OnStar Additional Information

See also:

Engine Coolant
The cooling system in the vehicle is filled with DEX-COOL® engine coolant. This coolant is designed to remain in the vehicle for 5 years or 240 000 km (150,000 mi), whichever occurs first. The follo ...

Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil. The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protection. Engine ...

Driver Information Center (DIC)
The vehicle may have a Driver Information Center (DIC). It displays information about the vehicle and warning messages if there is a system problem detected. DIC messages display in the center of ...