2013 Toyota Tacoma Regular Cab Owners Manual - Page 501

2-4. Using other driving systems To disable VSC, Trailer Sway Control and/or TRAC (4WD 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.