See also:

Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil. The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protection. ...

Automatic Door Locks
For vehicles with an automatic transmission, the doors will lock automatically when all doors are closed, the ignition is on, and the shift lever is moved out of P (Park). The doors will auto ...

Tires
Every new GM vehicle has high-quality tires made by a leading tire manufacturer. See the warranty manual for information regarding the tire warranty and where to get service. For additional infor ...