Chevrolet Malibu 2007 Malibu Owner's Manual page 102

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
GM dealer. Remember to bring any remaining
transmitters with you when you go to your dealer.
Each vehicle can have a maximum of
four transmitters matched to it.
102
Battery Replacement
Under normal use, the battery in your remote
keyless entry transmitter should last about
four years.
You can tell the battery is weak if the transmitter
will not work at the normal range in any location.
If you have to get close to your vehicle before
the transmitter works, it is probably time to change
the battery.
The KEY FOB BATT LOW message in the
vehicle's DIC will display if the remote keyless
entry transmitter battery is low.
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.