2002 CHEVROLET BLAZER Owners Manual

2-7
There are several ways to lock and unlock your vehicle:

You can use the keyless entry system, if your vehicle
has this feature.

You can use your key to unlock your door from
the outside.

You can use the power lock switch (if equipped) to
lock or unlock the doors.
To manually lock a
door from the inside,
slide the manual lever
on your door down. To
manually unlock a
door from the inside,
slide the lever on the
door up.

You will see a colored area on the lever when the
door is unlocked.
Power Door Locks (If Equipped)
If your vehicle has power door locks, the switches are
located on the driver's and the passenger's front
armrests. Remove the ignition key and press LOCK to
lock all the doors at once. To unlock the doors, press the
raised area to the right of the key symbol.
On four
-door models use the manual door lock/unlock
lever on each rear door to lock or unlock those doors
from the rear seating area.

2-8
Programmable Automatic Door Locks
(If Equipped)
If your vehicle has power door locks, it will be equipped
with an auto lock/unlock feature which enables you to
program your vehicle's power door locks.
The following is a list of the available
programming options:

All doors lock/Only the driver's door unlocks:
Press the lock side of the power lock switch on the
door panel once and then the unlock side once. If
your vehicle is not equipped with remote keyless
entry, you may not be able to utilize this option.

All doors lock/All doors unlock: Press the lock
side of the power lock switch on the door panel
once, and then the unlock side twice (this is the
factory setting).

All doors lock/None of the doors unlock: Press the
lock side of the power lock switch on the door panel
once, and then the unlock side three times.
No doors lock/None of the doors unlock: Press the
lock side of the power lock switch on the door panel
twice. This turns off the automatic lock feature.
For more information, see your dealer.
If your vehicle has an automatic transmission it will be
programmed to have all the doors lock automatically
when the shift lever is moved out of PARK (P). All the
doors will unlock when the shift lever is moved back
into PARK (P).
On a manual transmission, all doors will lock when
the vehicle speed is greater than 15 mph (24 km/h).
The doors will unlock when the key is removed from
the ignition.
The following instructions detail how to program your
door locks. Choose one of the previous programming
options before entering the programming mode.

2-9
To enter the program mode you need to do the
following:
1. Begin with the ignition in OFF. Then pull the turn
signal/multifunction lever all the way toward you
and hold it while you perform the next step.
2. Turn your key to RUN and OFF twice. Then, with
the key in OFF, release the turn signal/multifunction
lever. Once you do this, you will hear the lock switch
lock and unlock.
3. You are now ready to program the automatic door
locks. Select one of the previous four programming
options and follow the instructions. You will have
30 seconds to begin programming. If you exceed
the 30 second limit, the locks will automatically lock
and unlock to indicate you have left the program
mode. If this occurs, repeat the procedure beginning
with Step 1. You can exit the program mode any
time by turning the ignition to RUN (the locks will
automatically lock and unlock to indicate you are
leaving the program mode). If the lock/unlock
switches are not pressed while in the programming
mode, the auto lock/unlock setting will not
be modified.Rear Door Security Lock (If Equipped)
With this feature, you can lock the rear doors so they
may not be opened from the inside by passengers.
The security lock lever is
located on the inside edge
of each rear door.
To use the security locks, do
the following:
1. Open one of the rear doors.
2. Slide the lever up to the lock symbol to engage the
lock or, slide the lever down to the unlock symbol to
disengage the lock.
3. Close the door.
4. Repeat these steps on the opposite rear door..
If the security locks are engaged, the rear doors of your
vehicle cannot be opened form the inside. If you want to
open a rear door when a security lock is on, unlock the
door and open the door from the outside.

2-10
Lockout Prevention
This feature stops the power door locks from locking
when the keys are in the ignition and a door is open, to
protect you from locking your key in the vehicle.
If the power lock switch is pressed when a door is open
and the key is in the ignition, all the doors will lock and
the driver's door will unlock.
Leaving Your Vehicle
If you are leaving the vehicle, take your key, open your
door and set the locks from inside. Then get out and
close the door.
Keyless Entry System (If Equipped)
If your vehicle has this feature, you can lock and unlock
your doors from about 3 feet (1 m) up to 30 feet (9 m)
away using the remote keyless entry transmitter supplied
with your vehicle.
Your keyless entry system operates on a radio frequency
subject to Federal Communications Commission (FCC)
Rules and with Industry Canada.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired
operation.
This device complies with RSS
-210 of Industry Canada.
Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this
device must accept any interference received, including
interference that may cause undesired operation of
the device.

2-11
Changes or modifications to this system by other than an
authorized service facility could void authorization to
use this equipment.
At times you may notice a decrease in range. This is
normal for any remote keyless entry system. If the
transmitter does not work or if you have to stand closer
to your vehicle for the transmitter to work, try this:

Check the distance. You may be too far from your
vehicle. You may need to stand closer during rainy
or snowy weather.

Check the location. Other vehicles or objects may be
blocking the signal. Take a few steps to the left or
right, hold the transmitter higher, and try again.

Check to determine if battery replacement or
resynchronization is necessary. See the instructions
that follow.

If you're still having trouble, see your dealer or a
qualified technician for service.Operation
UNLOCK: When you
press UNLOCK, the
driver's door will
unlock automatically,
the parking lamps will
flash and the interior
lamps will go on.
If you press UNLOCK again within three seconds, the
remaining doors will unlock, the parking lamps will
flash and the interior lamps will go on.
LOCK: Press LOCK to lock all the doors. Press LOCK
again within three seconds and the horn will chirp.
REAR: When you press the REAR button twice within
three seconds to release the rear liftglass, the parking
lamps will flash and the interior lamps will go on. If
your vehicle has an automatic transmission, the
transmission must be in PARK (P) or NEUTRAL (N).
If your vehicle has a manual transmission, you must
engage the parking brake.

2-12
Panic Alarm Button
When the panic button with the horn symbol on the key
transmitter is pressed, the horn will sound and the
headlamps and taillamps will flash for up to 30 seconds.
This can be turned off by pressing the panic button
again, waiting for 30 seconds, or starting the vehicle.
Matching Transmitter(s) to Your Vehicle
Each remote keyless entry transmitter is coded to
prevent another transmitter from unlocking your vehicle.
If a transmitter is lost or stolen, a replacement can be
purchased through your dealer. Remember to bring any
remaining transmitters with you when you go to your
dealer. When the dealer matches the replacement
transmitter to your vehicle, any remaining transmitters
must also be matched. Once your dealer has coded the
new transmitter, the lost transmitter will not unlock your
vehicle. Each vehicle can have a maximum of four
transmitters matched to it.
Battery Replacement
Under normal use, the battery in your remote keyless
entry transmitter should last about two years.
You can tell the battery is weak if the transmitter won't
work at the normal range in any location. If you have to
get close to your vehicle before the transmitter works,
it's probably time to change the battery.
NOTICE:
When replacing the battery, use care not to touch
any of the circuitry. Static from your body
transferred to these surfaces may damage the
transmitter.

2-13
To replace the battery in the keyless entry transmitter do
the following:
1. Insert an object like a thin coin in the slot between
the covers of the transmitter housing near the key
ring hole. Remove the bottom by twisting the object.
2. Remove and replace the battery with a three
-volt
CR2032 or equivalent battery, positive (+) side up.
3. Align the covers and snap them together.
4. Check the operation of the transmitter.
Rear Window
CAUTION:
It can be dangerous to drive with the rear
window or endgate open because carbon
monoxide (CO) gas can come into your vehicle.
You can't see or smell CO. It can cause
unconsciousness and even death.
If you must drive with the rear window or
endgate open or if electrical wiring or other cable
connections must pass through the seal between
the body and the rear window or endgate:

Make sure all other windows are shut.

Turn the fan on your heating or cooling
system to its highest speed with the setting
on VENT and OUTSIDE AIR. That will
force outside air into your vehicle. See
ªComfort Controlsº in the Index.

If you have air outlets on or under the
instrument panel, open them all the way.
See ªEngine Exhaustº in the Index.

2-14
Endgate Release
To open a manual lock system from the outside, insert
the key into the lock and turn it counterclockwise to
unlock the glass.
To open a power lock system from the outside, insert the
key into the lock button and turn it counterclockwise.
All the doors will then unlock.
If your vehicle is equipped with the keyless entry
system, your vehicle does not have a lock on the
endgate. It is equipped with a push
-button to release
the glass.
You may also use the keyless entry system, or the power
door locks (if equipped).
When the doors are
unlocked, press the button
to open the glass.