2002 GMC ENVOY clock

3-25
Press the AUTO TONE button to scroll through your
choices. Select TALK when listening to non
-musical
material such as news, talk shows, sports broadcasts and
books on tape. This setting makes spoken words sound
very clear. Select DRIVER to give the driver the best
possible sound qualities. Select NORMAL to enhance
the stereo effect. Select SPATIAL to make the listening
space seem larger. When NORMAL is displayed, the
system will provide the best overall Bose performance.
The radio saves separate AUTO TONE settings for each
preset and source.
Adjusting the Speakers (Balance/Fade)
To adjust the balance, press and release the P
-TYPE
LIST AUDIO control until BAL appears on the display.
Turn the control clockwise to move the sound to the
right speakers and counterclockwise to move the sound
to the left speakers.
The middle position balances the sound between the
speakers. To set the balance to the middle position, press
the P
-TYPE LIST AUDIO control briefly, then press it
again and hold it until the radio emits one beep. The
balance will be set to the middle position and the display
will show the speaker balance.To set all tone and speaker controls to the middle
position, press and hold the P
-TYPE LIST AUDIO
control when no tone or speaker control is active. The
radio will produce one beep and display ALL with the
level display in the middle position.
To adjust the fade, press and release the P
-TYPE LIST
AUDIO control until FADE appears on the display. Turn
the control clockwise to move the sound to the front
speakers and counterclockwise to move the sound to the
rear speakers.
The middle position balances the sound between the
speakers. To set the fade to the middle position, press
the P
-TYPE LIST AUDIO control briefly, then press it
again and hold it until the radio emits one beep. The
fade will be set to the middle position and the display
will show the speaker balance.
To set all tone and speaker controls to the middle
position, press and hold the P
-TYPE LIST AUDIO
control when no tone or speaker control is active. The
radio will produce one beep and display ALL with the
level display in the middle position.

3-26
Using RDS
Your audio system is equipped with a Radio Data
System (RDS). RDS is a system that sends data along
with the audio of the FM station you are currently tuned
to. You can use RDS to display program information
and to control your radio. With RDS, the radio can do
the following:

Seek only to stations with the types of programs you
want to listen to,

seek to stations with traffic announcements,

receive announcements concerning local and
national emergencies, and

receive and display messages from radio stations.
RDS features are only available on FM stations that
broadcast RDS information. The RDS features of your
radio rely on receiving specific RDS information from
these stations. These features will only work when the
RDS information is available. In rare cases, a radio
station may broadcast incorrect information that will
cause the radio features to work improperly. If this
happens, please contact the radio station.When you are tuned to an RDS station, the station name
will appear on the display, instead of the frequency.
Most RDS stations provide their station name, the time
of day and a Program Type (PTY) for their current
programming. Some stations also provide the name of
the current program.
TUNE DISP: Press this control to change what appears
on the display while using RDS. Pressing this control
will also display an RDS station frequency or program
type when the radio is on. The display options are
station name, station frequency, PTY and the name of
the program (if available). Pressing and holding this
control will activate the RDS default display.
Accessing RDS Stations
To access RDS stations perform the following steps:
1. Push the SEEK TYPE button or turn the P
-TYPE
LIST AUDIO control to display the program
type list.
2. Turn the control either clockwise or
counterclockwise to select a program type. The list is
alphabetical. If you select ANY TYPE your radio
will seek to the first PTY available.
3. Push the SEEK TYPE button to activate search.

3-27
VOL PWR: Turn this control clockwise to increase
volume when RDS interrupts regular play. Turn it
counterclockwise to decrease volume.
P
-TYPE LIST AUDIO: Turn this control clockwise
or counterclockwise to select the Program Type (PTY)
you want to listen to. TYPE and a PTY will appear on
the display. Press the SEEK TYPE button and the radio
will seek to the first RDS broadcaster of the selected
program type. If the radio cannot find the desired
program type, NONE will appear on the display and the
radio will return to the last station you were listening to.
AM FM: The AM FM button operates the alternate
frequency feature. This feature allows the radio to
switch automatically to a stronger station with the same
programming. Alternate frequency is off by default from
the factory. Press and hold AM FM for two seconds to
turn alternate frequency on or off. AF ON or AF OFF
will appear on the display and the radio will beep once.
The radio will not switch automatically to other stations
when alternate frequency is off.SEEK TYPE: Press this button to go to a station with
the last selected PTY; TYPE and the last selected PTY
will appear on the display, if it is not already showing.
Press SEEK TYPE a second time to seek. If a station
with the selected PTY is not found, the radio will return
to the original station and display NONE.
RDS Radio Announcements
(Alert): Alert warns of national or local emergencies.
You will not be able to turn off alert announcements.
ALERT! appears on the display when an alert
announcement plays. When an alert announcement
comes on the tuned radio station, you will hear it, even
if the volume is muted or a cassette tape or compact disc
is playing. If the cassette tape or compact disc player is
playing, play will stop for the announcement and resume
when the announcement is finished.
This function will only work during actual emergency
broadcasts, and will not work during tests of the
emergency broadcast system. This feature is not
supported by all RDS stations.

3-30
5 SIDE: Press this button to play the other side of
the tape.
6
RDM: Press this button to reduce background
noise. NR ON will appear on the display. Press it again
to turn Dolby off. NR OFF will appear on the display.
Dolby Noise Reduction is manufactured under a license
from Dolby Laboratories Licensing Corporation. Dolby
and the double
-D symbol are trademarks of Dolby
Laboratories Licensing Corporation.
 SEEK PSCAN
: SEEK PSCAN (right arrow) is
the same as 2 NEXT, and SEEK PSCAN (left arrow) is
the same as 1 PREV. If the button is held or pressed
more than once, the player will continue moving
forward or backward through the tape. SEEK and a
positive or negative number will appear on the display.
AM FM: Press this button to play the radio when a
tape is in the player. The tape will stop but remain in
the player.
TAPE CD: With a tape in the player and the radio
playing, press this button to play a tape. Press AM FM
to return to the radio when a tape is playing. Press TAPE
CD to switch between the tape and compact disc if both
are loaded. The inactive tape or CD will remain safely
inside the radio for future listening.
EJT: Press this button to remove a tape. The radio
will play. Eject may be activated with the radio off.
Cassette tapes may be loaded with the radio off if this
button is pressed first.
Cassette Tape Messages
(CHK TAPE): If CHK TAPE appears on the radio
display, the tape won't play because of one of the
following errors.
The tape is tight and the player can't turn the tape
hubs. Remove the tape. Hold the tape with the open
end down and try to turn the right hub
counterclockwise with a pencil. Turn the tape over
and repeat. If the hubs do not turn easily, your tape
may be damaged and should not be used in the
player. Try a new tape to make sure your player is
working properly.
The tape is broken. Try a new tape.
The tape is wrapped around the tape head. Attempt
to get the cassette out. Try a new tape.

3-33
Compact Disc Messages
(Err): If you're driving on a very rough road or if it's
very hot, the disc may not play and Err (error) may
appear on the display. When the road becomes smooth
or the temperature returns to normal, the disc should
play. If the disc comes out, it could be one of
the following:

The disc is upside down.

It is dirty, scratched or wet.

It is very humid. (If so, wait about an hour
and try again.)
If any error occurs repeatedly or if an error can't be
corrected, please contact your dealer.
(CAL ERR): This message is displayed when the radio
has not been calibrated properly for the vehicle. You
must return to the dealership for service.
(LOCKED): This message is displayed when the
THEFTLOCK
 system has locked up. You must return
to the dealership for service.
AM-FM Stereo with 6-Disc Compact
Disc Player with Programmable
Equalization and Radio Data System (RDS)
(If Equipped)
Standard radio--Bose not shown
Playing the Radio
VOLUME PWR: Press this control to turn the system
on and off. To increase volume, turn the control
clockwise. Turn it counterclockwise to decrease volume.

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.

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.

4-22
Q:What should I do if my vehicle stalls, or is about
to stall, and I can't make it up the hill?
A:If this happens, there are some things you should
do, and there are some things you must not do.
First, here's what you should do:

Push the brake pedal to stop the vehicle and
keep it from rolling backwards. Also, apply the
parking brake.

If your engine is still running, shift the transmission
to REVERSE (R), release the parking brake, and
slowly back down the hill in REVERSE (R).

If your engine has stopped running, you'll need to
restart it. With the brake pedal pressed and the
parking brake still applied, shift the transmission to
PARK (P) and restart the engine. Then, shift to
REVERSE (R), release the parking brake, and
slowly back down the hill as straight as possible
in REVERSE (R).
As you are backing down the hill, put your left hand
on the steering wheel at the 12 o'clock position. This
way, you'll be able to tell if your wheels are straight
and maneuver as you back down. It's best that you
back down the hill with your wheels straight rather
than in the left or right direction. Turning the wheel
too far to the left or right will increase the possibility
of a rollover.
Here are some things you must not do if you stall, or are
about to stall, when going up a hill.

Never attempt to prevent a stall by shifting into
NEUTRAL (N) to ªrev
-upº the engine and regain
forward momentum. This won't work. Your vehicle
will roll backwards very quickly and you could go
out of control.
Instead, apply the regular brake to stop the
vehicle. Then apply the parking brake. Shift to
REVERSE (R), release the parking brake, and
slowly back straight down.

Never attempt to turn around if you are about to stall
when going up a hill. If the hill is steep enough to
stall your vehicle, it's steep enough to cause you to
roll over if you turn around. If you can't make it up
the hill, you must back straight down the hill.