Toyota Highlander Service Manual page 711

The engine switch is turned off automatically
(vehicles with a smart key system)
●
The auto power off function will be operated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not running) for a period of
time. (→P. 223)
A warning buzzer sounds during driving
●
The seat belt reminder light is flashing
Are the driver and the passengers wearing the seat belts? (→P. 582)
●
The parking brake indicator is on
Is the parking brake released? (→P. 234)
Depending on the situation, other types of warning buzzer may also sound.
(→P. 581, 591)
An alarm is activated and the horn sounds
(vehicles with an alarm)
●
Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. (→P. 82)
Vehicles without a smart key system:
To stop the alarm, turn the engine switch to the "ON" position or start the
engine.
Vehicles with a smart key system:
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine.
HIGHLANDER_U (OM0E017U)
What to do if... (Troubleshooting)
711