lock GMC ENVOY DENALI 2007 Manual Online

The RSE system will always transmit the audio
signal by infrared to the wireless headphones,
if there is audio available. See “Headphones”
previously for more information.
The RSE system is capable of outputting audio to
the vehicle speakers by using the radio. The
RSE system may be selected as an audio source
on the radio if the RSE system power is on.
Once the RSE system is selected as an audio
source on the radio, adjust the speaker volume on
the radio, if necessary. If the RSE system power
is not on, the RSE system will not be an available
source on the radio. Refer to the radio information
for the radio that your vehicle has for more
information.
The RSE system is capable of outputting audio to
the wired headphone jacks on the rear seat
audio system (if equipped). The RSE system may
be selected as an audio source on the rear
seat audio system if the RSE system power is on.
Refer toRear Seat Audio (RSA) on page 295
for more information.Video Screen
The video screen is located in the overhead
console.
To use the video screen, do the following:
1. Push forward on the release button located on
the DVD display console.
2. Pull the screen down, away from you, and
adjust its position as desired.
When the video screen is not in use, push it up
into its locked position.
If a DVD is playing and the screen is raised to its
locked position, the screen will shut off, but the
DVD will continue to play through the previous
audio or video source.
The video screen contains the IR transmitters for
the wireless headphones and the IR receivers
for the remote control. If the screen is in the closed
position, the signals will not be available for the
operation of the headphones or the remote control.
Notice:Avoid directly touching the video
screen, as damage may occur. See “Cleaning
the Video Screen” later in this section for
more information.
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Stopping and Resuming Playback
To stop playing a disc, press and release the stop
button on the DVD player faceplate or the
remote control.
To resume playback, press the play/pause button
on the DVD player faceplate or the remote
control. The movie should resume play from where
it was last stopped, if the disc has not been
ejected and the stop button has not been pressed
twice. If the disc has been ejected or if the stop
button has been pressed twice, the disc will
resume play at the beginning.
Ejecting a Disc (DVD Player
without Sunroof)
Press the eject button on the DVD player faceplate
to eject the disc. There is not an eject button on
the remote control.
If a disc is ejected from the player, but is not
removed, the DVD player will reload the disc after
a short period of time. The disc will be stored
in the DVD player. The DVD player will not resume
play of the disc automatically.
Ejecting a Disc (DVD Player with Sunroof)
Press and hold the stop/eject button for more
than two seconds on the DVD player faceplate to
eject the disc. There is not an eject button on
the remote control.
If a disc is ejected from the player, but is not
removed, the DVD player will reload the disc after
a short period of time. The disc will be stored
in the DVD player. The DVD player will not resume
play of the disc automatically.
Remote Control
To use the remote control, aim it at the transmitter
window below the video screen and press the
desired button. Direct sunlight or very bright light
may affect the ability of the RSE system to
receive signals from the remote control. If the
remote control does not seem to be working, the
batteries may need to be replaced. See “Battery
Replacement” later in this section.
Objects blocking the line of sight may also affect
the function of the remote control.
288

SRCE (Source):Press this button to select a
source: radio, cassette tape, CD, or DVD.
The inactive tape, CD, or DVD will remain safely
inside the radio for future listening.
SEEK:Press this button to advance to the next
station or track and stay there. The display
will show the selection. This function is inactive if
the front seat passengers are listening to the
same audio source.
To scan preset stations, press and hold the SEEK
button for two seconds and the radio will
advance to the next preset station. If you continue
to hold the button down, the radio will continue
to advance through the available preset stations.
The display will show the selections. This
function is inactive if the front seat passengers are
listing to the radio.
When a cassette tape is playing, press the SEEK
button to go to the next selection on the tape. Press
and hold the SEEK button to go to the other side of
the tape. This function is inactive if the front seat
passengers are listening to a cassette tape.When a CD is playing, press the SEEK button to
go to the next track on the CD. This function
is inactive if the front seat passengers are listening
to a CD.
When a CD is playing in the six-disc CD player,
press and hold the SEEK button for 2 seconds to
go you to the next CD, if multiple CDs are
loaded. This function is inactive if the front seat
passengers are listening to a CD.
Theft-Deterrent Feature
THEFTLOCK®is designed to discourage theft of
your vehicle’s radio. The feature works
automatically by learning a portion of the Vehicle
Identication Number (VIN). If the radio is
moved to a different vehicle, it does not operate
and LOCKED displays.
When the radio and vehicle are turned off, the
blinking red light indicates that THEFTLOCK
®
is armed.
With THEFTLOCK
®activated, the radio does not
operate if stolen.
296

Your Driving, the Road, and
Your Vehicle............................................ 302
Defensive Driving...................................... 302
Drunken Driving........................................ 303
Control of a Vehicle.................................. 306
Braking...................................................... 306
Anti-Lock Brake System (ABS).................. 307
Braking in Emergencies............................. 309
Locking Rear Axle..................................... 309
StabiliTrak
®System................................... 309
Steering.................................................... 314
Off-Road Recovery.................................... 316
Passing..................................................... 316
Loss of Control.......................................... 318
Off-Road Driving........................................ 319
Driving at Night......................................... 334
Driving in Rain and on Wet Roads............ 335
City Driving............................................... 338Freeway Driving........................................ 339
Before Leaving on a Long Trip.................. 340
Highway Hypnosis..................................... 341
Hill and Mountain Roads........................... 342
Winter Driving........................................... 344
If Your Vehicle is Stuck in Sand, Mud,
Ice, or Snow.......................................... 348
Rocking Your Vehicle to Get It Out........... 348
Loading Your Vehicle................................ 349
Adding a Snow Plow or Similar
Equipment.............................................. 354
Towing........................................................ 354
Towing Your Vehicle ................................. 354
Recreational Vehicle Towing...................... 355
Electronically Controlled Air Suspension
System.................................................. 360
Towing a Trailer........................................ 362
Section 4 Driving Your Vehicle
301

Avoid needless heavy braking. Some people drive
in spurts — heavy acceleration followed by heavy
braking — rather than keeping pace with traffic.
This is a mistake. The brakes may not have time to
cool between hard stops. The brakes will wear out
much faster if you do a lot of heavy braking. If you
keep pace with the traffic and allow realistic
following distances, you will eliminate a lot of
unnecessary braking. That means better braking
and longer brake life.
If your vehicle’s engine ever stops while you are
driving, brake normally but do not pump the
brakes. If you do, the pedal may get harder to
push down. If the engine stops, you will still have
some power brake assist. But you will use it
when you brake. Once the power assist is used
up, it may take longer to stop and the brake pedal
will be harder to push.
Adding non-GM accessories can affect your
vehicle’s performance. SeeAccessories and
Modications on page 380.Anti-Lock Brake System (ABS)
Your vehicle has the Anti-Lock Brake System
(ABS), an advanced electronic braking system that
will help prevent a braking skid.
When you start your engine and begin to drive
away, ABS will check itself. You may hear a
momentary motor or clicking noise while this test
is going on. This is normal.
If there is a problem
with ABS, this warning
light will stay on.
SeeAnti-Lock Brake
System Warning
Light on page 207.
Along with ABS, your vehicle has a Dynamic Rear
Proportioning (DRP) system. If there is a DRP
problem, both the brake and ABS warning lights will
come on accompanied by a 10-second chime.
The lights and chime will come on each time the
ignition is turned on until the problem is repaired.
See your dealer for service.
307

Remember: ABS does not change the time you
need to get your foot up to the brake pedal or
always decrease stopping distance. If you get too
close to the vehicle in front of you, you will not have
time to apply your brakes if that vehicle suddenly
slows or stops. Always leave enough room up
ahead to stop, even though you have ABS.
Using ABS
Do not pump the brakes. Just hold the brake
pedal down rmly and let anti-lock work for you.
You may feel the brakes vibrate, or you may notice
some noise, but this is normal.
Braking in Emergencies
With ABS, you can steer and brake at the same
time. In many emergencies, steering can help you
more than even the very best braking.
Locking Rear Axle
If your vehicle has this feature, your locking rear
axle can give you additional traction on snow, mud,
ice, sand or gravel. It works like a standard axle
most of the time, but when one of the rear wheels
has no traction and the other does, this feature will
allow the wheel with traction to move the vehicle.
StabiliTrak®System
Your vehicle is equipped with StabiliTrak®,
Electronic Stability Control (ESC) which combines
antilock brake, traction and stability control systems
and helps the driver maintain directional control of
the vehicle in most driving conditions.
Traction control activates when the controller
senses wheel spin. StabiliTrak
®will selectively
apply the brakes and reduce engine torque to help
regain traction.
Stability control activates when the controller
senses a discrepancy between your intended path
and the direction the vehicle is travelling.
StabiliTrak
®selectively applies braking pressure at
any one of the vehicle’s brakes to help guide the
vehicle in the direction which you are steering.
When you rst start your vehicle and begin to drive
away, the system performs several diagnostic
checks to insure there are no problems. You may
hear or feel the system working. This is normal and
does not mean there is a problem with your vehicle.
If driving conditions delay system initialization, the
STABILITRAK NOT READY message may be
displayed. If this is the case, your vehicle does not
need servicing.
309

Steering in Emergencies
There are times when steering can be more
effective than braking. For example, you come over
a hill and nd a truck stopped in your lane, or a car
suddenly pulls out from nowhere, or a child darts
out from between parked cars and stops right in
front of you. You can avoid these problems by
braking — if you can stop in time. But sometimes
you cannot; there is not room. That is the time for
evasive action — steering around the problem.
Your vehicle can perform very well in emergencies
like these. First apply your brakes.
SeeBraking on page 306. It is better to remove as
much speed as you can from a possible collision.
Then steer around the problem, to the left or
right depending on the space available.An emergency like this requires close attention
and a quick decision. If you are holding the
steering wheel at the recommended 9 and
3 o’clock positions, you can turn it a full
180 degrees very quickly without removing either
hand. But you have to act fast, steer quickly,
and just as quickly straighten the wheel once you
have avoided the object.
The fact that such emergency situations are always
possible is a good reason to practice defensive
driving at all times and wear safety belts properly.
315

Loss of Control
Let us review what driving experts say about what
happens when the three control systems — brakes,
steering, and acceleration — do not have enough
friction where the tires meet the road to do what the
driver has asked.
In any emergency, do not give up. Keep trying to
steer and constantly seek an escape route or
area of less danger.
Skidding
In a skid, a driver can lose control of the vehicle.
Defensive drivers avoid most skids by taking
reasonable care suited to existing conditions, and
by not overdriving those conditions. But skids
are always possible.
The three types of skids correspond to your
vehicle’s three control systems. In the braking skid,
your wheels are not rolling. In the steering or
cornering skid, too much speed or steering in a
curve causes tires to slip and lose cornering force.
And in the acceleration skid, too much throttle
causes the driving wheels to spin.
A cornering skid is best handled by easing your
foot off the accelerator pedal.If your vehicle starts to slide, ease your foot off
the accelerator pedal and quickly steer the
way you want the vehicle to go. If you start
steering quickly enough, your vehicle may
straighten out. Always be ready for a second skid
if it occurs.
Of course, traction is reduced when water, snow,
ice, gravel, or other material is on the road.
For safety, you will want to slow down and adjust
your driving to these conditions. It is important
to slow down on slippery surfaces because
stopping distance will be longer and vehicle control
more limited.
While driving on a surface with reduced traction, try
your best to avoid sudden steering, acceleration, or
braking, including reducing vehicle speed by
shifting to a lower gear. Any sudden changes could
cause the tires to slide. You may not realize the
surface is slippery until your vehicle is skidding.
Learn to recognize warning clues — such as
enough water, ice, or packed snow on the road to
make a mirrored surface — and slow down when
you have any doubt.
Remember: Any Anti-Lock Brake System (ABS)
helps avoid only the braking skid.
318

Environmental Concerns
Off-road driving can provide wholesome and
satisfying recreation. However, it also raises
environmental concerns. We recognize these
concerns and urge every off-roader to follow these
basic rules for protecting the environment:
Always use established trails, roads, and areas
that have been specially set aside for public
off-road recreational driving; obey all
posted regulations.
Avoid any driving practice that could damage
the environment — shrubs, owers, trees,
grasses — or disturb wildlife. This includes
wheel-spinning, breaking down trees, or
unnecessary driving through streams or over
soft ground.
Always carry a litter bag — make sure all
refuse is removed from any campsite
before leaving.
Take extreme care with open res where
permitted, camp stoves, and lanterns.
Never park your vehicle over dry grass or
other combustible materials that could
catch re from the heat of the vehicle’s
exhaust system.
Traveling to Remote Areas
It makes sense to plan your trip, especially when
going to a remote area. Know the terrain and plan
your route. You are much less likely to get bad
surprises. Get accurate maps of trails and terrain.
Try to learn of any blocked or closed roads.
It is also a good idea to travel with at least
one other vehicle. If something happens to one of
them, the other can help quickly.
Does your vehicle have a winch? If so, be sure to
read the winch instructions. In a remote area, a
winch can be handy if you get stuck. But you will
want to know how to use it properly.
Getting Familiar with Off-Road Driving
It is a good idea to practice in an area that is
safe and close to home before you go into
the wilderness. Off-road driving does require some
new and different skills. Here is what we mean.
Tune your senses to different kinds of signals.
Your eyes, for example, need to constantly sweep
the terrain for unexpected obstacles. Your ears
need to listen for unusual tire or engine sounds.
With your arms, hands, feet, and body, you will
need to respond to vibrations and vehicle bounce.
321

Driving on Off-Road Hills
Off-road driving often takes you up, down, or
across a hill. Driving safely on hills requires good
judgment and an understanding of what your
vehicle can and cannot do. There are some hills
that simply cannot be driven, no matter how
well built the vehicle.
{CAUTION:
Many hills are simply too steep for any
vehicle. If you drive up them, you will stall.
If you drive down them, you cannot control
your speed. If you drive across them, you
will roll over. You could be seriously
injured or killed. If you have any doubt
about the steepness, do not drive the hill.
Approaching a Hill
When you approach a hill, you need to decide if it
is one of those hills that is just too steep to
climb, descend, or cross. Steepness can be hard
to judge. On a very small hill, for example,there may be a smooth, constant incline with only
a small change in elevation where you can
easily see all the way to the top. On a large hill,
the incline may get steeper as you near the
top, but you may not see this because the crest of
the hill is hidden by bushes, grass, or shrubs.
Here are some other things to consider as
you approach a hill.
Is there a constant incline, or does the hill get
sharply steeper in places?
Is there good traction on the hillside, or will
the surface cause tire slipping?
Is there a straight path up or down the hill so
you will not have to make turning maneuvers?
Are there obstructions on the hill that can
block your path, such as boulders, trees, logs,
or ruts?
What is beyond the hill? Is there a cliff, an
embankment, a drop-off, a fence? Get out
and walk the hill if you do not know. It is the
smart way to nd out.
Is the hill simply too rough? Steep hills often
have ruts, gullies, troughs, and exposed
rocks because they are more susceptible to
the effects of erosion.
324