check engine light CHEVROLET TAHOE 2007 3.G User Guide

STABILITRAK OFF
If your vehicle has StabiliTrak®, this message
displays when you turn off StabiliTrak®, or when
the stability control has been automatically
disabled. To limit wheel spin and realize the full
benets of the stability enhancement system, you
should normally leave StabiliTrak
®on. However,
you should turn StabiliTrak®off if your vehicle gets
stuck in sand, mud, ice, or snow and you want
to rock your vehicle to attempt to free it, or if you
are driving in extreme off-road conditions and
require more wheel spin. SeeIf Your Vehicle is
Stuck in Sand, Mud, Ice, or Snow on page 404.To
turn the StabiliTrak
®system on or off, see
StabiliTrak®System on page 363.
There are several conditions that can cause this
message to appear.
One condition is overheating, which could
occur if StabiliTrak®activates continuously
for an extended period of time.
The message also displays if the brake
system warning light is on. SeeBrake System
Warning Light on page 249.
The message could display if the stability
system takes longer than usual to complete its
diagnostic checks due to driving conditions.
The message displays if an engine or vehicle
related problem has been detected and the
vehicle needs service. See your dealer.
The message also displays if the vehicle is
shifted into 4LO.
The message turns off as soon as the conditions
that caused the message to be displayed are
no longer present.
TIGHTEN GAS CAP
This message may display along with the check
engine light on the instrument panel cluster if
the vehicle’s fuel cap is not tightened properly. See
Malfunction Indicator Lamp on page 253.
Reinstall the fuel cap fully. SeeFilling the Tank on
page 451. The diagnostic system can determine
if the fuel cap has been left off or improperly
installed. A loose or missing fuel cap allows fuel to
evaporate into the atmosphere. A few driving
trips with the cap properly installed should turn this
light and message off.
278

If your vehicle’s engine ever stops while you are
driving, brake normally but do not pump the
brakes. If you do, the pedal may get harder to
push down. If the engine stops, you will still have
some power brake assist. But you will use it
when you brake. Once the power assist is used
up, it may take longer to stop and the brake pedal
will be harder to push.
Adding non-GM accessories can affect your
vehicle’s performance. SeeAccessories and
Modications on page 444.
Anti-Lock Brake System (ABS)
Your vehicle has the Anti-Lock Brake System
(ABS), an advanced electronic braking system that
will help prevent a braking skid.
When you start your engine and begin to drive
away, ABS will check itself. You may hear a
momentary motor or clicking noise while this test
is going on. This is normal.If there is a problem
with ABS, this warning
light will stay on.
SeeAnti-Lock Brake
System Warning
Light on page 251.
Along with ABS, your vehicle has a Dynamic Rear
Proportioning (DRP) system. If there is a DRP
problem, both the brake and ABS warning lights
will come on accompanied by a 10-second
chime. The lights and chime will come on each
time the ignition is turned on until the problem is
repaired. See your dealer for service.
361

{CAUTION:
If you have too much brake uid, it can
spill on the engine. The uid will burn if
the engine is hot enough. You or others
could be burned, and your vehicle could
be damaged. Add brake uid only when
work is done on the brake hydraulic
system. See “Checking Brake Fluid” in
this section.
When the brake uid falls to a low level, the brake
warning light will come on. SeeBrake System
Warning Light on page 249.
Refer to the Maintenance Schedule to determine
when to check your brake uid. SeeScheduled
Maintenance on page 579.
Checking Brake Fluid
You can check the brake uid without taking off
the cap.
Look at the brake uid
reservoir. The uid level
should be above
MIN. If it is not, have
your brake system
checked to see if there
is a leak.
After work is done on the brake hydraulic system,
make sure the level is above the MIN but not
over the MAX mark.
487

{CAUTION:
An electric fan can start up even when the
engine is not running and can injure you.
Keep hands, clothing and tools away from
any underhood electric fan.
{CAUTION:
Using a match near a battery can cause
battery gas to explode. People have been
hurt doing this, and some have been
blinded. Use a ashlight if you need more
light.
Be sure the battery has enough water. You
do not need to add water to the battery
installed in your new vehicle. But if a
battery has ller caps, be sure the
CAUTION: (Continued)
CAUTION: (Continued)
right amount of uid is there. If it is low,
add water to take care of that rst. If you
do not, explosive gas could be present.
Battery uid contains acid that can burn
you. Do not get it on you. If you
accidentally get it in your eyes or on your
skin, ush the place with water and get
medical help immediately.
{CAUTION:
Fans or other moving engine parts can
injure you badly. Keep your hands away
from moving parts once the engine is
running.
5. Check that the jumper cables do not have
loose or missing insulation. If they do, you
could get a shock. The vehicles could
be damaged too.
493

(e)Make sure the safety belt reminder light and all
your belts, buckles, latch plates, retractors, and
anchorages are working properly. Look for
any other loose or damaged safety belt system
parts. If you see anything that might keep a safety
belt system from doing its job, have it repaired.
Have any torn or frayed safety belts replaced. Also
look for any opened or broken airbag coverings,
and have them repaired or replaced. The
airbag system does not need regular maintenance.
(f)Lubricate all key lock cylinders, hood latch
assembly, secondary latch, pivots, spring anchor,
release pawl, rear compartment hinges, outer
liftgate handle pivot points, rear door detent link,
roller mechanism, liftgate handle pivot points, latch
bolt, fuel door hinge, cargo door hinge, locks,
and folding seat hardware. More frequent
lubrication may be required when exposed to a
corrosive environment. Applying silicone grease on
weatherstrips with a clean cloth will make them
last longer, seal better, and not stick or squeak.
(g)Check vent hose at transfer case for kinks and
proper installation.(h)Change automatic transmission uid and lter
if the vehicle is mainly driven under one or
more of these conditions:
In heavy city traffic where the outside
temperature regularly reaches 90°F (32°C) or
higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police, or delivery
service.
(i)Drain, ush, and rell cooling system. This
service can be complex; you should have
your dealer perform this service. See Engine
Coolant on page 470 for what to use. Inspect
hoses. Clean radiator, condenser, pressure cap,
and ller neck. Pressure test the cooling
system and pressure cap.
(j)A uid loss in any vehicle system could indicate
a problem. Have the system inspected and
repaired and the uid level checked. Add uid if
needed.
585

C
Calibration..........................................162, 166
California Fuel............................................. 447
California Proposition 65 Warning................ 445
Canadian Owners........................................... 3
Capacities and Specications...................... 572
Carbon Monoxide.....125, 127, 160, 400, 422
Care of
Safety Belts............................................. 556
Your CD and DVD Player........................ 353
Your CDs and DVDs................................ 353
Cargo Cover............................................... 192
Cargo Management System........................ 194
CD, MP3 ............................................321, 327
Center Console Storage Area...................... 190
Center Front Passenger Position,
Safety Belts............................................... 53
Center Seat.................................................. 19
Chains, Tire................................................. 530
Charging System Light................................ 248
Check
Engine Light............................................ 253
Checking Things Under the Hood................ 456
Chemical Paint Spotting.............................. 561Child Restraints
Child Restraint Systems............................. 68
Infants and Young Children........................ 64
Lower Anchors and Tethers for Children....... 74
Older Children........................................... 61
Securing a Child Restraint in a
Rear Seat Position ................................. 82
Securing a Child Restraint in the
Center Front Seat Position..................... 85
Securing a Child Restraint in the
Right Front Seat Position........................ 85
Where to Put the Restraint........................ 72
Cigarette Lighter.......................................... 227
Cleaning
Aluminum or Chrome-Plated Wheels........ 559
Exterior Lamps/Lenses............................. 557
Fabric/Carpet........................................... 554
Finish Care.............................................. 557
Inside of Your Vehicle.............................. 553
Instrument Panel, Vinyl, and Other
Plastic Surfaces.................................... 556
Leather.................................................... 555
Tires........................................................ 560
Underbody Maintenance........................... 560
Washing Your Vehicle.............................. 557
621

Dome Lamp Override.................................. 219
Dome Lamps............................................... 219
Door
Delayed Locking...................................... 123
Locks....................................................... 122
Power Door Locks................................... 123
Programmable Automatic Door Locks....... 123
Rear Door Security Locks........................ 124
Driver
Position, Safety Belt................................... 43
Driver Information Center (DIC)................... 260
DIC Operation and Displays............261, 267
DIC Vehicle Customization....................... 280
DIC Warnings and Messages................... 270
Driving
At Night................................................... 389
City.......................................................... 393
Defensive................................................. 356
Drunken................................................... 357
Freeway................................................... 394
Hill and Mountain Roads.......................... 398
In Rain and on Wet Roads...................... 390
Off-Road.................................................. 372
Recovery Hooks....................................... 406
Rocking Your Vehicle to Get it Out.......... 405
Winter...................................................... 400Dual Automatic Climate Control System....... 231
DVD
Rear Seat Entertainment System............. 337
E
Electrical System
Add-On Equipment................................... 563
Center Instrument Panel Fuse Block........ 566
Fuses and Circuit Breakers...................... 564
Instrument Panel Fuse Block................... 565
Power Windows and Other Power
Options................................................. 564
Underhood Fuse Block............................. 567
Windshield Wiper Fuses........................... 564
Engine
Air Cleaner/Filter...................................... 464
Check and Service Engine Soon Light..... 253
Coolant.................................................... 470
Coolant Heater......................................... 143
Coolant Temperature Gage...................... 252
Drive Belt Routing.................................... 593
Engine Compartment Overview................ 458
Exhaust................................................... 160
Fan Noise................................................ 483
Oil ........................................................... 459
623

G
Gage
Engine Coolant Temperature.................... 252
Fuel......................................................... 259
Oil Pressure............................................. 256
Speedometer........................................... 244
Tachometer.............................................. 244
Voltmeter Gage........................................ 249
Garage Door Opener................................... 178
Gasoline
Octane..................................................... 447
Specications........................................... 447
Glove Box................................................... 190
GM Mobility Reimbursement Program.......... 603
H
Hazard Warning Flashers............................ 204
Head Restraints............................................ 18
Headlamp
Aiming..................................................... 499
Headlamps
Bulb Replacement.................................... 502
Daytime Running Lamps.......................... 216
Flash-to-Pass........................................... 207
Halogen Bulbs......................................... 502Headlamps (cont.)
High/Low Beam Changer......................... 207
On Reminder........................................... 216
Heated Seats................................................ 12
Heater......................................................... 227
Heater......................................................... 231
Highbeam On Light..................................... 259
Highway Hypnosis....................................... 397
Hill and Mountain Roads............................. 398
Hood
Checking Things Under............................ 456
Release................................................... 457
Horn............................................................ 204
How to Use This Manual................................ 4
How to Wear Safety Belts Properly............... 43
I
Ignition Positions......................................... 140
Infants and Young Children, Restraints.......... 64
Ination - Tire Pressure............................... 515
Instrument Panel
Overview.................................................. 202
Instrument Panel (I/P)
Brightness................................................ 219
Cluster..................................................... 243
625

N
Navigation/Radio System, see Navigation
Manual..................................................... 337
New Vehicle Break-In.................................. 139
Normal Maintenance Replacement Parts....... 592
O
Odometer.................................................... 244
Odometer, Trip............................................ 244
Off-Road Driving.......................................... 372
Off-Road Recovery...................................... 369
Oil
Engine..................................................... 459
Pressure Gage......................................... 256
Pressure Light.......................................... 257
Oil, Engine Oil Life System......................... 462
Older Children, Restraints............................. 61
Online Owner Center................................... 601
OnStar
®System, see OnStar®Manual........ 173
Operation, Universal Home
Remote System..............................178, 182
Other Warning Devices................................ 204
Outlet Adjustment........................................ 238Outlets
Accessory Power..................................... 225
Outside
Automatic Dimming Mirror........................ 172
Convex Mirror.......................................... 173
Curb View Assist Mirrors.......................... 172
Heated Mirrors......................................... 173
Manual Mirrors......................................... 168
Power Foldaway Mirrors........................... 171
Power Mirrors.......................................... 170
Trailer-Tow Mirrors................................... 169
Overheated Engine Protection
Operating Mode....................................... 476
Owner Checks and Services....................... 586
Owners, Canadian.......................................... 3
P
Paint, Damage............................................ 560
Park Aid...................................................... 222
Park (P)
Shifting Into............................................. 157
Shifting Out of......................................... 159
628

Rear Seat Audio (RSA)............................... 348
Rear Seat Entertainment System................. 337
Rear Seat Passengers, Safety Belts.............. 54
Rear Side Window Antenna......................... 354
Rear Storage Area...................................... 192
Rear Windshield Washer/Wiper.................... 210
Rearview Mirror, Automatic Dimming with
Compass and Temperature Display.......... 166
Rearview Mirror, Automatic Dimming with
OnStar
®, Compass and Temperature
Display..................................................... 162
Reclining Seatbacks...................................... 15
Recommended Fluids and Lubricants.......... 590
Recovery Hooks.......................................... 406
Recreational Vehicle Towing........................ 418
Remote Keyless Entry (RKE) System.......... 114
Remote Keyless Entry (RKE) System,
Operation................................................. 115
Removing the Flat Tire and Installing the
Spare Tire................................................ 537
Removing the Spare Tire and Tools............ 533
Replacement Bulbs..................................... 504
Reporting Safety Defects
Canadian Government............................. 615
General Motors........................................ 615
United States Government....................... 615Restraint System Check
Checking the Restraint Systems............... 108
Replacing Restraint System Parts
After a Crash........................................ 109
Retained Accessory Power (RAP)................ 141
Right Front Passenger Position,
Safety Belts............................................... 52
Roadside
Assistance Program................................. 604
Rocking Your Vehicle to Get it Out.............. 405
Routing, Engine Drive Belt.......................... 593
Running Boards, Power............................... 131
Running the Engine While Parked............... 161
S
Safety Belt
Passenger Reminder Light....................... 245
Pretensioners............................................. 60
Reminder Light........................................ 244
Safety Belts
Care of.................................................... 556
Center Front Passenger Position................ 53
Driver Position........................................... 43
How to Wear Safety Belts Properly............ 43
630