2002 CHEVROLET TRAIL BLAZER Owners Manual

2-100
DIC Warnings and Messages
Warning messages are displayed on the DIC to notify
the driver that the status of the vehicle has changed and
that some action may be needed by the driver to correct
the condition. More than one message may appear at
one time, they will appear one behind the other. Some
messages may not require immediate action but you
should press the select button to acknowledge that you
received the message and clear it from the display. Some
messages cannot be cleared from the display because
they are more urgent. These message required action
before they can be removed from the DIC display. The
following are the possible messages that can be
displayed and some information about them.
ENGINE COOLANT HOT/IDLE ENGINE
If the cooling system temperature gets hot this message
will appear in the DIC and you will hear a chime. Stop
the vehicle and let the engine idle in PARK (P) to allow
the coolant to reach a safe temperature. This message
will clear when the coolant temperature drops to a safe
operating temperature.ENGINE OVERHEATED/STOP ENGINE
(If Equipped)
If the engine cooling system reaches unsafe
temperatures for operation, this message will appear in
the DIC and you will hear a chime. Stop and turn off the
vehicle as soon as it is safe to do so to avoid severe
damage. This message will clear when the engine has
cooled to a safe operating temperature.
OIL PRESSURE LOW/STOP ENGINE
If low oil pressure levels occur this message will be
displayed on the DIC. Stop the vehicle as soon as safely
possible and do not operate it until the cause of the low
oil pressure has been corrected. Check your oil as soon
as possible and have your vehicle serviced.
BATTERY NOT CHARGING
If the battery is not charging during operation this
message will appear on the DIC. Driving with this
problem could drain your battery. Have the electrical
system checked as soon as possible. Pressing the select
button will acknowledge this message and clear it from
the DIC display.

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SERVICE AIR BAG
If there is a problem with the air bag system this
message will be displayed on the DIC. Have a qualified
technician inspect the system for problems. Pressing the
select button will acknowledge this message and clear it
from the DIC display.
SERVICE BRAKE SYSTEM
If a problem occurs with the brake system this message
will appear on the DIC. If this message appears, stop as
soon as possible and turn off the vehicle. Restart the
vehicle and check for the message on the DIC display.
If the message is still displayed, or appears again when
you begin driving, the brake system needs service.
TURN SIGNAL ON
If a turn signal is left on for 3/4 of a mile (1.2 km) this
message will appear on the display and you will hear a
chime. Move the turn signal/multifunction lever to the
off position. Pressing the select button will acknowledge
this message and clear it from the DIC display.REAR ACCESS OPEN
If the liftgate or liftglass is open while the ignition is in
RUN, this message will appear on the DIC and you
will hear a chime. Turn off the vehicle and check the
liftgate and liftglass. Restart the vehicle and check for
the message on the DIC display. Pressing the select
button will acknowledge this message and clear it from
the DIC display.
FUEL LEVEL LOW
If the fuel level is low in the vehicle's gas tank this
message will appear on the DIC and you will hear a
chime. Refuel as soon as possible. Pressing the select
button will acknowledge this message and clear it from
the DIC display.
CHANGE TRANS FLUID
If this message appears on the DIC it is time to change
the transmission fluid. Take you vehicle in for service
as soon as possible. Pressing the select button will
acknowledge this message and clear it from the
DIC display.

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CHECK OIL LEVEL
If the oil level in the vehicle is low this message will
appear on the DIC. Check the oil level and correct it as
necessary. You may need to need to let the vehicle cool
or warm up and cycle the ignition to be sure this
message will clear. Once the problem is corrected,
pressing the select button will clear this message from
the DIC display.
CHECK WASHER FLUID
If the washer fluid level is low this message will appear
on the DIC. Adding washer fluid will clear the message.
Pressing the select button will acknowledge this
message and clear it from the DIC display.
TRANS HOT IDLE ENGINE
If the transmission fluid in the vehicle gets hot this
message will appear on the DIC. Driving with the
transmission fluid temperature high can cause damage to
the vehicle. Stop the vehicle and let it idle to allow the
transmission to cool. This message will clear when the
fluid temperature reaches a safe level.ICE POSSIBLE
If the outside temperature reaches a level where ice
could form on the roadway, this message may appear
on the DIC. If the temperature rises to a safe level the
message will clear. Pressing the select button will
acknowledge this message and clear it from the
DIC display.
DRIVER DOOR AJAR
If the driver's door is not fully closed this message will
appear on the display and you will hear a chime. Stop
and turn off the vehicle, check the door for obstacles,
and close the door again. Check to see if the message
still appears on the DIC. Pressing the select button
will acknowledge this message and clear it from the
DIC display.
PASSENGER DOOR AJAR
If the passenger's door is not fully closed this message
will appear on the display and you will hear a chime.
Stop and turn off the vehicle, check the door for
obstacles, and close the door again. Check to see if the
message still appears on the DIC. Pressing the select
button will acknowledge this message and clear it from
the DIC display.

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LEFT REAR DOOR AJAR
If the driver's side rear door is not fully closed this
message will appear on the display and you will hear a
chime. Stop and turn off the vehicle, check the door for
obstacles, and close the door again. Check to see if the
message still appears on the DIC. Pressing the select
button will acknowledge this message and clear it from
the DIC display.
RIGHT REAR DOOR AJAR
If the passenger's side rear door is not fully closed this
message will appear on the display and you will hear a
chime. Stop and turn off the vehicle, check the door for
obstacles, and close the door again. Check to see if the
message still appears on the DIC. Pressing the select
button will acknowledge this message and clear it from
the DIC display.RFA # BATTERY LOW
If a remote keyless entry transmitter battery is low this
message will appear on the DIC. The battery needs to
be replaced in the transmitter. Pressing the select button
will acknowledge this message and clear it from the
DIC display.

3-
3-1
Section 3 Comfort Controls and Audio Systems
In this section, you'll find out how to operate the comfort control and audio systems offered with your vehicle.
Be sure to read about the particular systems supplied with your vehicle.
3
-2 Comfort Controls
3
-8 Air Conditioning
3
-8 Heating
3
-8 Defogging and Defrosting
3
-9 Rear Window Defogger
3
-11 Ventilation System
3
-13 Audio Systems
3
-13 Setting the Clock
3
-13 AM-FM Stereo with Cassette Tape Player
with Radio Data System (RDS) and Automatic
Tone Control
3
-24 AM-FM Stereo with Compact Disc Player
with Radio Data System (RDS) and Automatic
Tone Control (If Equipped)
3
-32 AM-FM Stereo with Cassette Tape and
Compact Disc Player with Radio Data
System (RDS) and Automatic Tone Control
(If Equipped)3
-44 AM-FM Stereo with 6-Disc Compact Disc
Player with Programmable Equalization and
Radio Data System (RDS) (If Equipped)
3
-55 Rear Seat Audio (If Equipped)
3
-56 Theft-Deterrent Feature RDS Radios
3
-56 Audio Steering Wheel Controls (If Equipped)
3
-57 Understanding Radio Reception
3
-57 Tips About Your Audio System
3
-58 Care of Your Cassette Tape Player
3
-60 Care of Your Compact Discs
3
-60 Care of Your Compact Disc Player
3
-60 Fixed Mast Antenna
3
-60 Chime Level Adjustment

3-2
Comfort Controls
This section tells you how to use the comfort controls.
With these systems, you can control the heating, cooling
and ventilation in your vehicle.
Comfort Controls Personalization
(If Equipped)
If your vehicle is equipped with the automatic comfort
control system and memory seats and mirrors, you
can store and recall the climate control settings for
temperature, air delivery mode and fan speed for
two different drivers. The personal choice settings
recalled are determined by the transmitter used to enter
the vehicle. After the button with the unlock symbol on
a remote keyless entry transmitter is pressed, the climate
control will adjust to the last settings of the identified
driver. The settings can also be changed by pressing one
of the memory buttons (1 or 2) located on the driver's
door. When adjustments are made, the new settings are
automatically saved for that driver.
Manual Dual Zone Comfort Controls
With this system, you can select different comfort
control settings for the driver and passengers.
Fan Knob
The knob on the left side of the climate control panel
regulates the fan speed. You can choose from five
different fan speeds or turn the fan off.

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Driver's Side Temperature Lever
The lever on the left side of the climate control panel is
used to adjust the air temperature on the driver's side,
independent of the temperature set by the passenger.
Slide the lever upward to raise the temperature. Slide the
lever downward to lower the temperature.
Passenger's Side Temperature Lever
The lever on the right side of the climate control panel
is used to adjust the air temperature on the passenger's
side, independent of the temperature set by the driver.
Slide the lever upward to raise the temperature. Slide the
lever downward to lower the temperature.
This lever also adjusts the temperature to the rear
seat outlets.Mode Knob
The knob on the right side of the control panel has
several settings to control the direction of airflow:
(Panel): Selecting panel mode will deliver air to
the instrument panel outlets.
(Bi-Level): Selecting bi-level mode will deliver
warmer air to the floor and cooler air to the instrument
panel outlets.
(Floor): Selecting floor mode will deliver air to
the floor outlets and some air to the defroster and side
window vents.
(Defog): Selecting defog will deliver air to the
floor, windshield outlets and side window vents.
(Defrost): Selecting this setting directs most of
the air through the defroster and side window vents.
Some of the air also goes to the floor ducts.

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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.