2010 Toyota Highlander Owners Manual - Page 1352

1-6. Theft deterrent system Vehicles with navigation system Vehicles without smart key system: The indicator light flashes after the key has been removed from the engine switch to indicate that the system is operating. The indicator light stops flashing after the registered key has been inserted into the engine switch to indicate that the system has been canceled. Vehicles with smart key system: The indicator light flashes after the "ENGINE START STOP" switch has been turned OFF to indicate that the system is operating. The indicator light stops flashing after the "ENGINE START STOP" switch has been turned to ACCESSORY or IGNITION ON mode to indicate that the system has been canceled. 1 Before driving 121