OnStar Services

See also:

Manual Rearview Mirror
To adjust the inside rearview mirror, hold the rearview mirror in the center and move it to view the area behind the vehicle. For vehicles with a manual rearview mirror, push the tab forward for da ...

Engine Coolant Heater
Your vehicle may have an engine coolant heater. In very cold weather, 0°F (−18°C) or colder, the engine coolant heater can help. You will get easier starting and better fuel economy durin ...

Battery
Refer to the replacement number shown on the original battery label when a new battery is needed. See Engine Compartment Overview  for battery location. WARNING Battery posts, terminals, an ...