OnStar Additional Information

See also:

Driving for Better Fuel Economy
Driving habits can affect fuel mileage. Here are some driving tips to get the best fuel economy possible. • Avoid fast starts and accelerate smoothly. • Brake gradually and avoid abrupt stops. ...

Engine Oil Life System
When to Change Engine Oil This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on a combination of factors which include engine revolutions, engin ...

SERVICE BRAKE ASSIST
This message may be displayed when there is a problem with the brake boost assist system. When this message is displayed, the brake boost assist motor might be heard operating and you might ...