Courtesy Lamps
The courtesy lamps come on automatically when any door is opened and the dome lamp is in the door position.
See also:
Bulb Replacement
For the proper type of replacement
bulbs, see Replacement Bulbs.
For any bulb changing procedure
not listed in this section, contact
your dealer. ...
Cellular and GPS Antennas
Avoid placing items over or near the
antenna to prevent blocking cellular
and GPS signal reception. Cellular
reception is required for OnStar to
send remote signals to the vehicle. ...
Battery Replacement
To change the batteries, do the following:
1. Remove the battery compartment door located
on the bottom of the remote control.
2. Replace the two AA batteries in the
compartment. Make sure that ...