See also:

Manual Transmission
If the vehicle has a manual transmission, the shift lever is located on the center console between the front seats. The following explains how to operate the manual transmission. CTS CT ...

Power Liftgate
On vehicles with a power liftgate, the switch is on the driver door. The vehicle must be in P (Park) to use the power feature. The taillamps flash when the power liftgate moves. WARNING ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the v ...