2007 GMC ENVOY tow

Parking Brake
To set the parking brake, hold the regular brake
pedal down with your foot and pull up on the
parking brake lever located between the seats.
If the ignition is on, the brake system warning light
on the instrument panel cluster will come on.
SeeBrake System Warning Light on page 206.To release the parking brake, hold the regular
brake pedal down. Pull the parking brake lever up
until you can press in the button at the end of
the lever. Hold the button in as you move
the parking brake lever all the way down.
Notice:Driving with the parking brake on can
overheat the brake system and cause
premature wear or damage to brake system
parts. Verify that the parking brake is fully
released and the brake warning light is
off before driving.
If you are towing a trailer and you must park on a
hill, seeTowing a Trailer on page 362.
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Shifting Into Park (P)
{CAUTION:
It can be dangerous to get out of your
vehicle if the shift lever is not fully in
PARK (P) with the parking brake rmly
set. Your vehicle can roll. If you have left
the engine running, the vehicle can move
suddenly. You or others could be injured.
To be sure your vehicle will not move,
even when you are on fairly level
ground, use the steps that follow. With
four-wheel drive, your vehicle will be free
to roll — even if your shift lever is in
PARK (P) — if your transfer case is in
NEUTRAL. So, be sure the transfer case is
in a drive gear — not in NEUTRAL. See
Four-Wheel Drive on page 122. Always put
the shift lever fully in PARK (P) with the
parking brake rmly set. If you are pulling
a trailer, seeTowing a Trailer on page 362.To shift into PARK (P), do the following:
1. Hold the brake pedal down with your foot and
set the parking brake.
2. Move the shift lever into PARK (P) by pressing
the button on the side of the shift lever and
pushing the lever all the way toward the front
of the vehicle.
3. Turn the ignition key to LOCK.
4. Remove the key and take it with you. You
know your vehicle is in PARK (P) if the key
can be removed from the ignition.
127

{CAUTION:
If your vehicle has four-wheel drive, it will
be free to roll — even if the shift lever is
in PARK (P) — if the transfer case is in
NEUTRAL. So be sure the transfer case is
in a drive gear — not in NEUTRAL. See
Four-Wheel Drive on page 122.
Follow the proper steps to be sure your vehicle
will not move. SeeShifting Into Park (P) on
page 127.
If you are pulling a trailer, seeTowing a Trailer on
page 362.
Mirrors
Manual Rearview Mirror
Your vehicle may have this feature. While sitting in
a comfortable driving position, adjust the rearview
mirror so you can see clearly behind your
vehicle. Grip the mirror in the center to move it up
or down and side to side. The day/night control,
located at the bottom of the mirror, adjusts
the mirror to reduce headlamp glare from behind
during evening or dark conditions. Turn the
control clockwise for night use; return it to the
center for daytime use.
Manual Rearview Mirror with
OnStar
®
Your vehicle may have a rearview mirror with the
OnStar®system.
Control buttons for the OnStar
®system are at the
bottom of the mirror. See your dealer for more
information on the OnStar
®system and how
to subscribe to OnStar®. Also, seeOnStar®
System on page 145for more information about
the services OnStar®provides.
133

Compass Calibration
The compass may need calibration if one of the
following occurs:
After approximately ve seconds, the display
does not show a compass heading (N for
North, for example), there may be a strong
magnetic eld interfering with the compass.
Such interference may be caused by a
magnetic antenna mount, magnetic note pad
holder or a similar magnetic item.
The compass does not display the correct
heading and the compass zone variance
is set correctly.
In order to calibrate, CAL must be displayed in the
mirror compass windows. If CAL is not displayed,
press and hold the on/off button until CAL is
displayed.
The compass can be calibrated by driving the
vehicle in circles at 5 mph (8 km/h) or less until the
display reads a direction.
Passenger Airbag Indicator
The vehicle may be equipped with a passenger
airbag indicator, on the mirror glass, just above the
buttons. If the vehicle has this feature, the
mirror will display the word ON, or an airbag
symbol in Canada, when the passenger airbag is
enabled. For more information, seePassenger
Sensing System on page 82.
Cleaning the Mirror
When cleaning the mirror, use a paper towel or
similar material dampened with glass cleaner.
Do not spray glass cleaner directly on the mirror
as that may cause the liquid cleaner to enter
the mirror housing.
Automatic Dimming Rearview Mirror
with Compass
Your vehicle may have an automatic-dimming
rearview mirror with a compass.
O(On/Off):This is the on/off button for the
automatic dimming feature and compass.
138

3. Press the COMP button on the bottom of the
mirror until the new zone number appears in
the display. After you stop pressing the
button, the display will show a compass
direction within a few seconds.
Passenger Airbag Indicator
The mirror may be equipped with a passenger
airbag indicator on the mirror glass, just above the
buttons. If the vehicle has this feature the mirror
will display the word ON, or an airbag symbol
in Canada, when the passenger airbag is enabled.
For more information seePassenger Sensing
System on page 82.
Cleaning the Mirror
When cleaning the mirror, use a paper towel or
similar material dampened with glass cleaner.
Do not spray glass cleaner directly on the mirror
as that may cause the liquid cleaner to enter
the mirror housing.
143

Outside Manual Mirrors
If the vehicle has the manual outside mirrors,
adjust each outside mirror so that a little of
the vehicle and the area behind it can be seen
while sitting in a comfortable, driving position.
Both mirrors can be manually folded inward
by pulling them towards the vehicle. Push the
mirrors away from the vehicle, to the normal
position, before driving.
Outside Power Mirrors
Your vehicle may have this feature. The power
mirror control is located on the driver’s door.
Turn the knob counterclockwise or clockwise to
adjust the driver’s or passenger’s mirror so
that you can see a little of the side of your vehicle.
After adjusting the position of the mirrors, turn
the knob to the center position so that the mirrors
cannot move.
If the travel position in any direction of the mirror is
reached, it will enter a ratcheting mode. This action
is harmless. It is a warning that the mirror can go no
further. To stop this action, back the mirror up by
moving the knob in the opposite direction.The mirrors can be manually folded inward to
prevent damage when going through an automatic
car wash. To fold, push the mirror toward the
vehicle. To return the mirror to its original position,
push outward. Be sure to return both mirrors to
their original unfolded position before driving.
Outside Curb View Assist Mirror
If the vehicle has this feature, the passenger’s
outside mirror will adjust to a preset tilt position
while the vehicle is in REVERSE (R) gear.
Curb view assist may be useful when you are
parallel parking. The mirror will return to normal
position when the vehicle is shifted out of
REVERSE (R) gear. Automatic mirror movement
in either direction will follow a short delay.
You may be able to turn this feature on or off
through the Driver Information Center (DIC). See
DIC Vehicle Customization on page 229.
144

To prevent damage or loss of cargo as you are
driving, check now and then to make sure
the luggage carrier is locked and cargo is still
securely fastened.
When the luggage carrier is not in use, place the
crossrails at the following positions for wind
noise reduction. Place one crossrail at the rear
most point of the vehicle and the other crossrail
above the opening of the rear door.
Rear Floor Storage Lid
{CAUTION:
If any removable convenience item is not
secured properly, it can move around in a
collision or sudden stop. People in the
vehicle could be injured. Be sure to
secure any such item properly.
Your vehicle has a rear cargo area with a
removable storage lid.To remove the rear oor storage lid, do the
following:
1. Press the latch release and lift up the latch
handle.
2. Raise the lid slightly to unhook it.
3. Pull the lid toward you to release it from the
forward mounting tabs.
To reinstall the rear oor storage lid, reverse the
previous steps. Make sure the lid is secure by
applying slight pressure to the latch until you hear
it click.
Convenience Net
Your vehicle may have this feature. A convenience
net in the rear of your vehicle helps keep small
items in place during sharp turns or quick
stops and starts. The net is not designed to retain
these items during off-road use. The net is not
for larger, heavier items.
162

Tilt Wheel
The steering wheel should be adjusted before
you drive.
The tilt lever is located
to the left of the steering
column, under the
turn signal lever.
It can be raised to the highest level to give
your legs more room when you enter and exit
the vehicle.
To tilt the wheel, hold the steering wheel and pull
the lever toward you. Move the steering wheel
to a comfortable level, then release the lever
to lock the wheel in place.
Turn Signal/Multifunction Lever
The lever on the left side of the steering column
includes the following:
GTurn and Lane Change Signals
23Headlamp High/Low-Beam Changer
Flash-to-Pass Feature
NWindshield Wipers
JWindshield Washer
ICruise Control
171