OnStar Services

See also:

Manual Transmission
This is the shift pattern for the six-speed manual transmission. To operate the transmission: Notice: Do not rest your hand on the shift lever while driving. The pressure could cause premature wea ...

Using the Call Command
1. Press . ► For vehicles without a navigation system, the system responds “Ready,” followed by a tone. ► For vehicles with a navigation system, the system responds with a tone. Aft ...

Inflation - Tire Pressure
Tires need the correct amount of air pressure to operate effectively. Notice: Do not let anyone tell you that under-inflation or over-inflation is all right. It is not. If your tires do not have e ...