Kia Cee'd JD Service Manual: Repair procedures
Inspection
[System Inspection]
1.
Disconnect the vapor hose from the throttle body and connect a vacuum
pump to the nipple on the throttle body.
2.
Check the following points with applied vacuum using a vacuum pump.
...
Kia Cee'd JD Owners Manual: Non-operational conditions of
parking assist system
Parking assist system may not operate
normally when:
1. Moisture is frozen to the sensor. (It will
operate normally when moisture
melts.)
2. Sensor is covered with foreign matter,
such as snow or water, or the sensor
cover is blocked. (It will operate normally
when the material is remo ...