OnStar Services

See also:

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 ...

Compass Variance (Zone) Procedure
1. Do not set the compass zone when the vehicle is moving. Only set it when the vehicle is in P (Park). Press the vehicle information button until PRESS TO CHANGE COMPASS ZONE displays. 2. Fi ...

Setting the Month and Day Format
1. Press the CONFIG button and select Time and Date Settings, or press . 2. Highlight Set Date Format. 3. Press SELECT to select MM/DD/YY (month/day/year) or DD/MM/YY (day/month/year). ...