OnStar

See also:

What to Use
To determine what kind of fluid to use, see Recommended Fluids and Lubricants. Always use the proper fluid. ...

Tire Rotation and Required Services Every 12 000 km/7,500 mi
Rotate the tires, if recommended for the vehicle, and perform the following services. See Tire Rotation. • Check engine oil level and oil life percentage. If needed, change engine oil and ...

Leaving the Vehicle with the Engine Running
WARNING! It can be dangerous to leave the vehicle with the engine running. The vehicle could move suddenly if the shift lever is not fully in P (Park) with the parking brake firmly set. And, ...