Toyota 2008 Prius Quick Reference Manual page 457

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:Driver's and front passenger's seat belt reminder buzzer:
The driver's and front passenger's seat belts reminder sounds 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 at lest 12 mph (20 km/h). Then, if the seat belt is still unfastened,
the buzzer will sound in a different tone for 20 more seconds.
Have the malfunction repaired immediately. (vehicles with smart
key system)
After taking the specified steps to correct the suspected problem,
check that the warning light turn off.
Alarm
Interior and
exterior alarm:
One beep
(sounds con-
tinuously)
Interior alarm:
One beep
Exterior alarm:
3 beeps
PRIUS_U_(L/O_0802)
Warning
Details
light
The driver has
removed the smart key
from the vehicle while
the hybrid system is
not OFF and the shift
lever is in a position
other than "P".
The driver has
removed the smart key
from the vehicle while
the hybrid system is
not OFF and the shift
lever is in the "P" posi-
tion.
A passenger has
removed the smart key
from the vehicle while
the hybrid system is
not OFF.
5-2. Steps to take in an emergency
Correction procedure
Pressing the "P"
position switch
before removing the
smart key from the
vehicle and turning
the hybrid system
OFF.
Turn the hybrid sys-
tem OFF and
remove the key
from the vehicle.
Check whether the
passenger leaving
the vehicle is carry-
ing the smart key.
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