The Blind Spot Monitor is a system that uses rear side radar sensors installed on the inner side of the rear bumper on the left and right side to assist the driver in confirming safety when changing lanes.
WARNING
â– Cautions regarding the use of the system
System components

â– Outside rear view mirror indicator visibility
In strong sunlight, the outside rear view mirror indicator may be difficult to see.
â– When "Blind Spot Monitor Unavailable" is shown on the multi-information display
Ice, snow, mud, etc., may be attached to the rear bumper around the sensors. The system should return to normal operation after removing the ice, snow, mud, etc. from the rear bumper. Additionally, the sensors may not operate normally when driving in extremely hot or cold environments.
â– When "Blind Spot Monitor Malfunction Visit Your Dealer" is shown on the multi-information display
There may be a sensor malfunction of misaligned. Have the vehicle inspected by your Toyota dealer.
â– Customization
Some functions can be customized.
WARNING
â– To ensure the system can operate properly
Blind Spot Monitor sensors are installed behind the left and right sides of the rear bumper respectively.
Observe the following to ensure the Blind Spot Monitor can operate correctly.
If a sensor or its surrounding area on the rear bumper is dirty or covered with snow, the Blind Spot Monitor may not operate and a warning message will be displayed. In this situation, clear off the dirt or snow and drive the vehicle with the operation conditions of the BSM function satisfied for approximately 60 minutes.
If the warning message does not disappear, have the vehicle inspected by your Toyota dealer.

If a sensor is moved even slightly off position, the system may malfunction and vehicles may not be detected correctly.
In the following situations, have your vehicle inspected by your Toyota dealer.
Turning the Blind Spot Monitor on/off
The Blind Spot Monitor
can
be enabled/disabled on
of
the multi-information display.
When the Blind Spot Monitor is enabled, the BSM indicator will illuminate.
Canceling and resuming
the speed control
Blind Spot Monitor operationRear occupant classification sensor lh collision detection
Description
Dtc b1787 is output when the occupant classification ecu receives a collision
detection signal sent by
the rear occupant classification sensor lh when an accident occurs.
Dtc b1787 is also output when the front seat assembly rh is subjected to a
strong impact, even if an
actua ...
Check 4wd control ecu (for 4wd)
Notice:
Turn the ignition switch off before measuring the
resistances of the main wire and branch wire.
After the ignition switch is turned off, check that the
key reminder warning system and light reminder
warning system are not in operation.
Before measuring the resistance, leave the ...
Door control switch
Inspection
Inspect power window regulator master
switch assembly (door control switch)
Measure the resistance of the door control switch.
Standard resistance
If the result is not as specified, replace the power
window regulator master switch assembly.
Inspect door control s ...