PARKING SENSOR SYSTEM


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Outline

•  The parking sensor system uses ultrasonic sensors to detect obstructions around the vehicle, and notifies the driver of the approximate distance from the vehicle to the surrounding obstruction using sound and an obstruction detection indication while the vehicle is driven at a low speed such as parking in a garage or parallel parking.
Warning
•  The parking sensor system is a device to assist the driver in confirming safety. It is not a substitute for the driver and cannot guarantee 100 % safety. Do not rely completely on the parking sensor system and drive while confirming the safety of the surrounding area visually.
•  The following circumstances may obstruct the ultrasonic sensor resulting in an accident:
―  Ice, snow, or dirt is adhering to ultrasonic sensor
―  Ultrasonic sensor is covered by foreign matter (such as bumper stickers)
―  Shock is applied to bumper in accident and ultrasonic sensor installation angle is deviated
―  Ultrasonic sensor is exposed to heavy rain or water-spray from road
―  There is another device emitting ultrasonic waves (such as ultrasonic sensor of another vehicle) near ultrasonic sensor
•  The parking sensor system may not operate normally under the following conditions:
―  Ice, snow, or dirt is adhering to ultrasonic sensor
―  Ultrasonic sensor is frozen
―  Vehicle is in tilted position
―  Vehicle is parked on steep incline or there is difference in height between lines
―  Obstructions have approached too close to ultrasonic sensor
•  The ultrasonic sensor may not detect the following items:
―  Thin objects such as wire or rope
―  Items which absorb ultrasonic waves easily, such as cotton or snow
―  Angular-shaped objects
―  Tall objects protruding at the top
―  Short objects
―  Objects located immediately below bumper, such as wheel stoppers
•  The warning alert may activate while driving near parked vehicles/guardrails/walls on a narrow road, or while driving on a slope, gravel road, or grass field. This is a normal effect caused by the system's response to ultrasonic waves, and does not indicate a malfunction.

Function

•  The ultrasonic sensor located on the bumper detects an obstruction and the parking assist unit (ultrasonic) informs the driver of the distance between the vehicle and the obstruction using the parking sensor buzzer (notification and warning speaker) and the center display.

Ultrasonic sensor malfunction detection function

•  If the parking assist unit (ultrasonic) detects that there is a malfunction in the ultrasonic sensor circuit, the parking sensor buzzer is activated and flashes the parking sensor OFF switch indicator light in the following pattern.
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•  If a malfunction occurs, the parking assist unit (ultrasonic) displays a warning indication on the multi-information display in the instrument cluster and a guidance/detection indication on the center display as follows.

—: Not applicable

Malfunction description

Indication on multi-information display in instrument cluster*

Center display

Guidance*

Detection indication

Without 360°view monitor system

With 360°view monitor system

Ultrasonic sensor malfunction
Indication
Indication
Ultrasonic sensor dirty (without front ultrasonic sensor)
Indication
Indication
Ultrasonic sensor dirty (with front ultrasonic sensor)
Indication
Indication
Parking sensor system malfunction
Indication
Indication

*  :For details on the display content, refer to [MULTI-INFORMATION DISPLAY] and [PERSONALIZATION FEATURES] in the workshop manual. (See MULTI-INFORMATION DISPLAY [(E)].)


Volume adjustment function

•  The volume of the parking sensor buzzer can be adjusted. Refer to the [PERSONALIZATION FEATURES] in the workshop manual.


Detection indication setting change function

•  The detection indication on the center display can be switched between display/non-display. Refer to the [PERSONALIZATION FEATURES] in the workshop manual.


Structure/Construction


Structural view

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System wiring diagram

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Operation


Operation condition

•  When all of the following conditions are met, the parking sensor system operates.
―  Main power: ON (READY on)
―  Vehicle speed: less than 15 km/h {9.3 mph}
―  Parking sensor OFF switch: OFF


Obstruction detection area

•  Each ultrasonic sensor detects obstructions in the following areas.
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Detection indication pattern

•  The detection indication changes as follows according to the distance from the vehicle to the obstruction.

Detection indication pattern

Distance from obstruction

Front ultrasonic sensor

Rear ultrasonic sensor

Front:
•  Approx. 60—100 cm {24.0—39.3 in}
Rear:
•  Approx. 60—150 cm {24.0—59.0 in}
Front:
•  Approx. 45—60 cm {18—23 in}
Front corner:
•  Approx. 38—55 cm {15—21 in}
Rear:
•  Approx. 45—60 cm {18—23 in}
Rear corner/Rear side:
•  Approx. 38—55 cm {15—21 in}
Front:
•  Approx. 35—45 cm {14—17 in}
Front corner:
•  Approx. 25—38 cm {9.9—14.0 in}
Rear:
•  Approx. 35—45 cm {14—17 in}
Rear corner/Rear side:
•  Approx. 25—38 cm {9.9—14.0 in}
Front:
•  Within approx. 35 cm {14 in}
Front corner:
•  Within approx. 25 cm {9.8 in}
Rear:
•  Within approx. 35 cm {14 in}
Rear corner/Rear side:
•  Within approx. 25 cm {9.8 in}


Parking sensor buzzer sound pattern

•  The changes in the amount of time the parking sensor buzzer activates are as follows:

Ultrasonic sensor

Zone

Distance from obstruction

Parking sensor buzzer sound pattern

Front ultrasonic sensor
Short distance
Approx. 0—35 cm {0—13 in}
Intermediate distance*
Approx. 35—45 cm {14—17 in}
Long distance*
Approx. 45—60 cm {18—23 in}
Maximum long distance*
Approx. 60—100 cm {24.0—39.3 in}
Rear ultrasonic sensor
Short distance
Approx. 0—35 cm {0—13 in}
Intermediate distance*
Approx. 35—45 cm {14—17 in}
Long distance*
Approx. 45—60 cm {18—23 in}
Maximum long distance*
Approx. 60—150 cm {24.0—59.0 in}
Front corner ultrasonic sensor/Rear corner ultrasonic sensor/Rear side ultrasonic sensor
Short distance
Approx. 0—25 cm {0.0—9.8 in}
Intermediate distance*
Approx. 25—38 cm {9.9—14.0 in}
Long distance*
Approx. 38—55 cm {15—21 in}

*  :If an ultrasonic sensor continues to detect an obstruction in the same zone for 6 s or more, the parking sensor warning sound stops (detection indication remains displayed), and the warning sound resumes when the obstruction is detected in the short distance zone.