STC (Stability And Traction Control) System
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2014 Volvo XC90, 2013 Volvo XC90, 2012 Volvo XC90, 2011 Volvo XC90, and 2010 Volvo XC90. However, it is still accessible from the selected car via links, so may be relevant.
The STC (stability and traction control) system consists of two functions, stability control and traction control. The stability function is controlled by the engine control module (ECM). The traction control function and TRACS (TRAction Control System) operate in the same way.