Collision Avoidance and Parking Assist Systems: Description and Operation

Parking and Back-up Sensor System Description

Parking and Back-up Sensor System (Touring model)

The parking and back-up sensor system has a sensor at each corner of the vehicle and two back-up sensors in the rear bumper. The sensors send out ultra-sonic sound waves, receive waves reflected by an obstacle, determines the distance, and uses the beeper and LEDs on the Multi-information display (MID) to tell the driver that an obstacle is near.

- The parking sensors work any time the shifter is out of park, until the vehicle reaches about 10 mph (16 km/h). They do not come back on until slowing down to about 5 mph (8 km/h) or less.
- The back-up sensors only activate in reverse, until the vehicle reaches 10 mph (16 km/h). They will not activate again until slowing back down to 5 mph (8 km/h).
- The parking and back-up sensor system is inactive with its main switch OFF.
- The parking sensor beeper (CBZ), back-up sensor beeper (BBZ) and LED's L1 through L5, activate for 1 second when the ignition switch is turned from LOCK (0) to ON (II) and the parking and back-up sensor main switch is ON.
- The parking sensor beeper (CBZ), back-up sensor beeper (BBZ) and LED's L1 through L5, activate for 1 second when the ignition switch is ON (II) and the parking and back-up sensor main switch is turned from OFF to ON.
- The parking and back-up sensors must be free of debris, snow, and ice to work correctly.
- A system check is performed each time:
- The ignition switch is turned to ON (II) with the parking and back-up sensor switch ON.
- The parking and back-up sensor switch is turned ON when the ignition switch is already ON.
- When shifted into reverse the first time.
- When shifted into reverse after 60 seconds has elapsed from the last system check.
- If a failure occurs, the MID displays "Check Parking Sensor System" and the CBZ/BBZ beeper(s) and LED activate the system check. This is signaled by two tones followed by two more tones, then the system returns to the normal state. The failed sensor will continue to be displayed and the MID will show "Warning Approaching Object", even when there is no object nearby.

Corner

- The sensor determines between about 1.6 ft (50 cm) to 1.3 ft (40 cm), 1.3 ft (40 cm) to 1 ft (30 cm) and 1 ft (30 cm) or less from the obstacle to activate the warning indicators accordingly.
- The LED (L1 to L4) and the corner beeper (CBZ) are used to alert the driver, and the ON/OFF time is varied as shown in the table below according to the sensed distance.
- If an obstacle is sensed by more than one sensor, the beeper sounds in synch with the LED indicator of the sensor that is closest to the obstacle.





Back-up

- The sensor determines between about 5.6 ft (170 cm) to 3.3 ft (100 cm), 3.3 ft (100 cm) to 2 ft (60 cm) and 2 ft (60 cm) or less from the obstacle to activate the indicators accordingly.
- The LED (L5) and the back-up beeper (BBZ) are used to alert the driver, and the ON/OFF time is varied as shown in the table below according to the sensed distance.
- If beeper sounds in synch with the LED indication.