Unable to Connect to OnStar Message
If there is limited cellular coverage or the cellular network has reached maximum capacity, this message may come on. Push 
to try the call again or try again after driving a few miles into another cellular area.
See also:
Low Fuel Warning Light
This light, under the fuel gauge, comes on briefly while the engine is being started.
This light and a chime, if the vehicle is equipped with a radio, comes on when the fuel tank is low on fuel.
T ...
Immobilizer Operation
This vehicle has a passive theft-deterrent system.
The system does not have to be manually armed or disarmed. The vehicle is automatically
immobilized when the key is removed from the ignition.
Th ...
Engine Heater
The engine coolant heater can provide easier starting and better fuel economy during engine warm-up in cold weather conditions at or below 0°F (−18°C). Vehicles with an engine coolant heater s ...