Transmission Messages

ALL WHEEL DRIVE OFF If your vehicle has the All-Wheel Drive (AWD) system, this message displays when there is a compact spare tire on the vehicle, when the Antilock Brake System (ABS) warning lig ...

Vehicle Speed Messages

SPEED LIMITED TO XXX MPH (KM/H) This message displays when your vehicle speed is limited to 128 km/h (80 mph) because the vehicle detects a problem in the speed variable assist steering system. Ha ...

See also:

Connections
OnStar Hands-Free Calling allows calls to be made and received from the vehicle. The vehicle can also be controlled from a cell phone through the OnStar mobile app. See www.onstar.com for coverage ...

4WD shift indicator
The 4WD shift indicator is displayed in the vehicle information display. The indicator should turn off within 1 second after placing the ignition switch in the ON position. While the engin ...

Topping up the coolant
WARNING Never remove the filler cap when the engine is hot - escaping steam or scalding water could cause serious personal injury. Avoid spilling antifreeze onto a hot engine - a fire may res ...