GMC Terrain: OnStar Additional Information - OnStar - GMC Terrain Owner's ManualGMC Terrain: OnStar Additional Information

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 ...

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 ownership has changed, ...

See also:

Instrument Panel Dimmer
Rotate the center portion of the lever to the extreme bottom position to fully dim the instrument panel lights and prevent the interior lights from illuminating when a door is opened. Rotate th ...

Service The Parksense Rear Park Assist System
When the ParkSense Rear Park Assist System is malfunctioning, the instrument cluster will actuate a single chime, once per ignition cycle, and it will display the “SERVICE PARK ASSIST SYSTEM†...

Fuel Economy Mode
Vehicles with a 2.4L engine have a Fuel Economy Mode. When engaged, fuel economy mode can improve the vehicle's fuel economy. Press the “eco” (economy) button by the shift lever to turn t ...