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.
The Driver Information Center (DIC) will display a KEY FOB # BATTERY LOW message when the 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.
To replace the battery in the remote keyless entry transmitter do the following:

1. Insert a thin coin in the slot between the
covers of the transmitter housing. Gently
pry the transmitter apart.
2. Remove and replace the battery with a
three-volt CR2032 or equivalent battery.
3. Align the covers and snap them together.
4. Check the operation of the transmitter.
See also:
Vehicle and Power Issues
OnStar services require a vehicle
electrical system, wireless service,
and GPS satellite technologies to be
available and operating for features
to function properly. These systems
may not o ...
Battery Voltage and Charging Messages
BATTERY SAVER ACTIVE
This message displays when the vehicle has detected that the battery voltage
is dropping beyond a reasonable point. The battery saver system starts reducing
certain features ...
Dome Lamps
Dome Lamps
The interior lamps control located in
the overhead console controls both
the front and rear interior lamps.
To operate:
(Off): Turns the lamps off.
(Door): Turns the lamps on
...
