See also:

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 ...

Adding Coolant to the Intercooler System Coolant (CTS-V)
1. Remove the intercooler system pressure cap when the intercooler system hoses are no longer hot. Turn the pressure cap slowly counterclockwise about one-quarter of a turn. If you hear a ...

Engine Air Cleaner/Filter
The engine air cleaner/filter is in the engine compartment on the driver side of the vehicle, near the front. See Engine Compartment Overview for more information on location. ...