See also:

Driving On Grades
Reduce speed and shift to a lower gear before starting down a long or steep downgrade. If the transmission is not shifted down, the brakes might have to be used so much that they would get h ...

Potential Issues
Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five ...

Fuel Gauge
When the ignition is on, the fuel gauge indicates how much fuel is left in the tank. An arrow on the fuel gauge indicates the side of the vehicle the fuel door is on. The FUEL LEVEL LOW me ...