2013 Toyota Sienna Owners Manual - Page 1049

5-2. Steps to take in an emergency Warning light Warning light/Details Active Torque Control 4WD system warning light When the light blinks: The system has been overloaded and front-wheel drive has been automatically engaged. When the light comes on: Malfunction in the Active Torque Control 4WD system. Correction procedure (AWD models) Drop your speed or stop the vehicle until the light stops blinking. (Do not stop the engine.) Have the system checked by your Toyota dealer. *1:Open door warning buzzer: A buzzer will sound if the vehicle reaches a speed of 3 mph (5 km/h) with any door open. *2:Driver's and front passenger's seat belt warning buzzers: The driver's and front passenger's seat belt warning buzzers sound to alert the driver and front passenger that his or her seat belt is not fastened. The buzzer sounds intermittently for 10 seconds after the vehicle has reached a speed of 12 mph (20 km/h). Then, if the seat belt is still unfastened, the buzzer will sound at a different tone for 20 more seconds. *3:Refer to the separate "Scheduled Maintenance Guide" or "Owner's Manual Supplement" for the maintenance interval applicable to your vehicle. 752 SIENNA_OM_OM45472U_(U)