOOR AJAR..............................3-72
Roadside
Assistance Program....................................... 7-6
Rocking Your Vehicle To Get It Out...................4-53
Routing, Engine Drive Belt...............................6-17
Running Your Engine While You Are Parked.......2-44
S
Safety Belt
Reminder Light............................................3-41
Safety Belts
Care of....................................................5-103
Center Passenger Position............................1-40
Driver Position............................................1-31
How to Wear Safety Belts Properly................1-31
Questions and Answers About Safety Belts.....1-30
Rear Safety Belt Comfort Guides for Children
and Small Adults......................................1-45
Rear Seat Passengers.................................1-42
Right Front Passenger Position......................1-40
Safety Belt Extender....................................1-47
13

Using HomeLink®...........................................2-61
Using Song List Mode...................................3-120
Using the Recovery Hooks...............................4-53
V
Vehicle
Control........................................................ 4-6
Damage Warnings........................................... iv
Loading......................................................4-58
Symbols......................................................... iv
Vehicle Data Collection and Event Data
Recorders.................................................... 7-9
Vehicle Identication
Number (VIN)............................................5-109
Service Parts Identication Label..................5-109
Vehicle Personalization
Memory Seat..............................................2-67
Vehicle Storage..............................................5-44
Video Screen................................................3-125
Visors...........................................................2-18
Voltmeter Gage..............................................3-44
W
Warning Lights, Gages and Indicators................3-39
Warnings
DIC Warnings and Messages........................3-68
Hazard Warning Flashers............................... 3-6Warnings (cont.)
Other Warning Devices.................................. 3-6
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washing Your Vehicle....................................5-104
Weight Distributing Hitches and Weight
Carrying Hitches..........................................4-72
Weight of the Trailer........................................4-68
Weight of the Trailer Tongue.............................4-71
What Kind of Engine Oil to Use........................5-18
What to Add..................................................5-42
What to Do with Used Oil................................5-21
What to Use..................................5-27, 5-39, 5-51
Wheels
Alignment and Tire Balance..........................5-77
Replacement...............................................5-77
When to Add Engine Oil..................................5-18
When to Change Engine Oil
(GM Oil Life System)...................................5-20
When to Check Lubricant.................................5-51
When to Check Power Steering Fluid................5-38
When to Inspect.............................................5-22
When You Are Ready to Leave After
Parking on a Hill.........................................4-77
Where to Put the Restraint...............................1-57
Why Safety Belts Work....................................1-27
Windows.......................................................2-16
Manual......................................................2-16
17