Parking and Back-Up Sensor System Description (2019, 2020, 2021)
Overview
The parking and back-up sensor system measures distances to objects by transmitting ultrasonic waves and receiving the echo from sound waves bouncing off nearby objects. It informs drivers of nearby objects with audible warning signals as well as visual signs through the multi-information display (MID) in the gauge control module.
Basic Control/Function
The sensors send out ultrasonic waves, receive waves reflected by an obstacle, determine the distance, and use the buzzer and multi-information display (MID) to tell the driver that an obstacle is near.
- The front sensors work any time the shift lever is shifted out of P position/mode, until the vehicle reaches about 9 mph (15 km/h). They do not come back on until slowing down to about 5 mph (8 km/h) or less.
- The rear corner and rear center sensors are only activated in the R position/mode.
- The parking and back-up sensor system is active when its switch is ON.
- The sensors must be free of debris, snow, and ice to work correctly.
Sounding Pattern
The alarm sounding pattern and display of the obstacle detection location are performed by the obstacle detection indication requests and alarm sounding requests from the parking and back up sensor control unit. As shown in the following table, the time of sounding the buzzer is changed depending on the detection distance. A warning message is generated in case of a failure of the parking sensor system.
Front
Rear