Pontiac 1999 Firebird - Manual (Page 67)

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Resynchronization
Resynchronization may be necessary due to the security
method used by the remote keyless entry system. The
transmitter does not send the same signal twice to the
receiver. The receiver will not respond to a signal it has
been sent previously. This prevents anyone from recording
and playing back the signal from the transmitter.
To resynchronize the transmitter with the receiver, stand
close to your vehicle, and at the same time press and
hold the LOCK and UNLOCK buttons on the
transmitter for about eight seconds. The door locks
should cycle and the parking lamps should flash to
confirm synchronization. If this does not happen, you
may need to replace the battery in your transmitter or
match the transmitter to your vehicle.
Hatch
CAUTION:
It can be dangerous to drive with the hatch 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 hatch open or if
electrical wiring or other cable connections must
pass through the seal between the body and
the hatch:
D Make sure all other windows are shut.
D Turn the fan on your heating or cooling
system to its highest speed with the setting
on VENT. That will force outside air into
your vehicle. See “Comfort Controls” in
the Index.
D If you have air outlets on or under the
instrument panel, open them all the way.
See “Engine Exhaust” in the Index.