The above situations are normal conditions when the active eco system is activated to improve fuel efficiency.
Kia Cee'd JD Service Manual: Specifications
Specifications
SPAS unit
Power
IGN1
Operating voltage
9V ~ 16V
SPAS sensor (Front/Rear)
Number of sensors
4EA (Front), 4EA (Rear)
Operation voltage
...
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 ...