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:
Charging System Light
The charging system light comes on briefly when the ignition is turned on, but
the engine is not running, as a check to show the light is working. The light turns
off when the engine is started. ...
Units
Press the customization button until UNITS:
U.S. (ENGLISH) appears in the display. To select
English or metric, press the select button while
UNITS: U.S. (ENGLISH) is displayed on the DIC.
Pre ...
Securing a Child Restraint in a Rear
Seat Position
When securing a child restraint in a rear seating position,
study the instructions that came with the child restraint to
make sure it is compatible with this vehicle.
If the child restraint has t ...