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 operate if the battery is discharged or disconnected.
See also:
Rear Seat Pass-Through Door
Some vehicles have a rear seat pass-through door in the center of the rear
seatback. Fold down the center armrest and push down on the latch to open the
door. ...
Remote Keyless Entry (RKE) System
On some models, the RKE
transmitter is used to lock and
unlock the doors from up to
20m (65 ft) away from the vehicle.
On other models, it can be used
up to 60m (195 ft) away.
Key Access
...
Speedometer
The speedometer shows the vehicle speed in both kilometers per hour (km/h) and
miles per hour (mph). ...