2002 CHEVROLET TRAIL BLAZER Owners Manual

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Exterior Lamps
Your exterior lamps knob is
on the driver's side of your
instrument panel.
Turn the knob clockwise to the parking lamps
symbol to manually turn on the following:

Parking Lamps

Sidemarker Lamps

Taillamps

License Plate Lamps

Instrument Panel Lights
Turn the knob clockwise to the master lamps
symbol to turn on all the lamps listed as well as
the headlamps.
Turn the knob all the way counterclockwise to this
symbol to turn off the lamps and put the system in
automatic headlamp mode.
Automatic Headlamp System
When it is dark enough outside, your automatic
headlamp system will turn on your headlamps at the
normal brightness along with other lamps such as the
taillamps, sidemarker, parking lamps and the instrument
panel lights. The radio lights will also be on.
Your vehicle is equipped with a light sensor on the top
of the instrument panel. Be sure it is not covered or the
system will be on whenever the ignition is on.
The system may also turn on your lights when driving
through a parking garage, heavy overcast weather or a
tunnel. This is normal.

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There is a delay in the transition between the daytime
and nighttime operation of the Daytime Running Lamps
(DRL) and the automatic headlamp systems so that
driving under bridges or bright overhead street lights
does not affect the system. The DRL and automatic
headlamp system will only be affected when the light
sensor sees a change in lighting lasting longer than
the delay.
To idle your vehicle with the automatic headlamp
system off, set the parking brake while the ignition is
off. Then start your vehicle. The automatic headlamp
system will stay off until you release the parking brake,
or until you shift out of park.
You may be able to turn off your automatic headlamp
system. See ªDaytime Running Lamps (DRL)º later
in this section for more information.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
Lamps On Reminder
A reminder tone will sound when your headlamps or
parking lamps are manually turned on, the driver's door
is open and your ignition is in LOCK or ACCESSORY.
To turn the tone off, turn the knob all the way
counterclockwise. In the automatic mode, the headlamps
turn off once the ignition key is in LOCK.
Daytime Running Lamps
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day.
DRL can be helpful in many different driving
conditions, but they can be especially helpful in the
short periods after dawn and before sunset. Fully
functional daytime running lamps are required on all
vehicles first sold in Canada.
The DRL system will make your headlamps come
on at reduced brightness when the following conditions
are met:

The ignition is on,

the exterior lamps knob is in automatic
headlamp mode,

the light sensor detects daytime light, and

the transmission is not in PARK (P).
When the DRL are on, only your headlamps will be on.
The taillamps, sidemarker and other lamps won't be on.
The instrument panel won't be lit up either.
When it begins to get dark, the headlamps
will automatically switch from DRL to the
regular headlamps.

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To idle your vehicle with the DRL off, put your
vehicle's transmission in PARK (P). The DRL will stay
off until you shift out of PARK (P).
The following does not apply to vehicles sold in Canada.
When necessary, you may turn off the automatic
headlamp system and the Daytime Running Lamps
(DRL) feature by following the steps below:
1. Turn the ignition to RUN.
2. Press the dome override button four times within six
seconds. After the fourth press of the button, a chime
will sound informing you that the system is off.
3. To return to the automatic mode, press the dome
override button four times within six seconds (the
chime will sound), or turn the ignition to LOCK and
then to RUN again.
As with any vehicle, you should turn on the regular
headlamp system when you need it.Fog Lamps
Use your fog lamps for better vision in foggy or misty
conditions. Your ignition must be in RUN for your fog
lamps to work.
The fog lamp button is
located on the instrument
panel to the right of the
exterior lamps knob. Press
the button to turn the fog
lamps on. Press the button
again to turn them off. A
light will glow near the
button when the fog lamps
are on.
Fog lamps will go off whenever your high
-beam
headlamps come on. When the high beams go off, the
fog lamps will come on again.

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Interior Lamps
Brightness Control
Press the knob located next
to the exterior lamps knob
to extend and turn it to
make your instrument panel
lights brighter. Turn the
knob all the way up to turn
on the interior lamps. Press
the knob back into its
stored position.
Dome Lamp Override
You can use the dome
override button, located
below the exterior lamps
knob, to set the dome lamps
to come on automatically
when a door is opened, or to
remain off.To turn the lamps off press the button. The dome lamps
will remain off when a door is open. To return the lamps
to automatic operation, press the button again. The
dome lamps will come on when you open a door. This
will override the illuminated entry feature unless you
use your keyless entry transmitter to unlock the vehicle.
Press the dome lamp override button four times to
override the automatic headlamps and Daytime Running
Lamps (DRL).
Illuminated Entry
Your vehicle is equipped with an illuminated
entry feature.
When a door is opened, the dome lamps will come on if
the dome override button is in the ªoutº position. When
all the doors are closed, the lamps will stay on for a
short period of time and will then turn off automatically.
If you use your keyless entry transmitter to unlock the
vehicle, the interior lights will come on for a short time
whether or not the dome override is on.

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Exit Lighting
With exit lighting, the interior lamps will come on when
you remove the key from the ignition to help you see
while exiting the vehicle. With the dome override button
in the ªoutº position, these lights will stay on for a short
period of time and then will go out.
Reading Lamps
Press the lens on the lamp located above the doors to
turn the reading lamps on and off.
Dome Lamps
The dome lamps will come on when you open a door.
You can also turn the dome lamps on by turning the
thumbwheel, located next to the exterior lamps knob, all
the way up to the top detent position. In this position,
the dome lamps will remain on until they are turned off.
Battery Run-Down Protection
This feature shuts off the dome, courtesy, vanity,
reading, glove box and underhood lamps if they are left
on for more than 20 minutes when the ignition is off.
This will keep your battery from running down.
If the battery run
-down protection shuts off the interior
lamps, it may be necessary to do one of the following to
return to normal operation:

Shut off all lamps and close all doors, or

turn the ignition key to RUN.
This feature will also turn off the parking lamps and
headlamps under most circumstances, if they are left on.
If you would like to turn them back on, turn the exterior
lamps knob on.

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Mirrors
Electrochromic Day/Night Rearview Mirror
with Compass and OnStar
(If Equipped)
Your vehicle has an automatic-dimming rearview mirror
with a compass and the OnStar system.
This is the on/off button.There are three buttons for the OnStar system. See your
dealer for more information on the system and how to
subscribe to OnStar. See ªOnStar

Systemº in the Index
for more information about the services OnStar provides.
Automatic Dimming Feature
When turned on, an electrochromic mirror automatically
dims to the proper level to minimize glare from any
headlamps behind you after dark.
The automatic dimming feature is turned on and off by
pressing the far left button, located on the lower part of
the mirror face, for up to three seconds. A light on the
mirror will be lit when the feature is turned on. It will go
out when the feature is turned off.
Compass Operation
Press the on/off button once to turn the compass
on or off.
There is a compass display in the window in the upper
right corner of the mirror face. The compass displays a
maximum of two characters. For example, ªNEº is
displayed for north
-east.

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Compass Calibration
Press and hold the on/off button down for nine seconds
to activate the compass calibration mode. ªCALº will be
displayed in the compass window on the mirror.
The mirror can be calibrated in one of two ways:

Drive the vehicle in circles at 5 mph (8 km/h) or less
until the display shows ªCAL,º or

drive the vehicle on your everyday routine.
(This method may take longer to calibrate).
Compass Variance
The mirror is set to zone eight upon leaving the factory.
It will be necessary to adjust the compass to compensate
for compass variance if you live outside zone eight.
Under certain circumstances, such as during a long
distance cross
-country trip, it will be necessary to adjust
for compass variance. Compass variance is the
difference between earth's magnetic north and true
geographic north. If not adjusted to account for compass
variance, your compass could give false readings.
To adjust for compass variance, do the following:
1. Find your current location and variance zone number
on the map.2. Press and hold the on/off button for six seconds.
Release the button when ªZONEº is displayed.
The number shown is the current zone number.
3. Scroll through the zone numbers that appear in the
compass/temperature window on the mirror by
pressing the on/off button. Once you find your zone
number, release the button. After about four seconds,
the mirror will return to the compass and
temperature display, and the new zone number will
be set.

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Electrochromic Day/Night Rearview Mirror
with Compass, Temperature and OnStar

Your vehicle may have an automatic-dimming rearview
mirror with a compass, temperature display and the
OnStar system.
This is the on/off button.There are three buttons for the OnStar system. See your
dealer for more information on the system and how to
subscribe to OnStar. See ªOnStar

Systemº in the
Index for more information about the services
OnStar provides.
Automatic Dimming Feature
When turned on, an electrochromic mirror automatically
dims to the proper level to minimize glare from any
headlamps behind you after dark.
The automatic dimming feature is turned on and off by
pressing the far left button, located on the lower part of
the mirror face, for up to three seconds. A light on the
mirror will be lit when the feature is turned on. It will go
out when the feature is turned off.
Temperature Display
The temperature display is in the window in the upper
right corner of the mirror face. The display will show
the temperature in F orC when the compass is on.
Press the on/off button to cycle throughF, C, or OFF.