Toyota Prius 2018, Owner'S Manual, Page: 388 / 820

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4-5. Using the driving support systems
When the Simple Advanced Parking Guidance System cannot be
operated, or when operation is stopped, canceled, etc., the one of the
following message is displayed on the multi-information display. Take
appropriate action according to the display.
■
When it is not possible to operate
Multi-information display messages
Message Situation•Handling method
The system may be malfunctioning.
→
Turn the power switch off and then start the
hybrid system.
Have the vehicle inspected by your Toyota
dealer if the message is displayed again.
There may be a system failure.
Power steering equipment is temporarily overheat-
ing.
→
Turn the power switch off, wait for a little
while, and then start the hybrid system again.
The hybrid system is not operating.
→
Start the hybrid system.
Ice, snow, dirt, etc., has adhered to the sensor.
→
Remove any ice, snow, dirt, etc.
The sensor is frozen.
→
Once the sensor thaws, the system will return
to normal.
The 12-volt battery has been removed and rein-
stalled.
→
Drive the vehicle straight ahead for 5 seconds
or more at a speed of approximately 22 mph
(35 km/h) or higher.
The S-APGS switch is operated when the vehicle
speed exceeds 16 mph (30 km/h).
→
Operate the switch when the vehicle speed is
approximately 16 mph (30 km/h) or less.