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 veh ...

OnStar Additional Information

Transferring Service Push to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle owne ...

See also:

Headlight washer (if so equipped)
The headlight washer operates when the headlight is on and the ignition switch is in the ON position. Pull the windshield washer switch toward you. The headlight washer operates with the win ...

Playing a portable device
If you are using a USB mass storage device or approved iPod, you can control playback using the touch screen controls. If you are using a Bluetooth® device, you can control playback using the touc ...

Slippery road surfaces
WARNING   The outside temperature indicator is not designed to serve as an ice-warning device and is therefore unsuitable for that purpose. Indicated temperatures just above the freezin ...