2002 GMC ENVOY lock

3-51 Remote Control
To use the remote control, aim it at the small square
window to the left of the disc slot and press the desired
button. Direct sunlight or very bright light may affect
the ability of the entertainment system to receive signals
from the remote control. Be sure the remote's batteries
are not discharged, as this will also affect the function of
the remote control. Objects blocking the line of sight
may also affect the function of the remote control.
NOTICE:
Do not store the remote control in heat or direct
sunlight. This could damage the remote control
and would not be covered by your warranty.
Keep the remote control stored in a cool, dry place.
Remote Control Buttons
PWR (Power): Press this button to turn the DVD
player on or off.
PLAY/PAUSE: Press this button to play a disc.
Press this button while a disc is playing to pause. Press it
again to continue playing.

STOP: Press this button to stop playing, reversing or
fast forwarding the DVD.

3-57 Rear Seat Audio (If Equipped)
This feature allows rear seat passengers to listen to any
of the music sources including AM
-FM, cassette tapes
or CDs and to use automatic tone control. The rear
seat passengers can only control the music sources
that the front seat passengers are not listening to.
For example, rear seat passengers may listen to a
cassette tape or CD through headphones while the
driver listens to the radio through the front speakers. The rear seat passengers have control of the volume for
each set of headphones. The front seat audio controls
always override the rear seat audio controls.
This feature is intended for rear seat passengers.
The following functions are controlled by the rear seat
audio system buttons:
VOL: Turn the knob clockwise to increase volume
and counterclockwise to decrease volume. The left VOL
knob controls the left headphone and the right VOL
knob controls the right headphone.
PROG: With a cassette tape in the player and the
radio playing, press this button to play a cassette tape.
Press PROG to switch between the tape and compact
disc if both are loaded. Press PROG again to return
to the radio when a cassette tape or compact disc is
playing. The inactive tape or CD will remain safely
inside the radio for future listening.
PWR: Press this button to turn the rear seat audio
system on or off. The rear speakers will be muted
when the power is turned on unless you have a Bose


equipped vehicle. You may operate the rear seat audio
functions even when the primary radio power is off.

3-58
SEEK: Press the SEEK button to tune to the next
higher station and stay there. The display will show
your selection. The sound will mute while seeking.
Press and hold the SEEK button to seek through
your preset radio stations set on your primary radio
pushbuttons. The display will show your selections.
The SEEK button is inactive if the AM FM mode on
the front radio is in use.
While listening to a cassette tape, press the SEEK button
to hear the next selection on the tape. Press and hold
the SEEK button to go to the other side of the tape.
The SEEK button is inactive if the tape mode on the
front radio is in use.
While listening to a CD, press the SEEK button to
hear the next selection on the CD. The SEEK button
is inactive if the CD mode on the front radio or the
CD changer is in use.Theft-Deterrent Feature RDS Radios
THEFTLOCK
is designed to discourage theft of
your radio. The feature works automatically by learning
a portion of the Vehicle Identification Number (VIN).
If the radio is moved to a different vehicle, it will not
operate and LOCKED will be displayed.
When the radio and vehicle are turned off, the blinking
red light indicates that THEFTLOCK is armed.
With THEFTLOCK activated, your radio will not
operate if stolen.

4-7
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. Your brakes may not have time to cool
between hard stops. Your 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 engine ever stops while you're driving, brake
normally but don't pump your brakes. If you do, the
pedal may get harder to push down. If your 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.
Anti-Lock Brake System (ABS)
Your vehicle has anti-lock brakes. ABS is an advanced
electronic braking system that will help prevent a
braking skid.
When you start your engine and begin to drive away,
your anti
-lock brake system will check itself. You may
hear a momentary motor or clicking noise while this test
is going on. This is normal.
If there's a problem with the
anti
-lock brake system, this
warning light will stay on.
See ªAnti
-Lock Brake
System Warning Lightº in
the Index.

4-8
Let's say the road is wet and you're driving safely.
Suddenly an animal jumps out in front of you.
You slam on the brakes and continue braking.
Here's what happens with ABS.
A computer senses that wheels are slowing down. If one
of the wheels is about to stop rolling, the computer will
separately work the brakes at each front wheel and at
both rear wheels.The anti
-lock system can change the brake pressure
faster than any driver could. The computer is
programmed to make the most of available tire and road
conditions. This can help you steer around the obstacle
while braking hard.
As you brake, your computer keeps receiving updates on
wheel speed and controls braking pressure accordingly.

4-9
Remember: Anti-lock doesn't 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 won't 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
anti
-lock brakes.
Using Anti
-Lock
Don't pump the brakes. Just hold the brake pedal down
firmly 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 anti-lock, you can steer and brake at the same
time. In many emergencies, steering can help you more
than even the very best braking.
Traction Assist System (TAS)
(Two
-Wheel Drive Only)
Your vehicle has a Traction Assist System (TAS) that
limits wheel spin. This is especially useful in slippery
road conditions. The system operates only if it senses
that one or both of the rear wheels are spinning or
beginning to lose traction. When this happens, the
system reduces engine power to limit wheel spin.
The LOW TRAC light next to the button will come on
when the TAS is limiting wheel spin. You may hear or
feel the system working, but this is normal.
The Traction Assist System may operate on dry roads
under some conditions. When this happens, you may
notice a reduction in acceleration. This is normal and
doesn't mean there's a problem with your vehicle.
Examples of these conditions include a hard acceleration
in a turn, an abrupt upshift or downshift of the
transmission or driving on rough roads.
If your vehicle is in cruise control when the TAS begins
to limit wheel spin, the cruise control will automatically
disengage. When road conditions allow you to safely
use it again, you may re
-engage the cruise control. See
ªCruise Controlº in the Index. When the TRAC OFF
light on the button is on, the TAS is off and will not
limit wheel spin. Adjust your driving accordingly.

4-10
The TRAC OFF light on the button will come on under
the following conditions:

The Traction Assist System is turned off, either by
pressing the TAS on/off button or turning off the
automatic engagement feature of the TAS.

The transmission is in FIRST (1); TAS will not
operate in this gear. This is normal.

The vehicle is driven on an extremely rough road.
When the vehicle leaves the rough surface, slows
down or stops, the light will go off and TAS will be
on again. This is normal.

A Traction Assist System, Anti
-Lock Brake System
or engine
-related problem has been detected and the
vehicle needs service.
The Traction Assist System, as delivered from the
factory, will automatically come on whenever you start
your vehicle. To limit wheel spin, especially in slippery
road conditions, you should always leave the system on.
But you can turn the TAS off if you ever need to. You
should turn the TAS off if your vehicle ever gets stuck in
sand, mud or snow and rocking the vehicle is required.
See ªRocking Your Vehicleº in the Index.
To turn the system on
or off press the TAS
on/off button located
near the shift lever.
If you used the button
to turn the system off,
the TRAC OFF light
on the button will
come on and stay on.
You can turn the system back on at any time by pressing
the button again. The TRAC OFF light on the button
should go off.
If desired, you can change the TAS automatic
engagement feature so that the system will not come on
automatically when the engine is started. To do so:
1. Park the vehicle with the ignition off and the
transmission in PARK (P).
2. Turn the ignition to RUN; do not start the engine.

4-12
If you need to reduce your speed as you approach a
curve, do it before you enter the curve, while your front
wheels are straight ahead.
Try to adjust your speed so you can ªdriveº through the
curve. Maintain a reasonable, steady speed. Wait to
accelerate until you are out of the curve, and then
accelerate gently into the straightaway.
Steering in Emergencies
There are times when steering can be more effective
than braking. For example, you come over a hill and
find 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 can't; there isn't room.
That's the time for evasive action
-- steering around
the problem.
Your vehicle can perform very well in emergencies like
these. First apply your brakes. See ªBraking in
Emergenciesº earlier in this section. 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.