2000 CHEVROLET IMPALA ECU

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2-6 Rear-Door Security Locks
Your vehicle is equipped with rear-door security locks that
help prevent passengers from opening the rear doors of
your vehicle from the inside. To use one of these locks:
1. Open one of the rear doors.
2. On the inside of the rear door will be a lock. Insert
your key into this lock and turn it upward. This will
engage the safety lock. To disengage the feature, turn
the lock downward.
3. Close the door.
4. Do the same thing to the other rear door lock.
The rear doors of your vehicle cannot be opened from
the inside when this feature is in use. If you want to
open the rear door when the security lock is on, unlock
the door and then open the door from the outside.
Lockout Protection Feature
To protect you from locking your key in the vehicle, this
feature stops the power door locks from locking when
the keys are in the ignition and a door is open.
If a power lock switch is pressed when a door is open
and the key is in the ignition, all of the doors will lock
and then the driver's door will unlock.
Leaving Your Vehicle
If you are leaving the vehicle, take your keys, open your
door and set the locks from inside. Then get out and
close the door.
Remote Keyless Entry (Option)
If your vehicle has this feature, you can lock and unlock
your doors or unlock your trunk from about 3 feet (1 m)
up to 30 feet (9 m) away using the remote keyless entry
transmitter supplied with your vehicle.
Your remote 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.

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2-8
Panic Alarm Button
This feature allows you to activate an alarm by pressing
a button on the RKE transmitter. Your vehicle's ignition
must be off for the instant alarm to work. When you
press the horn button on the RKE transmitter, your
vehicle's headlamps will flash, the horn will honk
repeatedly and your interior lamps will illuminate
attracting attention if you need it. The alarm will
continue until:

You press the alarm button on the RKE transmitter a
second time,

the vehicle's ignition is in ON, or

an alarm period of 110 seconds has elapsed.
Transmitter Verification (If Equipped)
This feature provides feedback to the holder of the RKE
transmitter that a command has been received by the
keyless entry receiver. The parking lamps will flash on
every lock and unlock command and the horn will sound
only if the LOCK button is pressed two times or more
within five seconds. This allows for silent operation of
locking and unlocking, unless a confirming horn chirp is
desired. Other options may be selected for this feature
(see ªVehicle Customization Settingsº in the Index).Illumination on Remote Activation
This feature provides interior illumination when a
remote keyless entry door unlock command is received
and executed by your vehicle. The interior lamps will
illuminate until your vehicle's ignition is turned to ON
or until an illumination period of 40 seconds has elapsed
or the doors are locked with the power lock switch or
the RKE transmitter. If a door is opened during the
illumination period, the timed illumination will be
canceled, and the interior lamps will remain on since a
door is open.
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 only four transmitters
matched to it.

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2-12 Parking at Night
Park in a lighted spot, close all windows and lock your
vehicle. Remember to keep your valuables out of sight.
Put them in a storage area, or take them with you.
Parking Lots
If you park in a lot where someone will be watching
your vehicle, it's best to lock it up and take your keys.
But what if you have to leave your ignition key?

If possible, park in a busy, well lit area.

Put your valuables in a storage area, like your
trunk or glove box. Be sure to close and lock the
storage area.

Close all windows.

Lock the glove box.

Lock all the doors except the driver's.

Then take the door key and remote keyless entry
transmitter with you.
Content Theft-Deterrent
(If Equipped)
Your vehicle may be equipped with a content
theft
-deterrent alarm system.
With this system, a light on the radio will flash.
This light reminds you to activate the theft
-deterrent
system. Here's how to do it:
1. Open the door.
2. Lock the door with the power door lock switch or the
remote keyless entry transmitter. The SECURITY
light should come on and stay on. If using the remote
keyless entry transmitter, the door does not need
to be open.
3. Close all doors. The SECURITY light will slowly
flash once the system is armed.

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2-13
Once armed, the alarm will go off if someone tries to
enter the vehicle (without using the remote keyless entry
transmitter or a key) or turns the ignition on with an
incorrect key. The horn will sound and your vehicle's
parking lamps will flash for 110 seconds.
When the alarm is armed, the trunk may be opened with
the remote keyless entry transmitter. If you use the key
to open the trunk, the alarm will sound.
Arming with the Power Lock Switch
Your alarm system will arm when you use either power
lock switch to lock the doors while any door or the trunk
is open and the key is removed from the ignition.
The SECURITY light flashes quickly to let you know
when the system is ready to arm with the power door lock
switches. The SECURITY light will stop flashing and stay
on when you press the rear of the power lock switch, to let
you know the system is arming. After all doors and the
trunk are closed and locked, the SECURITY light will go
off to let you know the system is armed.
Arming with the Remote Keyless
Entry Transmitter
Your alarm system will arm when you use your remote
keyless entry transmitter to lock the doors, if the key is
not in the ignition. The security light will turn on to let
you know the system is arming. After all doors and the
trunk are closed and locked, the security light will begin
flashing at a very slow rate to let you know the system
is armed.
Disarming with the Remote Keyless
Entry Transmitter
Your alarm system will disarm when you use your
remote keyless entry transmitter to unlock the doors.
The security light will flash to let you know the system
is no longer armed.
Disarming with Your Key
Your alarm system will disarm when you use your key
to unlock the doors. The security light will flash to let
you know the system is no longer armed.

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2-19
FOB PROG (Remote Keyless Entry Transmitter
Programming): This feature allows you to match the
remote keyless entry transmitter to your vehicle.
To match the transmitter:
1. Scroll, using the SEEK up or down arrows, until
FOB PROG appears on the display.
2. Press the PREV or NEXT button to enter the
submenu. The current selection will have an asterisk
next to it. BEGIN will be displayed.
3. Press the DISP button to start programming. When
the message PUSH FOB flashes, press and hold the
LOCK and UNLOCK buttons on the first transmitter
at the same time for 15 seconds. A chime will be
heard to verify the transmitter is learned.
4. Repeat Step 3 for each additional transmitter.
EXIT (Exit Feature Customization Mode): This feature
allows you to exit the vehicle customization
programming. To exit:

Scroll until EXIT appears on the display.

Press the DISP button to exit programming.
A chime will be heard to verify the exit.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, fuel is disabled.
During normal operation, the SECURITY message will
go off approximately five seconds after the key is turned
to the ON ignition position.
If the engine stalls and the SECURITY message flashes,
wait until the light stops flashing before trying to restart
the engine. Remember to release the key from START
as soon as the engine starts.
If the engine is running and the SECURITY message
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 Chevrolet Roadside Assistance
Center at 1
-800-CHEV-USA (1-800-243-8872).
(In Canada, call 1
-800-268-6800.)

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2-55
Universal Transmitter (If Equipped)
This transmitter allows you to consolidate the functions of
up to three individual hand
-held transmitters. It will
operate garage doors and gates, or with the accessory
package, other devices controlled by radio frequency such
as home/office lighting systems and security systems.
The transmitter will learn and transmit the frequencies
of most current transmitters and is powered by your
vehicle's battery and charging system.
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, including
interference that may cause undesired operation
of the device.
Changes and modifications to this system by other than
an authorized service facility could void authorization to
use this equipment.
Programming the Transmitter
Do not use the transmitter with any garage door opener
that does not have the ªstop and reverseº feature.
This includes any garage door opener model
manufactured before April 1, 1982.
Be sure that people and objects are clear of the garage
door you are programming!
Your vehicle's engine should be turned off while
programming the transmitter. Follow these steps to
program up to three channels:
1. If you have not previously programmed a universal
channel, proceed to Step 2. Otherwise, hold down
the two outside buttons on the universal transmitter
until the red light begins to flash rapidly
(approximately 20 seconds). Then release the
buttons. This procedure initializes the memory and
erases any previous settings for all three channels.

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2-56
2. Hold the end of the hand-held transmitter against the
bottom surface of the universal transmitter so that
you can still see the red light.
3. Decide which one of the three channels you want to
program. Using both hands, press the hand
-held
transmitter button and the desired button on the
universal transmitter. Continue to hold both buttons
through Step 4.
4. Hold down both buttons until you see the red light
on the universal transmitter flash rapidly. The rapid
flashing, which could take up to 90 seconds,
indicates that the universal transmitter has been
programmed. Release both buttons once the light
starts to flash rapidly.
If you have trouble programming the universal
transmitter, make sure that you have followed the
directions exactly as described and that the battery in the
hand
-held transmitter is not dead. If you still cannot
program it, rotate the hand
-held transmitter end over end
and try again. The universal transmitter may not work
with older garage door openers that do not meet current
Federal Consumer Safety Standards. If you cannot
program the transmitter after repeated attempts, consult
your dealer.Be sure to keep the original hand
-held transmitter
in case you need to erase and reprogram the
universal transmitter.
Operating the Transmitter
Press and hold the appropriate button on the universal
transmitter. The red light comes on while the signal is
being transmitted.
Note that the effective transmission range of the
universal transmitter may differ from the hand
-held
transmitter and from one channel to another.
Training a Garage Opener with a
ªRolling Codeº Feature
If you programmed the universal transmitter, but the
garage door will not open, and if your garage door opener
was manufactured after 1995, your garage door may have
a security feature that changes the ªcodeº of your garage
door opener every time it is opened or closed.

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2-74
CHANGE ENGINE OIL
This message is displayed
when the engine oil needs to
be changed.
When you change the engine oil, be sure to reset the GM
Oil Life System See ªEngine Oil, When to Changeº in
the Index.
DOOR AJAR
This message will appear if
the driver's door or one of
the passenger's doors is not
completely closed and the
ignition is ON. If you are in
a forward or reverse gear
position you will also hear
four chimes.SECURITY
This message is
displayed to monitor the
Passlock

System.
If the security message is displayed 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.
LOW FUEL
This message is displayed
when your vehicle is low
on fuel. Four chimes will
also sound.
Refer to the fuel gage for a better indication of the
amount of fuel remaining in the fuel tank.