2004 GMC ENVOY XL seats

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-5
Safety Belts
.............................................. 1-8
Child Restraints
.......................................1-27
Air Bag Systems
......................................1-49
Restraint System Check
............................1-59
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-8
Windows
.................................................2-15
Theft-Deterrent Systems
............................2-17
Starting and Operating Your Vehicle
...........2-19
Mirrors
....................................................2-36
OnStar
®System
......................................2-40
HomeLink®Transmitter
.............................2-42
Storage Areas
.........................................2-46
Sunroof
..................................................2-53
Vehicle Personalization
.............................2-53
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-22
Warning Lights, Gages, and Indicators
........3-35
Driver Information Center (DIC)
..................3-51
Audio System(s)
.......................................3-64Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-45
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-4
Checking Things Under the Hood
...............5-10
Rear Axle
...............................................5-48
Four-Wheel Drive
.....................................5-49
Front Axle
...............................................5-50
Bulb Replacement
....................................5-51
Windshield Wiper Blade Replacement
.........5-53
Tires
......................................................5-55
Appearance Care
.....................................5-88
Vehicle Identication
.................................5-95
Electrical System
......................................5-96
Capacities and Specications
...................5-109
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance and Information.............. 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-11
Index................................................................ 1
2004 GMC Envoy/Envoy XL Owner ManualM

Vehicle Damage Warnings
Also, in this manual you will nd these notices:
Notice:These mean there is something that could
damage your vehicle.
A notice tells about something that can damage your
vehicle. Many times, this damage would not be covered
by your vehicle’s warranty, and it could be costly. But
the notice will tell you what to do to help avoid the
damage.
When you read other manuals, you might see CAUTION
and NOTICE warnings in different colors or in different
words.
There are also warning labels on your vehicle. They use
the same words, CAUTION or NOTICE.
Vehicle Symbols
The vehicle has components and labels that use
symbols instead of text. Symbols are shown along
with the text describing the operation or information
relating to a specic component, control, message,
gage, or indicator.
If you need help guring out a specic name of a
component, gage, or indicator, reference the following
topics:
Seats and Restraint Systems in Section 1
Features and Controls in Section 2
Instrument Panel Overview in Section 3
Climate Controls in Section 3
Warning Lights, Gages, and Indicators in Section 3
Audio System(s) in Section 3
Engine Compartment Overview in Section 5
iv

Front Seats......................................................1-2
Power Seats..................................................1-2
Power Lumbar...............................................1-2
Heated Seats.................................................1-3
Power Reclining Seatbacks..............................1-4
Head Restraints.............................................1-5
Rear Seats.......................................................1-5
Rear Seat Operation.......................................1-5
Safety Belts.....................................................1-8
Safety Belts: They Are for Everyone.................1-8
Questions and Answers About Safety Belts......1-13
How to Wear Safety Belts Properly.................1-14
Driver Position..............................................1-14
Safety Belt Use During Pregnancy..................1-20
Right Front Passenger Position.......................1-21
Rear Seat Passengers..................................1-21
Rear Safety Belt Comfort Guides for
Children and Small Adults..........................1-24
Safety Belt Extender.....................................1-26
Child Restraints.............................................1-27
Older Children..............................................1-27
Infants and Young Children............................1-29
Child Restraint Systems.................................1-33
Where to Put the Restraint.............................1-36Top Strap....................................................1-37
Top Strap Anchor Location.............................1-39
Lower Anchorages and Top Tethers
for Children (LATCH System)......................1-40
Securing a Child Restraint Designed
for the LATCH System...............................1-42
Securing a Child Restraint in a
Rear Outside Seat Position.........................1-43
Securing a Child Restraint in the
Center Seat Position..................................1-45
Securing a Child Restraint in the
Right Front Seat Position............................1-46
Air Bag Systems............................................1-49
Where Are the Air Bags?...............................1-52
When Should an Air Bag Inate?....................1-55
What Makes an Air Bag Inate?.....................1-56
How Does an Air Bag Restrain?.....................1-56
What Will You See After an Air Bag Inates?.......1-57
Servicing Your Air Bag-Equipped Vehicle.........1-59
Restraint System Check..................................1-59
Checking Your Restraint Systems...................1-59
Replacing Restraint System Parts
After a Crash............................................1-60
Section 1 Seats and Restraint Systems
1-1

Front Seats
Power Seats
Your vehicle may have
this feature. The power
seat controls are located
on the outboard side of
the front seat cushions.
The horizontal control
adjusts the seat cushion
and the vertical control
adjusts the seatback.
Move the front of the horizontal seat control up or
down to adjust the front portion of the cushion.
Move the rear of the seat control up or down to
adjust the rear portion of the cushion.
Lift up or push down on the center of the seat
control to move the entire seat up or down.
To move the seat forward or rearward, slide the
seat control forward or rearward.
To recline the seatback, press the vertical control
rearward. To raise the seatback, press the vertical
control forward. SeePower Reclining Seatbacks
on page 1-4for more information.
Power Lumbar
Your vehicle may have this feature. The seatback
lumbar support can be adjusted by moving a control
located on the outboard side of the seat cushions.
To increase or decrease support, hold the control
forward or rearward. Keep in mind that as your seating
position changes, as it may during long trips, so should
the position of your lumbar support. Adjust the seat as
needed.
1-2

Heated Seats
Your vehicle may have
heated front seats. The
buttons used to control
this feature are located
on the front door armrests.
The engine must be
running for the heated
seat feature to work.
To heat the entire seat, press the horizontal button with
the heated seat symbol. Press the button repeatedly to
cycle through the temperature settings of high, medium,
low and off.The indicator lights will glow to designate the level of heat
selected: three for high, two for medium and one for low.
The low setting warms the seatback and cushion until the
seat temperature is near body temperature. The medium
and high settings heat the seatback and seat cushion to a
slightly higher temperature. You will be able to feel heat in
about two minutes.
To heat only the seatback, press the button with the
words BACK ONLY. An indicator light on the switch will
glow to designate that only the seatback is being
heated. Additional presses will cycle through the heat
levels for the seatback only. Press the horizontal button
again to heat the whole seat.
The feature will shut off automatically when the ignition
is turned off.
1-3

Power Reclining Seatbacks
Your vehicle may have this feature. The vertical power
seat control described earlier allows the seatback to
recline. SeePower Seats on page 1-2for more
information.
But don’t have a seatback reclined if your vehicle is
moving.{CAUTION:
Sitting in a reclined position when your vehicle
is in motion can be dangerous. Even if you
buckle up, your safety belts can’t do their job
when you’re reclined like this.
The shoulder belt can’t do its job. In a crash,
you could go into it, receiving neck or other
injuries.
The lap belt can’t do its job either. In a crash
the belt could go up over your abdomen.
The belt forces would be there, not at your
pelvic bones. This could cause serious
internal injuries.
For proper protection when the vehicle is in
motion, have the seatback upright. Then sit
well back in the seat and wear your safety belt
properly.
1-4

Head Restraints
Adjust your head restraint so that the top of the restraint
is closest to the top of your head. This position reduces
the chance of a neck injury in a crash.
The head restraints lock into place when raised.
To release the head restraint and lower it, press the
tab located on the top of the seatback.
Rear Seats
Rear Seat Operation
Your vehicle may have a folding rear seat which lets
you fold the seatbacks down for more cargo space.
Pull up on the loop located where the seat cushion
meets the seatback to fold the seat cushion up and out
of the way. This will allow the seatback to fold at
and increase the cargo area.
1-5

Rear Seats (Envoy XL)
The second row seat is a 65/35 split seat which may be
folded and tumbled. Use this feature for gaining access
to the third row seats.
To fold and tumble the second row seat(s), do the
following:
1. Push the head restraints fully down.
2. Fold the seatback at on the seat by pulling up on
the front part of the lever. The lever is located on
the outboard side of the seat (indicated as 1 on the
handle side cover).
3. Release the rear set of seat hooks from the oor
pins by pulling up on the rear part of the lever
(indicated as 2 on the handle side cover). This
enables the seat to be tumbled forward.
Returning the Seats to an Upright Position
To return the seat(s) to the upright position, do the
following:
1. Return the seat to the oor pins by rotating the
seat down to reengage the seat hooks.
2. Try to raise the seat to check that it is locked down.
3. Pull the seat back up to return it to the upright
position.
Entry/Exit to/from the Third Row Seat
To enter the third row seat, you must fold and tumble
the second row seat following the instructions given
previously.
If you are exiting the third row with no assistance,
do the following.
1. Pull the handle on the center of the second row
seatback down to release and fold the seatback.
2. Reach around to the side of the second row seat
and pull the back of the seat lever up to tumble
the entire seat.
Be sure to return the seat to the upright position when
you are nished. Never use the third row seat as a
seating position while the second row is folded
and tumbled.
1-7