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:

Phone
Bluetooth For vehicles equipped with Bluetooth capability, the system can interact with many cell phones, allowing: Placement and receipt of calls in a hands-free mode. Sharing of the cell pho ...

Navigation System
Use of the navigation system may result in the storage of destinations, addresses, telephone numbers, and other trip information. See Using the Navigation System   for information on stored ...

Traction Control Operation
TCS is part of the StabiliTrak system. Traction control limits wheel spin by reducing engine power to the wheels (engine speed management) and by applying brakes to each individual wheel (brake-trac ...