See also:

How the System Works
URPA comes on automatically when the shift lever is moved into R (Reverse). The rear display briefly illuminates to indicate the system is working. URPA operates only at speeds less than 8 km/h ...

Ride Control System Messages
SERVICE TRACTION CONTROL This message displays when there is a problem with the Traction Control System (TCS). When this message is displayed, the system will not limit wheel spin. Adjust your drivin ...

Online Owner Center
Online Owner Center (U.S.) — www.gmownercenter.com/buick Information and services customized for your specific vehicle — all in one convenient place. • Digital owner manual, warranty infor ...