See also:

With Selective Ride Control
1. Move the shift lever to the left from D (Drive). The vehicle will be in Sport Mode. The gear indicator in the DIC will still display a D for Drive, and the SPORT MODE ON message will be ...

SERVICE PARKING BRAKE
This message is displayed when there is a problem with the electric parking brake. See Parking Brake for more information. Take the vehicle to your dealer. ...

Warranty
OnStar equipment may be warranted as part of the new-vehicle limited warranty. The manufacturer of the vehicle furnishes detailed warranty information. ...