2004 GMC ENVOY XUV gas tank

Did you just drive through a deep puddle of water?
If so, your electrical system may be wet. The condition
will usually be corrected when the electrical system
dries out. A few driving trips should turn the light off.
Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel. See
Gasoline Octane on page 5-4. Poor fuel quality will
cause your engine not to run as efficiently as designed.
You may notice this as stalling after start-up, stalling
when you put the vehicle into gear, mis®ring, hesitation
on acceleration or stumbling on acceleration. (These
conditions may go away once the engine is warmed up.)
This will be detected by the system and cause the
light to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at least
one full tank of the proper fuel to turn the light off.
If none of the above steps have made the light turn off,
your dealer can check the vehicle. Your dealer has
the proper test equipment and diagnostic tools to ®x any
mechanical or electrical problems that may have
developed.
Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have or
may begin programs to inspect the emission control
equipment on your vehicle. Failure to pass this
inspection could prevent you from getting a vehicle
registration.
Here are some things you need to know to help your
vehicle pass an inspection:
Your vehicle will not pass this inspection if the SERVICE
ENGINE SOON or CHECK ENGINE light is on or not
working properly.
Your vehicle will not pass this inspection if the OBD
(on-board diagnostic) system determines that critical
emission control systems have not been completely
diagnosed by the system. The vehicle would be
considered not ready for inspection. This can happen if
you have recently replaced your battery or if your
battery has run down. The diagnostic system is
designed to evaluate critical emission control systems
during normal driving. This may take several days
of routine driving. If you have done this and your vehicle
still does not pass the inspection for lack of OBD
system readiness, your GM dealer can prepare the
vehicle for inspection.
3-40

Fuel Gage
When the ignition is on, the fuel gage tells you about
how much fuel you have remaining.Here are four things that some owners ask about. None
of these show a problem with your fuel gage:
·At the gas station, the gas pump shuts off before
the gage reads full.
·It takes a little more or less fuel to ®ll up than the
gage indicated. For example, the gage may have
indicated the tank was half full, but it actually took a
little more or less than half the tank's capacity to
®ll the tank.
·The gage moves a little when you turn a corner or
speed up.
·The gage doesn't go back to empty when you turn
off the ignition.
Low Fuel Warning Light
The light next to the fuel gage will come on brie¯y when
you are starting the engine.
This light comes on when the fuel tank is low on fuel.
To turn it off, add fuel to the fuel tank. United States
Canada
3-45

SERVICE BRAKE SYSTEM
If a problem occurs with the brake system this message
will appear on the DIC. If this message appears, stop
as soon as possible and turn off the vehicle. Restart the
vehicle and check for the message on the DIC display.
If the message is still displayed, or appears again when
you begin driving, the brake system needs service.
TURN SIGNAL ON
If a turn signal is left on for 3/4 of a mile (1.2 km), this
message will appear on the display and you will
hear a chime. Move the turn signal/multifunction lever to
the off position. Pressing the select button will
acknowledge this message and clear it from the DIC
display.
FUEL LEVEL LOW
If the fuel level is low in the vehicle's gas tank this
message will appear on the DIC and you will hear a
chime. Refuel as soon as possible. Pressing the select
button will acknowledge this message and clear it
from the DIC display.
CHECK WASHER FLUID
If the washer ¯uid level is low, this message will appear
on the DIC. Adding washer ¯uid will clear the message.
Pressing the select button will acknowledge this
message and clear it from the DIC display.
ICE POSSIBLE
If the outside temperature reaches a level where ice
could form on the roadway, this message may appear
on the DIC. If the temperature rises to a safe level,
the message will clear. Pressing the select button will
acknowledge this message and clear it from the
DIC display.
DRIVER DOOR AJAR
If the driver's door is not fully closed, this message will
appear on the display and you will hear a chime.
Stop and turn off the vehicle, check the door for
obstacles, and close the door again. Check to see if the
message still appears on the DIC. Pressing the select
button will acknowledge this message and clear it
from the DIC display.
3-57

Service............................................................5-3
Doing Your Own Service Work.........................5-3
Adding Equipment to the Outside
of Your Vehicle...........................................5-4
Fuel................................................................5-4
Gasoline Octane............................................5-4
Gasoline Speci®cations....................................5-5
California Fuel...............................................5-5
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-6
Filling Your Tank............................................5-7
Filling a Portable Fuel Container.....................5-10
Checking Things Under the Hood....................5-10
Hood Release..............................................5-11
Engine Compartment Overview.......................5-12
Engine Oil...................................................5-15
Engine Air Cleaner/Filter................................5-20
Automatic Transmission Fluid.........................5-21
Engine Coolant.............................................5-23
Radiator Pressure Cap..................................5-26
Engine Overheating.......................................5-26
Cooling System............................................5-28
Engine Fan Noise.........................................5-34
Power Steering Fluid.....................................5-35
Windshield Washer Fluid................................5-36Brakes........................................................5-37
Battery........................................................5-40
Jump Starting...............................................5-41
Rear Axle.......................................................5-46
Four-Wheel Drive............................................5-46
Front Axle......................................................5-47
Bulb Replacement..........................................5-48
Headlamps..................................................5-48
Taillamps and Turn Signal Lamps...................5-49
Replacement Bulbs.......................................5-50
Windshield Wiper Blade Replacement..............5-50
Tires..............................................................5-52
In¯ation - Tire Pressure.................................5-60
Tire Inspection and Rotation...........................5-61
When It Is Time for New Tires.......................5-63
Buying New Tires.........................................5-64
Uniform Tire Quality Grading..........................5-65
Wheel Alignment and Tire Balance..................5-66
Wheel Replacement......................................5-66
Tire Chains..................................................5-68
Accessory In¯ator.........................................5-68
If a Tire Goes Flat........................................5-70
Changing a Flat Tire.....................................5-71
Spare Tire...................................................5-83
Section 5 Service and Appearance Care
5-1

Environmental Concerns..................................4-17
Erasing HomeLinkžButtons..............................2-50
Event Data Recorders (EDR)............................. 7-9
Exit Lighting...................................................3-17
Express Down Window....................................2-21
Extender, Safety Belt.......................................1-28
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-20
Finding a Program Type (PTY) Station
(RDS and XMŸ).........................3-66, 3-78, 3-93
Finding a Station............................3-64, 3-76, 3-91
Finish Care....................................................5-88
Finish Damage...............................................5-89
Fixed Mast Antenna.......................................3-121
Flash-to-Pass................................................... 3-8
Flat Tire........................................................5-70
Flat Tire, Changing.........................................5-71
Fluid
Automatic Transmission................................5-21
Power Steering...........................................5-35
Windshield Washer......................................5-36
FM Stereo....................................................3-119
Fog Lamps....................................................3-16
Following Distance..........................................4-63
Four-Wheel Drive....................................2-31, 5-46Front Axle......................................................5-47
Front Storage Area.........................................2-51
Fuel............................................................... 5-4
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-45
Gasoline Octane........................................... 5-4
Gasoline Speci®cations.................................. 5-5
Low Warning Light.......................................3-45
Fuel Information..............................................3-48
FUEL LEVEL LOW.........................................3-57
Fuses
Fuses and Circuit Breakers...........................5-93
Windshield Wiper.........................................5-92
G
Gage
Check Gages Warning Light..........................3-44
Engine Coolant Temperature.........................3-37
Fuel..........................................................3-45
Oil Pressure...............................................3-41
Speedometer..............................................3-32
Tachometer.................................................3-33
Voltmeter Gage...........................................3-35
Garage Door Opener.......................................2-47
6

Gasoline
Octane........................................................ 5-4
Speci®cations............................................... 5-5
Gate Operator and Canadian Programming........2-49
Getting Familiar with Off-Road Driving................4-17
Glove Box.....................................................2-51
GM Mobility Program for Persons with
Disabilities.................................................... 7-5
H
Head Restraints............................................... 1-6
Headlamp High/Low-Beam Changer.................... 3-8
Headlamp Washer..........................................3-10
Headlamps....................................................5-48
Bulb Replacement.......................................5-48
Electrical System.........................................5-92
Headphones.................................................3-111
Heated Seats................................................... 1-4
Highway Hypnosis...........................................4-36
Hill and Mountain Roads..................................4-37
Hitches..........................................................4-60
HomeLink
žTransmitter....................................2-47
HomeLinkžTransmitter, Programming................2-47
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-5How to Add Coolant to the Coolant
Recovery Tank............................................5-30
How to Add Coolant to the Radiator..................5-32
How to Add Fluid............................................5-23
How to Check........................................5-21, 5-60
How to Check Lubricant...................................5-46
How to Check Power Steering Fluid..................5-35
How to Inspect...............................................5-20
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-13
Hydroplaning..................................................4-31
I
ICE POSSIBLE..............................................3-57
If No Steam Is Coming From Your Engine..........5-27
If Steam Is Coming From Your Engine...............5-26
If the Light Is Flashing.....................................3-39
If the Light Is On Steady.................................3-39
If You Are Caught in a Blizzard.........................4-41
If You Are Stuck in Sand, Mud, Ice or Snow.......4-44
If You Do Decide To Pull A Trailer.....................4-57
Ignition Positions.............................................2-24
Infants and Young Children, Restraints...............1-31
In¯ation - Tire Pressure...................................5-60
Instrument Panel
Cluster.......................................................3-31
Overview..................................................... 3-4
7