1999 CHEVROLET CORVETTE key battery

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Your vehicle is equipped with a diagnostic module,
which records information about the air bag system.
The module records information about the readiness
of the system, when the sensors are activated and
driver's safety belt usage at deployment. Some
modules also record speed, engine rpm, brake and
throttle data.

Let only qualified technicians work on your air bag
system. Improper service can mean that your air bag
system won't work properly. See your dealer
for service.
NOTICE:
If you damage the covering for the driver's or the
passenger's air bag, the bag may not work
properly. You may have to replace the air bag
module in the steering wheel or both the air bag
module and the instrument panel for the
passenger's air bag. Do not open or break the air
bag coverings.
Servicing Your Air Bag-Equipped Vehicle
Air bags affect how your vehicle should be serviced.
There are parts of the air bag system in several places
around your vehicle. You don't want the system to
inflate while someone is working on your vehicle. Your
dealer and the Corvette Service Manual have
information about servicing your vehicle and the air bag
system. To purchase a service manual, see ªService and
Owner Publicationsº in the Index.
CAUTION:
For up to 10 minutes after the ignition key is
turned off and the battery is disconnected, an air
bag can still inflate during improper service. You
can be injured if you are close to an air bag when
it inflates. Avoid yellow wires, wires wrapped
with yellow tape or yellow connectors. They are
probably part of the air bag system. Be sure to
follow proper service procedures, and make sure
the person performing work for you is qualified
to do so.
The air bag system does not need regular maintenance.

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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.
Changes or modifications to this system by other than
an authorized service facility could void authorization to
use this equipment.
If you ever notice a decrease in the key fob transmitter
range, try doing one of the following:

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

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 make sure that an electronic device such
as a cellular phone or lap top computer is not
causing interference.
Try to resynchronize the transmitter. See
ªResynchronizing Your Transmitterº in this section.

If you're still having trouble, see your dealer or a
qualified technician for service.
Operation
You don't have to do anything for the RFA to work
when the passive feature is on.

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The system will allow you to lock your keys in the
vehicle if you didn't leave them in the ignition (for
example, you leave the keys on the seat). You should,
however, be able to use the key fob transmitter to get
them out as long as the passive slide switch is in the ON
position. After 15 seconds of no motion, the key fob
transmitter shuts down to save the battery. Wait about
30 seconds, then rock the vehicle. The key fob
transmitter should ªwake upº and unlock the doors.
This system can't guarantee that you will never be
locked out of your vehicle. If the battery is low or if the
key fob transmitter is in a place where the signal can't
get to the antenna, it won't unlock the doors. Always
remember to take your keys with you.
Panic Alarm Button
When you press the special horn button on the key fob
transmitter, the horn will sound. This panic alarm button
will allow you to attract attention, if needed.
If the horn alarm sounds, there are three ways to turn
it off:

Push the panic alarm button again on the key
fob transmitter.

Wait 90 seconds, and the horn will turn off by itself.

Turn the key to any position in the ignition,
except OFF.RFA Settings
You can adjust the settings on the system through the
Driver Information Center (DIC). You can have just the
driver's or both doors lock passively unlock, change the
type of alarm used by the theft
-deterrent system, or have
the lamps come on when you approach the vehicle. See
ªDriver Information Center Controls and Displaysº in
the Index for more information.
Turning the System Off
You can disable the passive feature by moving the
transmitter's slider switch to OFF. The vehicle will no
longer automatically disarm your theft
-deterrent system
or unlock the doors. However, you will be able to
actively control the use of the door locks, the
hatch/trunk lid release and the panic alarm using the
four transmitter buttons. (These buttons also work
when the passive feature is on.)
Make sure to fully slide the switch to either side when
turning the key fob transmitter on and off. You
should feel a double click when sliding the switch back
and forth.
You can also check whether the passive system is on or
off by closing the door and moving away from the
vehicle with the key and key fob transmitter. If the doors
lock, the passive system is on.

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To match transmitters to your vehicle:
1. Turn the ignition key to ON.
2. Clear any warning messages on the Driver
Information Center (DIC) by pressing the
RESET button.
3. Press the OPTIONS button on the DIC several times
until the blank page is displayed, then press and hold
the RESET button for two seconds.
4. When the message FOB TRAINING is displayed,
push the RESET button once. The message
HOLD LK + UNLK 1ST FOB in the DIC will
be displayed.
5. Press and hold the LOCK and UNLOCK buttons on
the transmitter simultaneously for 15 seconds.
6. When a transmitter is learned (matched), the DIC
will display FOB LEARNED and then prompt you
to learn the next transmitter.
7. Repeat Steps 5 and 6 for each additional transmitter.
8. Remove the key from the ignition.The programming mode will shut off if:

You don't program any transmitters for two minutes.

You take the key out of the ignition.

You have programmed three transmitters.
Battery Replacement
Under normal use, the battery in your key fob
transmitter should last about 18 months.
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.

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2-13 Replacing the Battery in the Key
Fob Transmitter
1. Insert a coin into the slot on the back of the
transmitter and gently pry apart the front and back.
2. Gently pull the battery out of the transmitter.
3. Put the new battery in the transmitter, positive (+)
side up. Use a battery, type CR2450, or equivalent.
4. Reassemble the transmitter. Make sure to put it
together so water won't get in.
5. Resynchronize the transmitter. (See
ªResynchronizing Your Transmitterº following.
6. Test the transmitter.

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Resynchronizing Your Transmitter
Your RFA system uses a continually changing code for
increased security. Normally, the receiver in your
vehicle will keep track of this changing code. If your
vehicle does not respond to your transmitter, do the
following to determine what's wrong:
1. Get closer to the vehicle and try pressing a button
again. Your battery may be low (If so, see ªBattery
Replacementº in the Index).
2. While standing close to your vehicle, press the
LOCK and UNLOCK buttons on your transmitter at
the same time and hold for seven seconds. This will
attempt to resynchronize the security code in your
RFA key fob transmitter.
3. When resynchronization is achieved, the horn
will chirp.
Loss of synchronization will occur after transmitter
battery replacement or disconnection of the
vehicle's battery.
If attempts to resynchronize your transmitter to the
vehicle are not successful, you may need to match the
transmitter to the vehicle. See ªMatching Transmitter(s)
to Your Vehicleº in the Index.
Remote Hatch/Trunk Lid Release
To use the remote hatch/trunk lid release on automatic
transmission vehicles, your vehicle must be in PARK (P)
or NEUTRAL (N). For manual transmissions, set the
parking brake. See ªParking Brakeº in the Index.
Press the button with the trunk symbol on it, located at
the left
-hand side of the steering column on the
instrument panel, to release the hatch/trunk lid from
inside your vehicle.

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The key fob transmitter will also release the hatch/trunk lid.
See ªRemote Function Actuation Systemº in the Index.
If your vehicle is equipped with a hatch and you have
lost battery power, use the manual release cables to open
the hatch. To access the cables, remove the two access
panels located in the rear of the trunk area. There is one
cable located under each access panel. (See ªRear
Storage Compartmentsº in the Index for
more information.)
Pull each cable straight down for each latch to release
the hatch.If your vehicle is equipped with a convertible
top/hardtop and you have lost battery power, use the
manual release cable to open the trunk lid. To access the
cable, remove the center storage compartment lid
located in the rear of the trunk area. (See ªRear Storage
Compartmentsº in the Index for more information.)
Pull the cable straight down to release the trunk lid.

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Now, if a door or the hatch/trunk lid is opened without
the key or the key fob transmitter, the alarm will go off.
Your horn will sound for two minutes, then it will go off
to save battery power. And, your vehicle won't start.
The theft
-deterrent system won't arm if you lock the
doors with a key, the manual door lock, or if you use the
power door lock after the doors are closed.
If your passenger stays in the vehicle when you leave
with the keys, have the passenger lock the vehicle after
the doors are closed. This way the alarm won't arm, and
your passenger won't set it off.
PASS-Key

Your vehicle is equipped
with the PASS
-Key
(Personalized Automotive
Security System)
theft
-deterrent system.
PASS
-Key is a passive
theft
-deterrent system. It
works when you insert or
remove the key from
the ignition.PASS
-Key uses a resistor pellet in the ignition key that
matches a decoder in your vehicle.
When the PASS
-Key system senses that someone is
using the wrong key, it shuts down the vehicle's starter
and fuel systems. For about three minutes, the starter
won't work and fuel won't go to the engine. If someone
tries to start your vehicle again or uses another key
during this time, the shutdown period will start over
again. This discourages someone from randomly trying
different keys with different resistor pellets in an attempt
to make a match.
The key must be clean and dry before it's inserted in the
ignition or the engine may not start. If the SECURITY
light comes on, the key may be dirty or wet.
If this happens and the starter won't work, turn the
ignition off. Clean and dry the key, wait three minutes
and try again. If the starter still won't work, wait three
minutes and try the other ignition key. At this time, you
may also want to check the fuses (see ªFuses and Circuit
Breakersº in the Index). If the starter won't work with
the other key, your vehicle needs service. If your vehicle
does start, the first ignition key may be faulty. See your
dealer or a locksmith who can service the PASS
-Key.