2004 GMC ENVOY tire pressure

Accessory Inator
Your vehicle may be equipped with an air inator
system. You can inate things like basketballs and
bicycle tires. Also, you can use it to bring your tire
pressure up to the proper pressure. It is not designed to
inate large objects which will require more than ve
minutes to inate, such as an air mattress.
The air inator is located in
the rear compartment on
the passenger’s side of the
vehicle behind an access
cover.To remove the cover, pull the two tabs on the cover and
pull it off.
The air inator kit includes a 22 ft (6.7 m) hose with
three nozzle adapters.
To use the air inator, attach the appropriate nozzle
adapter to the end of the hose if required. Then attach
that end of the hose to the object you wish to inate.
Attach the other end of the hose to the outlet.
Press and release the switch to turn the air inator on.
The indicator light will remain on when the inator is
running.
The system has an internal clock to prevent overheating.
The system will allow about ve minutes of running
time, then the compressor will stop. The indicator light
will then begin to ash. When the indicator is off,
the inator can be started again by pressing the switch.
If the compressor is still hot, it may only run for a
short time before shutting off again.
5-73

Spare Tire
Your vehicle, when new, had a fully inated spare tire.
A spare tire may lose air over time, so check its
ination pressure regularly. SeeInation - Tire Pressure
on page 5-65and “Loading Your Vehicle” for information
regarding proper tire ination and loading your vehicle.
For instruction on how to remove, install or store a spare
tire, seeChanging a Flat Tire on page 5-76.
After installing the spare tire on your vehicle, you should
stop as soon as possible and make sure the spare is
correctly inated. Have the damaged or at road
tire repaired or replaced as soon as you can and
installed back onto your vehicle. This way, a spare tire
will be available in case you need it again.
Appearance Care
Remember, cleaning products can be hazardous. Some
are toxic. Others can burst into ames if you strike a
match or get them on a hot part of the vehicle. Some are
dangerous if you breathe their fumes in a closed
space. When you use anything from a container to clean
your vehicle, be sure to follow the manufacturer’s
warnings and instructions. And always open your doors
or windows when you are cleaning the inside.
Never use these to clean your 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 your vehicle, too.
5-91

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. Reset oil life system. SeeEngine Oil on
page 5-16.An Emission Control Service.••
Visually check for any leaks or damage.See footnote (j).••
Inspect engine air cleaner lter. If necessary, replace lter. SeeEngine Air
Cleaner/Filter on page 5-21.An Emission Control Service. See footnote †.••
Rotate tires and check ination pressures and wear. SeeTires on page 5-57.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid as
needed.••
Perform any needed additional services. See “Additional Required Services” in
this section.••
Inspect suspension and steering components.See footnote (b).•
Inspect engine cooling system.See footnote (c).•
Inspect wiper blades.See footnote (d).•
Inspect restraint system components.See footnote (e).•
Lubricate body components.See footnote (f).•
Check transmission uid level and add uid as needed.•
6-5

Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure the safety,
dependability and emission control performance of your
vehicle. Your GM Goodwrench dealer can assist you
with these checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-12.
At Each Fuel Fill
It is important to perform these underhood checks at
each fuel ll.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-16for further
details.
Notice:It is important to check your oil regularly
and keep it at the proper level. Failure to keep your
engine oil at the proper level can cause damage
to your engine not covered by your warranty.
Engine Coolant Level Check
Check the engine coolant level and add
DEX-COOL®coolant mixture if necessary. SeeEngine
Coolant on page 5-25for further details.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the windshield
washer tank and add the proper uid if necessary.
At Least Once a Month
Tire Ination Check
Visually inspect your tires and make sure tires are
inated to the correct pressures. Do not forget to check
your spare tire. SeeTires on page 5-57for further
details. Check to make sure the spare tire is stored
securely. Push, pull and then try to rotate or turn
the spare tire. If it moves, tighten it. SeeChanging a
Flat Tire on page 5-76.
6-9

Horn............................................................... 3-7
How to Add Coolant to the
Coolant Recovery Tank................................5-32
How to Add Coolant to the Radiator..................5-34
How to Add Fluid............................................5-25
How to Check........................................5-23, 5-66
How to Check Lubricant...................................5-49
How to Check Power Steering Fluid..................5-37
How to Inspect...............................................5-22
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-14
Hydroplaning..................................................4-31
I
ICE POSSIBLE..............................................3-61
If No Steam Is Coming From Your Engine..........5-29
If Steam Is Coming From Your Engine...............5-28
If the Light Is Flashing.....................................3-41
If the Light Is On Steady.................................3-42
If You Are Caught in a Blizzard.........................4-40
If You Are Stuck in Sand, Mud, Ice or Snow.......4-42
If You Do Decide To Pull A Trailer.....................4-56
Ignition Positions.............................................2-20
Infants and Young Children, Restraints...............1-31
Ination - Tire Pressure...................................5-65Instrument Panel
Cluster.......................................................3-33
Overview..................................................... 3-4
Instrument Panel Brightness.............................3-17
Interior Lamps................................................3-17
J
Jump Starting.................................................5-43
K
Keyless Entry System....................................... 2-5
Keys............................................................... 2-3
L
Lamps
Exterior......................................................3-15
Interior.......................................................3-17
Lamps On Reminder.......................................3-16
Lap-Shoulder Belt...................................1-14, 1-23
LATCH System
Child Restraints...........................................1-42
Securing a Child Restraint Designed for the
LATCH System........................................1-44
8

R
Radiator Pressure Cap....................................5-27
Radio Data System (RDS)...............3-64, 3-76, 3-90
Radio Messages.....................................3-70, 3-81
Radios..........................................................3-63
Care of Your Cassette Tape Player...............3-118
Care of Your CD and DVD Player................3-119
Care of Your CDs and DVDs.......................3-119
Navigation/Radio System.............................3-103
Radio Personalization.................................3-115
Radio with Cassette and CD.........................3-75
Radio with CD............................................3-64
Radio with Six-Disc CD................................3-90
Rear Seat Audio........................................3-114
Setting the Time..........................................3-63
Theft-Deterrent..........................................3-116
Understanding Reception............................3-117
Rainsense™ Wipers........................................3-10
RDS Messages..............................3-69, 3-80, 3-94
Reading Lamps..............................................3-18
REAR ACCESS OPEN....................................3-61
Rear Axle......................................................5-49
Locking......................................................4-10
Rear Climate Control System............................3-28
Rear Compartment Storage Panel/Cover............2-48Rear Door Security Locks................................2-13
Rear Floor Storage Lid....................................2-50
Rear Safety Belt Comfort Guides......................1-25
Rear Seat Audio (RSA)..................................3-114
Rear Seat Entertainment System.....................3-104
Rear Seat Operation......................................... 1-5
Rear Seat Passenger Positions.........................1-22
Rear Seat Passengers, Safety Belts..................1-22
Rear Seats (Envoy XL)..................................... 1-7
Rear Storage Area..........................................2-48
Rear Underseat Fuse Block............................5-109
Rear Window Defogger............................3-22, 3-27
Rearview Mirror, Automatic Dimming with
OnStar
®and Compass.................................2-36
Reclining Seatbacks, Power............................... 1-4
Recommended Fluids and Lubricants.................6-12
Recreational Vehicle Towing.............................4-44
Reduced Engine Power Light............................3-46
Remote Control.............................................3-107
Remote Keyless Entry System............................ 2-5
Remote Keyless Entry System, Operation............ 2-6
Removing the Flat Tire and
Installing the Spare Tire................................5-83
Removing the Spare Tire and Tools...................5-77
Replacement Bulbs.........................................5-54
Replacing Brake System Parts..........................5-42
12

Storage Areas
Convenience Net.........................................2-50
Front Storage Area......................................2-46
Glove Box..................................................2-45
Luggage Carrier..........................................2-47
Overhead Console.......................................2-45
Rear Floor Storage Lid.................................2-50
Rear Storage Area.......................................2-48
Storing a Flat or Spare Tire and Tools...............5-88
Stuck in Sand, Mud, Ice or Snow......................4-42
Sun Visors.....................................................2-17
Sunglasses Storage Compartment.....................2-46
Sunroof.........................................................2-52
T
Tachometer....................................................3-35
Taillamps
Turn Signal Lamps......................................5-52
Testing the Alarm............................................2-18
Theft-Deterrent, Radio....................................3-116
Theft-Deterrent Systems...................................2-17
Content Theft-Deterrent................................2-17
Passlock
®...................................................2-19Theft-Deterrent Systems (cont.)
Throttle, Adjustable..........................................2-22
TIGHTEN FUEL CAP......................................3-62
Tilt Wheel........................................................ 3-7
Tire Sidewall Labeling......................................5-58
Tire Size.......................................................5-61
Tire Terminology and Denitions........................5-62
Tires.............................................................5-57
Buying New Tires........................................5-68
Chains.......................................................5-72
Changing a Flat Tire....................................5-76
If a Tire Goes Flat.......................................5-75
Ination - Tire Pressure................................5-65
Inspection and Rotation................................5-66
Spare Tire..................................................5-91
Uniform Tire Quality Grading.........................5-69
Wheel Alignment and Tire Balance.................5-71
Wheel Replacement.....................................5-71
When It Is Time for New Tires......................5-68
To Use the Engine Coolant Heater....................2-23
Top Strap......................................................1-39
Top Strap Anchor Location...............................1-41
Torque Lock...................................................2-32
Total Weight on Your Vehicle’s Tires..................4-59
15