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:

Tire Pressure
If the vehicle is a hybrid, see the hybrid supplement for more information. Tires need the correct amount of air pressure to operate effectively. Notice: Neither tire underinflation nor overinflatio ...

Front
The front seats can be warmed by built-in heaters. The switches located on the instrument panel can be operated independently of each other. 1. Start the engine. 2. Select heat range. &# ...

Battery warning symbols
Do not allow naked flames or other sources of ignition near the battery, as the battery may emit explosive gases.   Ensure that when working near or handling the battery, suitable eye pro ...