2012 Toyota Tacoma Owners Manual - Page 525

2-4. Using other driving systems To disable VSC, Trailer Sway Control and TRAC (2WD models and 2WD mode on 4WD models) If the vehicle gets stuck in fresh snow or mud, VSC, Trailer Sway Control and TRAC may reduce power from the engine to the wheels. You may need to turn the system off to enable you to rock the vehicle in order to free it.