light CHEVROLET TRAIL BLAZER 2002 1.G Workshop Manual

2-92
The DIC does not replace the need to maintain your
vehicle as recommended in the Maintenance Schedule
in this manual. Also, the oil change reminder will not
detect dusty conditions or engine malfunctions that may
affect the oil. If you drive in dusty areas, change your
oil after every 3,000 miles (5 000 km) or three months,
whichever occurs first, unless the DIC instructs you to
do so sooner. Also, the oil change reminder does not
measure how much oil you have in your engine. So, be
sure to check your oil level often. See ªEngine Oilº in
the Index.
Personalization Button
You can program certain features to a preferred setting
for up to two people. Press the personalization button to
scroll through the following personalization features. All
of the personalization options may not be available on
your vehicle. Only the options available will be
displayed on your DIC.

ALARM WARNING TYPE

AUTOMATIC LOCKING

AUTOMATIC UNLOCKING
SEAT POSITION RECALL (If Equipped)

PERIMETER LIGHTING

REMOTE LOCK FEEDBACK

REMOTE UNLOCK FEEDBACK

HEADLAMPS ON AT EXIT

TILT MIRROR IN REVERSE (If Equipped)

EASY EXIT SEAT (If Equipped)

DISPLAY UNITS (E/M)

DISPLAY LANGUAGE
The driver's preferences are recalled by pressing the
unlock button on the remote keyless entry transmitter
or by pressing the appropriate memory button 1 or 2
located on the driver's door.

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Choose one of the three options and press the
personalization button while it is displayed on the DIC
to select it and move on to the next feature. For more
information on seat position recall see ªMemory Seat
and Mirrorsº in the Index.
Perimeter Lighting
Press the personalization button until PERIMETER
LIGHTING appears in the display. To select your
personalization for perimeter lighting, press the select
button while PERIMETER LIGHTING is displayed on
the DIC. Pressing the select button will scroll through
the following choices:

PERIMETER LIGHTING ON (default)

PERIMETER LIGHTING OFF
If you choose for perimeter lighting to be on, the
headlamps and back
-up lamps will come on for
40 seconds, if it is dark enough outside, when you
unlock the vehicle with the remote keyless entry
transmitter.
Choose one of the two options and press the
personalization button while it is displayed on the
DIC to select it and move on to the next feature.Remote Lock Feedback
Press the personalization button until REMOTE LOCK
FEEDBACK appears in the display. To select your
personalization for the feedback you will receive when
locking the vehicle with the remote keyless entry
transmitter, press the select button while REMOTE
LOCK FEEDBACK is displayed on the DIC.
Pressing the select button will scroll through the
following choices:

LOCK FEEDBACK: BOTH (default)

LOCK FEEDBACK: OFF

LOCK FEEDBACK: HORN

LOCK FEEDBACK: LAMPS
If you choose both, the parking lamps will flash each
time you press the button with the lock symbol on the
remote keyless entry transmitter and the horn will chirp
the second time you press the lock button.
If you choose off, there will be no feedback when
locking the vehicle.
If you choose horn, the horn will chirp the second time
you press the button with the lock symbol on the remote
keyless entry transmitter.

3-4
Mode Buttons
(Recirculation): Press this button to limit the
amount of outside air entering your vehicle. This is
helpful when you are trying to limit odors entering your
vehicle and for maximum air conditioning performance
in hot weather. Recirculation cannot be used in floor,
blend or defrost modes. An indicator on the button will
light up, flash three times and turn off when
recirculation is selected in these modes.
While in the recirculation mode the windows may fog
when the weather is cold and damp. To clear the fog,
select either the blend or defrost mode and increase the
fan speed.
(Air Conditioning): Press this button to turn the
air conditioning compressor on and off. The system will
cool and dehumidify the air inside the vehicle when the
air conditioning compressor is engaged
Automatic Dual Zone Comfort Control
System (Option)
With this system, you can select different comfort
control settings for the driver and passengers.

3-7
Manual Operation
You may manually adjust the air delivery mode or
fan speed. Use the mode button to cycle through the
following four air delivery modes:
(Panel): This setting will deliver air to the
instrument panel outlets.
(Bi-Level): This setting will deliver warmer air to
the floor and cooler air to the instrument panel outlets.
(Floor): This setting will deliver air to the
floor outlets.
(Defog): This setting will deliver air to the floor
and windshield outlets.
OFF: Press this button to turn the system off. Some
fresh air will continue to flow through the vehicle from
the floor outlets. The system will try to maintain the
previously chosen temperature setting.
(Recirculation): Press this button to limit the
amount of outside air entering your vehicle. This is
helpful when you are trying to limit odors entering your
vehicle and for maximum air conditioning performance
in hot weather. Press this button again to allow outside
air to enter the vehicleIf you select recirculation while in defrost, defog or
floor, the light on the button will flash and go out to let
you know this is not allowed. This is to prevent fogging.
When the weather is cool or damp, operating the system
in recirculation for extended periods of time may cause
fogging of the vehicle's windows. To clear the fog,
select either defog or FRONT defrost. Be sure A/C OFF
is not selected to allow the air conditioning compressor
to run automatically and help dehumidify the air.
(Air Conditioning): Press this button to turn
the air conditioning compressor on and off. When air
conditioning is selected or in AUTO mode, the system
will run the air conditioning automatically to cool and
dehumidify the air entering the vehicle. If you select
A/C OFF while in FRONT defrost, the A/C OFF text
will flash to let you know this is not allowed. This is to
prevent fogging.
FRONT (Defrost): Press this button to defrost
the windshield. The system will automatically control
the fan speed if you select defrost from AUTO. If the
outside temperature is 40
F (4
C) or warmer, your air
conditioning compressor will automatically run to help
dehumidify the air and dry the windshield.

3-9
If your vehicle has the automatic system and you select
FRONT defrost or defog from AUTO, the system will
control the fan speed. Adjust the temperature and fan
speed to your comfort level. After the windshield is
clear, adjust the temperature to your normal setting and
select the AUTO button and return to AUTO mode and
fan control.
For maximum front defrost performance under extreme
icing or frosting conditions, increase the temperature
setting to 90
F (32
C) and increase the fan speed
to high.
Rear Window Defogger
The lines you see on the rear window warm the glass.
Press the button to start warming your window. A light
will glow in the button while the defogger is working.If your vehicle is equipped with heated mirrors, this
button will activate them.
After 10 minutes it will turn off by itself, or press the
button during the heating cycle to turn it off. If you need
additional warming time, press the button again.
Do not attach a temporary vehicle license, tape or decals
across the defogger grid on the rear window.
NOTICE:
Do not try to clear frost or other material from
the inside of the rear window with a razor blade
or anything else that is sharp. This may damage
the defogger grid. The repairs wouldn't be
covered by your warranty.

3-48
Using RDS
Your audio system is equipped with a Radio Data
System (RDS). RDS mode gives you many useful new
features. 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 for use on FM stations
which broadcast RDS information. The RDS features of
your radio rely upon 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.P-TYPE: This button is used to turn on and off
Program Type (PTY) selections. PTY and the light next
to the button will turn on. The last selected PTY will
appear on the display for five seconds.
Turn the TUNE RCL P
-TYPE control to select the PTY
you want to listen to. Press the SEEK SCAN arrows to
find radio stations for the PTY you want to listen to. The
last PTY selected will be used for seek or scan modes.
If a station with the selected PTY is not found, NONE
FOUND will appear on the display. If both P
-TYPE and
TRAF are on, the radio will search for stations with
traffic announcements and the selected PTY.
To use the P
-TYPE interrupt feature, press and hold the
P
-TYPE button until you hear a beep on the PTY you
want to interrupt on. When you are listening to a compact
disc, the last selected RDS FM station will interrupt play
if that selected program type format is broadcast.
AM FM: The AM FM button operates the alternate
frequency feature. Alternate frequency allows the radio
to switch to a stronger station with the same program
type. Press and hold AM FM for two seconds to turn
alternate frequency on. AF ON will appear on the
display. The radio may switch to stronger stations.
Press and hold AM FM again for two seconds to turn
alternate frequency off. AF OFF will appear on the
display. The radio will not switch to other stations.

3-50
Playing a Compact Disc
LOAD CD
: Press this button to load CDs into the
compact disc player. This compact disc player will
accommodate up to six discs.
To insert one disc do the following:
1. Turn the ignition on.
2. Press and release the LOAD CD button.
3. Wait for the light, located to the right of the slot, to
turn green.
4. Load a disc. Insert a disc partway into the slot, label
side up. The player will pull the disc in.
When the disc is inserted, the CD symbol will be
displayed. If you select an EQ setting for your disc,
it will be activated each time you play a disc.
If the radio is on or off, the disc will begin to
play automatically.
To insert multiple discs do the following:
1. Turn the ignition on.
2. Press and hold the LOAD CD button for two seconds.
You will then hear a beep and the light, located to the
right of the slot, will begin to flash.3. Once the light stops flashing and turns green, load a
disc. Insert a disc partway into the slot, label side up.
The player will pull the disc in.
Once the disc is loaded, the light will begin flashing
again. Once the light stops flashing and turns green
you can then load another disc. The disc player takes
up to six discs. Do not try to load more than six.
When a disc is inserted, the CD symbol will be
displayed. If more than one disc has been loaded, a
number for each disc will be displayed. If you select
an EQ setting for your disc, it will be activated each
time you play a disc.
If the radio is on or off, the last disc loaded will
begin to play automatically.
4. To load more than one disc but less than six,
complete Steps 1, 2 and 3. When you have finished
loading discs, with the radio on or off, press the
LOAD CD button to cancel the loading function.
The radio will begin to play the last CD loaded.
As each new track starts to play, the track number will
appear on the display.

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Playing a Specific Loaded Compact Disc
For every CD loaded, a number will appear on the radio
display. To play a specific CD, first press the CD AUX
button to start playing a CD. Then press the numbered
pushbutton that corresponds to the CD you want to play.
A small bar will appear under the CD number that is
playing, and the track number will appear.
If an error appears on the radio display, see ªCompact
Disc Messagesº later in this section.
LOAD CD
: This button will eject a disc or discs, if
you have multiple discs loaded. To eject a disc or discs
from the disc player perform one of the following steps:

Press and release the LOAD CD eject button to eject
the disc that is currently playing, or

to eject all of the discs, press the LOAD CD eject
button for two seconds, you will hear a beep, and
the light will flash to let you know when a disc is
being ejected.
When the LOAD CD eject button is pressed, the
receiver will eject the disc and REMOVE CD will be
displayed. You can now remove the disc. If the disc
is not removed, after 25 seconds, the disc will be
automatically pulled back into the receiver.If you try to push the disc back into the receiver, before
the 25 second time period is complete, the receiver will
sense an error and will try to eject the disc several times
before stopping. Do not repeatedly press the LOAD CD
eject button to eject a disc after you have tried to push
it in manually. The receivers 25
-second eject timer will
reset at each press of eject, which will cause the receiver
to not eject the disc until the 25
-second time period
has elapsed.
Once the player stops and the disc is ejected, remove the
disc. After removing the disc, press the VOLUME PWR
control off and then on again. This will clear the
disc
-sensing feature and enable discs to be loaded into
the player again.
REV: Press and hold this button to reverse quickly
within a track. Release it to play the passage. You will
hear sound at a reduced volume. The display will show
elapsed time.
FWD : Press and hold this button to advance quickly
within a track. Release it to play the passage. You will
hear sound at a reduced volume. The display will show
elapsed time.

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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.
Audio Steering Wheel Controls (If Equipped)
If your vehicle has this
feature, certain radio
functions can be
operated by using the
controls on your
steering wheel.
AM/FM: Press this control to tune to the next radio
station. When playing a cassette tape or compact disc,
press AM/FM to switch to the radio.
(Program): Press this control to tune to the next
preset radio station. When playing a cassette tape, press
program to hear the other side of a tape that is playing.
When using the CD changer, this control will seek to the
next selection.
(Volume): Press the up or down arrow to increase
or decrease volume.

3-58 Care of Your Cassette Tape Player
A tape player that is not cleaned regularly can cause
reduced sound quality, ruined cassettes or a damaged
mechanism. Cassette tapes should be stored in their
cases away from contaminants, direct sunlight and
extreme heat. If they aren't, they may not operate
properly or may cause failure of the tape player.
Your tape player should be cleaned regularly after
every 50 hours of use. Your radio may display CLEAN
to indicate that you have used your tape player for
50 hours without resetting the tape clean timer. If this
message appears on the display, your cassette tape
player needs to be cleaned. It will still play tapes, but
you should clean it as soon as possible to prevent
damage to your tapes and player. If you notice a
reduction in sound quality, try a known good cassette
to see if it is the tape or the tape player at fault. If this
other cassette has no improvement in sound quality,
clean the tape player.
The recommended cleaning method for your cassette
tape player is the use of a scrubbing action,
non
-abrasive cleaning cassette with pads which scrub
the tape head as the hubs of the cleaner cassette turn.The recommended cleaning cassette is available through
your dealer (GM Part No. 12344789).
When using a scrubbing action, non
-abrasive cleaning
cassette, it is normal for the cassette to eject because
your unit is equipped with a broken tape detection
feature and a cleaning cassette may appear as a broken
tape. To prevent the cleaning cassette from being
ejected, use the following steps.
If your vehicle is equipped with the AM
-FM Stereo with
Cassette Tape Player with Radio Data System (RDS)
and Automatic Tone Control:
1. Turn the ignition to RUN or ACCESSORY.
2. Turn the radio off.
3. Press and hold the TAPE AUX button for five
seconds. READY will appear on the display and a
cassette icon will flash for five seconds.
4. Insert the scrubbing action cleaning cassette.
5. Eject the cleaning cassette after the manufacturer's
recommended cleaning time.