2013 Toyota Sienna Owners Manual - Page 648

2-4. Using other driving systems 2 When driving BSM main switch Pressing the switch turns the system on or off. When the switch is set to on, the switch's indicator illuminates. Common switch for Blind Spot Monitor function and Rear Cross Traffic Alert function. Outside rear view mirror indicator Blind Spot Monitor function: When a vehicle is detected in the blind spot, the outside rear view mirror indicator comes on while the turn signal lever is not operated and the outside rear view mirror indicator flashes while the turn signal lever is operated. Rear Cross Traffic Alert function: When a vehicle approaching from the right or left rear of the vehicle is detected, the outside rear view mirror indicators flash. Rear Cross Traffic Alert buzzer (Rear Cross Traffic Alert function only) When a vehicle approaching from the right or left rear of the vehicle is detected, a buzzer sounds from behind the rear seat. 347 SIENNA_OM_OM45472U_(U)