ECU CHEVROLET TRAIL BLAZER 2002 1.G Owner's Manual

2-17
Testing the Alarm
The alarm can be tested by following these steps:
1. From inside the vehicle, lower the driver's window
and open the driver's door.
2. Activate the system by locking the doors with the
power door lock switch while the door is open, or
with the remote keyless entry transmitter.
3. Get out of the vehicle, close the door and wait for the
SECURITY light to go out.
4. Then reach in through the window, unlock the door
with the manual door lock and open the door. This
should set off the alarm.
When the alarm is set the power door unlock switch is
not operational.
If the alarm does not sound when it should but the
headlamps flash, check to see if the horn works. The
horn fuse may be blown. To replace the fuse, see ªFuses
and Circuit Breakersº in the Index.
If the alarm does not sound or the headlamps do not
flash, the vehicle should be serviced by your dealer.
Passlock

Your vehicle is equipped with the Passlock
theft
-deterrent system.
Passlock is a passive theft
-deterrent system. Passlock
enables fuel if the ignition lock cylinder is turned with a
valid key. If a correct key is not used or the ignition lock
cylinder is tampered with, the fuel system is disabled
and the vehicle will not start.
During normal operation, the SECURITY light will
turn off approximately five seconds after the key is
turned to RUN.
If the engine stalls and the SECURITY light flashes,
wait about 10 minutes until the light stops flashing
before trying to restart the engine. Remember to release
the key from START as soon as the engine starts.

2-18
If the engine does not start after three tries, the vehicle
needs service.
If the engine is running and the SECURITY light comes
on, you will be able to restart the engine if you turn the
engine off. However, your Passlock system is not
working properly and must be serviced by your dealer.
Your vehicle is not protected by Passlock at this time.
You may also want to check the fuse (see ªFuses and
Circuit Breakersº in the Index). See your dealer
for service.
In an emergency, call the GM Roadside Assistance
Center. See ªRoadside Assistanceº in the Index.New Vehicle ªBreak-Inº
NOTICE:
Your vehicle doesn't need an elaborate
ªbreak
-in.º But it will perform better in the long
run if you follow these guidelines:

Keep your speed at 55 mph (88 km/h) or
less for the first 500 miles (805 km).

Don't drive at any one speed
-- fast or
slow
-- for the first 500 miles (805 km).
Don't make full
-throttle starts.

Avoid making hard stops for the first
200 miles (322 km) or so. During this time
your new brake linings aren't yet broken
in. Hard stops with new linings can mean
premature wear and earlier replacement.
Follow this breaking
-in guideline every
time you get new brake linings.

Don't tow a trailer during break
-in.
See ªTowing a Trailerº in the Index for
more information.

2-54
Power Remote Control Mirrors
(If Equipped)
The control is located on the driver's door.
Turn the control to the left or right to choose the mirror;
then press the control to move the mirror in the direction
that you want the mirror to go. To secure the mirror
settings turn the knob back to the center position.
Convex Outside Mirror
A convex mirror's surface is curved so you can see more
from the driver's seat.
CAUTION:
A convex mirror can make things (like other
vehicles) look farther away than they really are.
If you cut too sharply into the right or left lane,
you could hit a vehicle. Check your inside
mirror or glance over your shoulder before
changing lanes.
Heated Outside Rearview Mirrors
When you operate the rear window defogger, a defogger
also warms the heated driver's and passenger's outside
rearview mirrors to help clear them of ice, snow and
condensation. See ªRear Window Defoggerº in the
Index for more information.

2-58
Cargo Security Shade (If Equipped)
If your vehicle has a cargo cover, you can use it to cover
items in the cargo area of your vehicle.
To install the cargo cover, do the following:
1. Align the endcap with the pocket in the trim panel
located behind the rear seat.
2. Compress the opposite endcap, align it with the
pocket located on the opposite side of the trim panel
and release.
3. Grasp the handle and unroll the cover. Latch the
posts into the sockets on the inside of the vehicle to
secure it.To remove the cargo cover, do the following:
1. Release the cover from the latch posts and carefully
roll it back up.
2. Compress one endcap and remove it from the pocket
in the trim panel.
3. Remove the cargo cover from the other endcap so
that you can remove the shade from the vehicle.
CAUTION:
An improperly stored cargo cover could be
thrown about the vehicle during a collision or
sudden maneuver. You or others could be
injured. If you remove the cover, always store it
outside of the vehicle. When you put it back,
always be sure that it is securely reattached.

2-59
Cargo Tie Downs
There are five cargo tie
downs in the rear of your
vehicle that allow you to
strap cargo in and keep it
from moving.
Rear Floor Stowage Lid
CAUTION:
If the rear floor stowage lid isn't secured
properly, it can move around in a collision or
sudden stop. People in the vehicle could be
injured. Be sure to secure the rear floor stowage
lid properly.
Your vehicle has a rear floor stowage lid located in
the rear cargo area that allows you to put items
underneath it.
To remove the rear floor stowage lid, do the following:
1. Press the latch release and lift up the latch handle.
2. Raise the lid slightly to unhook it.
3. Pull the lid rearward to release it from the forward
mounting tabs.
To reinstall the rear floor stowage lid, reverse the
previous steps. Make sure the lid is secure by applying
slight pressure to the latch until you hear it click.

2-61
To prevent damage or loss of cargo as you're driving,
check now and then to make sure the luggage carrier is
locked and cargo is still securely fastened.
Ashtrays and Cigarette Lighter
The front ashtray is removable and fits into the
front cupholder.
NOTICE:
Don't put papers and other things that burn into
your ashtray. If you do, cigarettes or other
smoking materials could set them on fire,
causing damage.
To remove the front ashtray, pull the covered bin out of
the cupholder.
To use the lighter, press it in all the way, and let go.
When it's ready, it will pop back out by itself.
NOTICE:
Don't hold a cigarette lighter in with your hand
while it is heating. If you do, it won't be able to
back away from the heating element when it's
ready. That can make it overload, damaging the
lighter and the heating element.
Sun Visors
To block out glare, you can pull the visor down. You can
also swing the visor from side
-to-side.
Visor Vanity Mirror
Pull the sun visor down to expose the vanity mirror.
Illuminated Visor Vanity Mirror
(If Equipped)
Pull the sun visor down and lift the mirror cover to turn
on the lamps.

2-64
Volume Control: You can control the volume of the
OnStar System using either the volume control knob
on the radio or using the steering wheel volume control
(if equipped).
Telltale Light: This light will indicate the status of
the system. A solid green light will come on when you
start the vehicle to let you know that the system is on
and is ready to make or receive calls.
If the light blinks green it means that an incoming or
outgoing call is in progress. Press the Call
ANSWER/END button if you notice the light blinking
and you are not on a call.
The light will be red in the event of an OnStar system
malfunction. If this occurs press the OnStar button to
attempt to contact an advisor. If the connection is made,
the advisor will assist you with steps to take to make
sure that the system is functioning properly. If you
cannot contact the advisor, take your vehicle to your
dealership as soon as possible for assistance.
Safety and Security Services
Automatic Notification of Air Bag Deployment: If an
air bag deploys, a priority emergency signal is
automatically sent to the center. An advisor will locate
your vehicle's position, try to contact you and assist you
in the situation. If the center is unable to contact you, an
emergency service provider will be contacted.
Stolen Vehicle Tracking: Call the center at
1
-888-4-ONSTAR (1-888-466-7827) to report your
vehicle stolen. The system can then locate and track
your vehicle and the advisor will be able to notify the
proper authorities.
Roadside Assistance with Location: For vehicle
breakdowns, press the OnStar button. An advisor will
contact the appropriate help.
Remote Diagnostics: If an instrument panel light comes
on, the center can perform a check of the engine
on
-board computer. An advisor can then recommend
what action needs to be taken.

2-65
OnStar MED-NET: Med-Net can store your personal
medical history and provide it to emergency personnel if
necessary. (Requires activation and additional fee.)
Remote Door Unlock: To contact the center, call
1
-888-4-ONSTAR. You will be required to provide
your security information. An advisor will send a
command to your vehicle to unlock itself. The advisor
can delay unlocking your vehicle. Remote Door Unlock
is disabled 48 hours after the vehicle is parked to
maintain the battery charge.
Vehicle Locator Service: To contact the center, call
1
-888-4-ONSTAR. You will be required to provide your
security information. An advisor will send a command
to your vehicle to sound the horn and/or flash the lamps.
In order to provide you with excellent service, calls with
the OnStar Center may be monitored or recorded.
Premium Services (Includes Safety and
Security Services)
Route Support: An advisor can provide directions or
guidance to anywhere you want to go. In addition, they
can help you locate gas stations, rest areas, ATMs,
hospitals, hotels, stores, eateries and more.
Concierge Services: The concierge advisor can obtain
tickets, reservations, or help with vacation/trip planning
and other unique items and services.
Ride Assist: An advisor can locate transportation in the
event that you are unable to drive.

2-66
OnStar System Limitations
Complete limitations can be found on the Subscriber
Services Agreement.
OnStar Service is:

available in the 48 contiguous United States, Alaska,
Hawaii and Canada;

available when the vehicle is within the operating
range of a cellular provider;

subject to limitations caused by atmospheric
conditions, such as severe weather or topographical
conditions, such as mountainous terrain;

subject to cellular carrier equipment limitations.
Global positioning capabilities used to deliver
OnStar service will not be available if satellite signals
are obstructed.
OnStar will not function if the vehicle's battery is
discharged or disconnected. It may also be inoperative
if the vehicle is in an accident and the OnStar or vehicle
electrical system components are damaged.Safety and security services are provided by existing
governmental emergency service providers. OnStar will
use reasonable efforts to contact the appropriate
emergency service provider and request assistance but
cannot promise that they will respond to the call in a
timely manner or at all.
Sunroof (Option)
Your vehicle may be equipped with a power sliding
sunroof. To open or close your sunroof, the ignition or
Retained Accessory Power (RAP) must be active. See
ªRetained Accessory Powerº in the Index.
Press and release the back of the button in the overhead
console to open the sunroof. You can press the front of
the button to close the sunroof. Once the sunroof is
closed, press the forward side of the button to open the
sunroof to the vent position.
The sunroof is also equipped with a sunshade which you
can pull forward to block sun rays.

2-84
Change Engine Oil Light
United States Canada
This light is displayed when the engine oil needs to
be changed.
Once the engine oil has been changed, the CHANGE
ENG OIL light must be reset. Until it is reset, the light
will be displayed when the engine is on. For more
information on resetting the system, see ªOil Life
Systemº in the Index.
Security Light
United States Canada
This light will come on briefly when you turn the
key toward START. The light will stay on until the
engine starts.
If the light flashes, the Passlock

system has entered a
tamper mode. If the vehicle fails to start, see ªPasslockº
in the Index.
If the light comes on continuously while driving and
stays on, there may be a problem with the Passlock
system. Your vehicle will not be protected by Passlock,
and you should see your dealer.
Also, see ªContent Theft
-Deterrentº in the Index for
additional information regarding the SECURITY light.