See also:

Service Vehicle Messages
SERVICE AC SYSTEM This message is displayed if there is a problem with the air conditioning system. Take the vehicle to your dealer for service. SERVICE POWER STEERING This message is displayed i ...

Under the Hood
GM's two-mode hybrid system enables "full" hybrid operation with the capability to cruise on electric power up to 30 mph. The gas engine kicks in if more acceleration is needed, as well ...

Key Lock Release
Vehicles with an automatic transmission are equipped with an electronic key lock release system. The key lock release is designed to prevent ignition key removal unless the shift lever is in P ...