GM Service Manual Online
For 1990-2009 cars only

Competitive Driving Mode STS-V

The driver can select this optional handling mode by pressing the Traction Control button, located near the shift lever, twice within five seconds. Competitive driving mode allows the driver to have control of the power applied to the rear wheels, while the StabiliTrak® system helps steer the vehicle by selective brake application. In competitive mode, the levels at which StabiliTrak® is engaged have been modified to better suit a performance driving environment. When the traction control warning light is on, the Traction Control System will not be operating. Adjust your driving accordingly.

When you press the Traction Control button again, the Traction Control System will be on. The traction engaged symbol will be displayed temporarily in the DIC and a chime will be heard. See DIC Warnings and Messages for more information.