ACDelco 10326054 GM Original Equipment Brake Pressure Modulator Valve with Electronic Brake and Traction Control Module Helps provide controlled braking in icy or wet conditions Helps tires provide maximum grip with the road surface Reads vehicle sensors to trigger anti-lock braking system (ABS) and traction control system Helps to reduce wheel slippage for controlled acceleration, and stopping, in slippery situations GM-recommended replacement part for your GM vehicles original factory component