Entry Lighting
The headlamps, parking lamps, taillamps, and most of the interior lamps turn
on briefly when 
is pressed on the
Remote Keyless Entry (RKE) transmitter. After about 30 seconds the exterior lamps
turn off, and then the dome and remaining interior lights will dim to off. Entry
lighting can be disabled manually by changing the ignition out of the OFF position,
or by pressing the RKE transmitter 
button.
This feature can be changed. See Vehicle Personalization .
See also:
Remote Vehicle Start
For vehicles with this feature, the engine can be started from outside the vehicle. ...
OnStar®
If the vehicle has OnStar and you subscribe to the
OnStar services, please refer to the OnStar Terms and
Conditions for information on data collection and use. ...