2004 GMC ENVOY XL ECU

Securing a Child Restraint in the
Right Front Seat PositionIf your child restraint is equipped with the LATCH
system, seeLower Anchorages and Top Tethers for
Children (LATCH System) on page 1-40. SeeTop Strap
on page 1-37if the child restraint has one.
There is no top strap anchor in the right front passenger’s
position. Do not secure a child seat in this position if a
national or local law requires that the top strap be
anchored, or if the instructions that come with the child
restraint say that the top strap must be anchored.
Your vehicle has a right front passenger air bag.Never
put a rear facing child restraint in this seat. Here is why:
{CAUTION:
A child in a rear-facing child restraint can be
seriously injured or killed if the right front
passenger’s air bag inates. This is because
the back of the rear-facing child restraint
would be very close to the inating air bag.
Always secure a rear-facing child restraint in
a rear seat.
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A rear seat is a safer place to secure a forward-facing
child restraint. If you need to secure a forward-facing
child restraint in the right front seat, you will be using the
lap-shoulder belt to secure the child restraint in this
position. Be sure to follow the instructions that came with
the child restraint. Secure the child in the child restraint
when and as the instructions say.
1. Because your vehicle has a right front passenger’s
air bag, always move the seat as far back as it will
go before securing a forward-facing child restraint.
See “Seats” in the Index.
2. Put the child restraint on the seat.
3. Pick up the latch plate, and run the lap and shoulder
portions of the vehicle’s safety belt through or
around the restraint. The child restraint instructions
will show you how.
4. Buckle the belt. Make sure the release button is
positioned so you would be able to unbuckle the
safety belt quickly if you ever had to.
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7. Push and pull the child restraint in different
directions to be sure it is secure.
To remove the child restraint, just unbuckle the vehicle’s
safety belt and let it go back all the way. The safety
belt will move freely again and be ready to work for an
adult or larger child passenger.
Air Bag Systems
This part explains the frontal and side impact air bag
systems.
Your vehicle has air bags – a frontal air bag for the
driver and another frontal air bag for the right front
passenger. Your vehicle may also have side impact
air bags. Side impact air bags are available for the
driver and right front passenger.
If your vehicle has a side impact air bag for the driver
and/or the right front passenger, the words AIR BAG
will appear on the air bag covering on the side of
the seatback closest to the door.Frontal air bags are designed to help reduce the risk
of injury from the force of an inating frontal air bag.
But these air bags must inate very quickly to do their
job and comply with federal regulations.
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{CAUTION:
Both frontal and side impact air bags inate
with great force, faster than the blink of an
eye. If you are too close to an inating air bag,
as you would be if you were leaning forward,
it could seriously injure you. Safety belts
help keep you in position for air bag ination
before and during a crash. Always wear
your safety belt, even with frontal air bags.
The driver should sit as far back as possible
while still maintaining control of the vehicle.
Front occupants should not lean on or sleep
against the door.
{CAUTION:
Anyone who is up against, or very close to,
any air bag when it inates can be seriously
injured or killed. Air bags plus lap-shoulder
belts offer the best protection for adults, but
not for young children and infants. Neither the
vehicle’s safety belt system nor its air bag
system is designed for them. Young children
and infants need the protection that a child
restraint system can provide. Always secure
children properly in your vehicle. To read how,
see the part of this manual called “Older
Children” or “Infants and Young Children.”
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Keys...............................................................2-3
Remote Keyless Entry System.........................2-5
Remote Keyless Entry System Operation...........2-6
Doors and Locks.............................................2-8
Power Door Locks..........................................2-9
Delayed Locking...........................................2-10
Programmable Automatic Door Locks..............2-10
Rear Door Security Locks..............................2-13
Lockout Protection........................................2-13
Leaving Your Vehicle....................................2-13
Liftgate/Liftglass............................................2-14
Windows........................................................2-15
Power Windows............................................2-16
Sun Visors...................................................2-17
Theft-Deterrent Systems..................................2-17
Content Theft-Deterrent.................................2-17
Passlock
®....................................................2-19
Starting and Operating Your Vehicle................2-19
New Vehicle Break-In....................................2-19
Ignition Positions..........................................2-20Starting Your Engine.....................................2-21
Adjustable Throttle and Brake Pedal................2-22
Engine Coolant Heater..................................2-23
Automatic Transmission Operation...................2-24
Four-Wheel Drive..........................................2-26
Parking Brake..............................................2-29
Shifting Into Park (P).....................................2-31
Shifting Out of Park (P).................................2-33
Parking Over Things That Burn.......................2-33
Engine Exhaust............................................2-34
Running Your Engine While
You Are Parked........................................2-34
Mirrors...........................................................2-36
Automatic Dimming Rearview Mirror
with OnStar
®and Compass........................2-36
Outside Manual Mirrors..................................2-38
Outside Power Mirrors...................................2-38
Outside Curb View Assist Mirrors....................2-39
Outside Convex Mirror...................................2-39
Outside Heated Mirrors..................................2-39
Section 2 Features and Controls
2-1

Rear Door Security Locks
Your vehicle may have this feature. You can lock the
rear doors so they can’t be opened from the inside
by passengers. To use one of these locks do the
following:
1. Open one of the rear doors. You will nd a
security lock lever located on the inside edge
of each rear door.
2. Move the lever down
to engage the safety
lock. Move the lever
up to disengage
the safety lock.
3. Close the door.The rear doors of your vehicle cannot be opened from
the inside while this feature is in use. If you want to open
the rear door while the security lock is on, unlock the
door and open the door from the outside.
Lockout Protection
This feature stops the power door locks from locking
when the key is in the ignition and a door is open
to protect you from locking your key in the vehicle.
If the power lock switch is pressed when a door is open
and the key is in the ignition, all the doors will lock
and then the driver’s door will unlock.
Leaving Your Vehicle
If you are leaving the vehicle, take your key, open your
door and set the lock from inside. Then get out and
close the door.
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Sun Visors
To block out glare, you can pull the visor down. You
can also slide the visor along the rod from side-to-side
to cover the driver or passenger front window.
Visor Vanity Mirror
Pull the sun visor down to expose the vanity mirror.
Lighted Visor Vanity Mirror
Your vehicle may have this feature. Pull the sun visor
down and lift the mirror cover to turn on the lamps.
The lamps will turn off when the cover is closed.
Theft-Deterrent Systems
Vehicle theft is big business, especially in some cities.
Although your vehicle has a number of theft-deterrent
features, we know that nothing we put on it can make
it impossible to steal. However, there are ways you
can help.
Content Theft-Deterrent
Your vehicle may be equipped with a content
theft-deterrent alarm system.
Here’s how to operate the system:
1. Open the door.
2. Lock the door with the power door lock switch or
the remote keyless entry transmitter. The security
light should ash.
3. Close all doors. The security light should turn off
after approximately 30 seconds. The alarm is not
armed until the security light turns off.United States
Canada
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If a locked door is opened without the key or the
remote keyless entry transmitter, the alarm will go off.
The headlamps and parking lamps will ash for two
minutes, and the horn will sound for 30 seconds, then
will turn off to save the battery power.
Remember, the theft-deterrent system won’t activate
if you lock the doors with a key or use the manual door
lock. It activates only if you use a power door lock
switch with the door open, or with the remote keyless
entry transmitter. You should also remember that
you can start your vehicle with the correct ignition key
if the alarm has been set off.
Here’s how to avoid setting off the alarm by accident:
If you don’t want to activate the theft-deterrent
system, the vehicle should be locked with the
door keyafterthe doors are closed.
Always unlock a door with a key, or use the remote
keyless entry transmitter. Unlocking a door any
other way will set off the alarm.
If you set off the alarm by accident, unlock any door
with the key. You can also turn off the alarm by pressing
unlock on the remote keyless entry transmitter. The alarm
won’t stop if you try to unlock a door any other way.
Testing the Alarm
The alarm can be tested by following these steps:
1. From inside the vehicle, lower the driver’s window
and open the driver’s door.
2. Activate the system by locking the doors with
the power door lock switch while the door is
open, or with the remote keyless entry transmitter.
3. Get out of the vehicle, close the door and wait for
the security light to go out.
4. Then reach in through the window, unlock the
door with the manual door lock and open the
door. This should set off the alarm.
When the alarm is set the power door unlock switch
is not operational.
If the alarm does not sound when it should but the
headlamps ash, check to see if the horn works.
The horn fuse may be blown. To replace the fuse,
seeFuses and Circuit Breakers on page 5-97.
If the alarm does not sound or the headlamps do not
ash, the vehicle should be serviced by your dealer.
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