2004 GMC ENVOY XUV ECU

Keys...............................................................2-2
Remote Keyless Entry System.........................2-4
Remote Keyless Entry System Operation...........2-5
Doors and Locks.............................................2-7
Door Locks....................................................2-7
Power Door Locks..........................................2-8
Delayed Locking.............................................2-8
Programmable Automatic Door Locks................2-9
Rear Door Security Locks..............................2-11
Lockout Protection........................................2-11
Leaving Your Vehicle....................................2-11
Midgate.......................................................2-12
Tailgate.......................................................2-13
Power Roof.................................................2-17
Windows........................................................2-19
Power Windows............................................2-20
Sun Visors...................................................2-21
Theft-Deterrent Systems..................................2-22
Content Theft-Deterrent.................................2-22
Passlock
ž....................................................2-23
Starting and Operating Your Vehicle................2-24
New Vehicle Break-In....................................2-24
Ignition Positions..........................................2-24
Starting Your Engine.....................................2-26
Adjustable Throttle and Brake Pedal................2-27
Engine Coolant Heater..................................2-28
Automatic Transmission Operation...................2-29Four-Wheel Drive..........................................2-31
Parking Brake..............................................2-35
Shifting Into Park (P).....................................2-36
Shifting Out of Park (P).................................2-38
Parking Over Things That Burn.......................2-38
Engine Exhaust............................................2-39
Running Your Engine While You Are Parked. . . .2-39
Mirrors...........................................................2-41
Automatic Dimming Rearview Mirror with
OnStar
žand Compass...............................2-41
Outside Manual Mirrors..................................2-43
Outside Power Mirrors...................................2-43
Outside Convex Mirror...................................2-44
Outside Heated Mirrors..................................2-44
Outside Automatic Dimming Mirror with Curb
View Assist..............................................2-44
OnStar
žSystem.............................................2-45
HomeLinkžTransmitter...................................2-47
Programming the HomeLinkžTransmitter.........2-47
Storage Areas................................................2-51
Glove Box...................................................2-51
Overhead Console........................................2-51
Front Storage Area.......................................2-51
All-Weather Cargo Area.................................2-52
Vehicle Personalization...................................2-54
Memory Seat...............................................2-54
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.
2-11

4. Press the midgate release button located on the
driver's side of the midgate while pulling the
release handle.
5. Lower the midgate and secure it in the down
position by engaging the midgate to the ¯oor
support. The latch for the ¯oor support is found on
the driver's side of the vehicle.
Raising the Midgate
To return the midgate to its normal position, release the
midgate by pulling up on the lever found on the
driver's side midgate support. Reverse the steps for
lowering the midgate listed previously. The midgate must
be fully latched on both sides before the midgate
glass can be raised.
Tailgate
Your vehicle is equipped with a tailgate which can be
swung out or opened ¯at. It can be locked and unlocked
with the driver or passenger door power lock button
or the remote keyless entry transmitter. The tailgate has
power rear glass. The glass must be fully lowered to
open the tailgate to its ¯at position.
The power roof and tailgate must both be fully closed to
raise the rear glass. If the roof or tailgate are not fully
closed, the words CLOSE THE ROOF or CLOSE
THE TAILGATE will appear on the DIC when you try to
raise the rear glass.
If the tailgate drop/swing, power roof, rear wiper and
rear window defogger functions are inoperative, or SEE
MANUAL± TAILGATE is displayed on the Driver
Information Center, the tailgate window position needs
to be reset. To reset the window position, activate
the tailgate window up switch and continue to hold it for
two seconds after the window is fully closed. Then
activate the tailgate window down switch and continue
to hold it for two seconds after the window is fully open.
If this process does not restore function, see your
dealer for service.
2-13

Opening the Tailgate
To open the tailgate, the vehicle must be in PARK (P)
and the doors must be unlocked. To open the tailgate to
a ¯at position, the tailgate glass must ®rst be fully
lowered. Once the tailgate glass has been fully lowered,
open the tailgate by grasping its handle near the
middle and pulling the gate toward you.
To close the tailgate, use the integrated pocket at the
top of the tailgate. Firmly push the tailgate upward until it
latches. Do not grab the wiper arm/blade to close the
tailgate.
Notice:Closing the tailgate using the wiper
arm/blade may damage the vehicle. Close the
tailgate using only the pocket.
To swing the tailgate out, grasp the tailgate by its
handle near the driver's side. If the tailgate glass is fully
closed, it will ®rst drop slightly to clear the upper roof
seal. If you release the handle before the tailgate opens,
the glass will return to the fully closed position.
The tailgate may then be swung out.
To close the tailgate, ®rmly push it toward the vehicle
until it latches. If the tailgate glass was fully closed when
you opened the tailgate, it will return to a fully closed
position when you close the tailgate.The tailgate is equipped with a prop rod to aid in
supporting heavy loads and to support four foot by eight
foot building material when placed in the secondary
position. In the secondary position, the tailgate is raised
approximately six degrees. With the tailgate in the ¯at
position, remove the prop rod from the retaining clip on
the driver's side. Rotate the rod forward and engage the
end of the slotted stud on the side of the vehicle opening.
Push down to lock the rod in place. Two slotted studs on
the vehicle provide two positions for the tailgate. The prop
rod must be in the stowed position and secured in the
retaining clip before closing the tailgate.Tailgate Prop Rod
2-15

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 come on and stay on.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.
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
key
afterthe 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.
2-22

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, see
Fuses and Circuit Breakers on page 5-93.
If the alarm does not sound or the headlamps do not
¯ash, the vehicle should be serviced by your dealer.
Passlockž
Your vehicle is equipped with the
Passlockžtheft-deterrent system.
Passlock
žis a passive theft-deterrent system.
Passlockženables fuel if the ignition lock cylinder is
turned with a valid key. If a correct key is not used or the
ignition lock cylinder is tampered with, the fuel system
is disabled and the vehicle will not start.
During normal operation, the security light will turn off
approximately ®ve seconds after the key is turned
to RUN.
If the engine stalls and the security light ¯ashes, wait
about 10 minutes until the light stops ¯ashing before
trying to restart the engine. Remember to release
the key from START as soon as the engine starts.
If the engine does not start after three tries, the vehicle
needs service.
If the engine is running and the security light comes on,
you will be able to restart the engine if you turn the
engine off. However, your Passlock
žsystem is
not working properly and must be serviced by your
dealer. Your vehicle is not protected by Passlock
žat this
time. You may also want to check the fuse. See your
dealer for service.
2-23

OnStaržSystem
Your vehicle may have this feature. OnStaržuses
global positioning system (GPS) satellite technology,
wireless communications, and state of the art call
centers to provide you with a wide range of safety,
security, information and convenience services.
A complete OnStar
žuser's guide and the terms and
conditions of the OnStaržSubscription Service
Agreement are included in your OnStarž-equipped
vehicle's glove box literature. For more information, visit
www.onstar.com, contact OnStar
žat 1-888-4-ONSTAR
(1-888-466-7827), or press the blue OnStaržbutton
to speak to an OnStaržadvisor 24 hours a day, 7 days
a week.
A completed Subscription Service Agreement is required
prior to delivery of OnStar
žservices and prepaid
calling minutes are also required for OnStaržPersonal
Calling and OnStaržVirtual Advisor use. Terms and
conditions of the Subscription Service Agreement can be
found at www.onstar.com.
OnStaržServices
One of the following plans is normally included for a
speci®c duration with each vehicle equipped with
OnStar
ž. You can upgrade or extend your OnStarž
service plan to meet your needs.
Safe and Sound Plan
·
Automatic Noti®cation of Air Bag Deployment
·Emergency Services
·Roadside Assistance
·Stolen Vehicle Assistance
·AccidentAssist
·Remote Door Unlock
·Remote Diagnostics
·Online Concierge
Directions and Connections Plan
·
All Safe and Sound Plan services
·Route Support
·RideAssist
·Information and Convenience Services
2-45

HomeLinkžTransmitter
HomeLinkž, a combined universal transmitter and
receiver, provides a way to replace up to three
hand-held transmitters used to activate devices such as
gate operators, garage door openers, entry door
locks, security systems and home lighting. Additional
HomeLink
žinformation can be found on the internet at
www.homelink.com or by calling 1- 800- 355- 3515.
If your vehicle is equipped with the HomeLink
ž
Transmitter, it complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired
operation.This device complies with RSS- 210 of Industry Canada.
Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this
device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes and modi®cations to this system by other than
an authorized service facility could void authorization
to use this equipment.
Programming the HomeLinkž
Transmitter
Do not use the HomeLinkžTransmitter with any garage
door opener that does not have the ªstop and reverseº
feature. This includes any garage door opener model
manufactured before April 1, 1982. If you have a newer
garage door opener with rolling codes, please be
sure to follow steps 6 through 8 to complete the
programming of your HomeLink
žTransmitter.
Read the instructions completely before attempting to
program the HomeLink
žTransmitter. Because of
the steps involved, it may be helpful to have another
person available to assist you in programming the
transmitter.
2-47