The above situations are normal conditions when the active eco system is activated to improve fuel efficiency.
Active ECO operation
Limitation of Active ECO operationKia Cee'd JD Owners Manual: Rear parking assist system
The rear parking assist system assists
the driver during backward movement of
the vehicle by chiming if any object is
sensed within a distance of 120 cm (47
in.) behind the vehicle. This system is a
supplemental system and it is not intended
to nor does it replace the need for
extrem ...
Kia Cee'd JD Service Manual: Troubleshooting
Troubleshooting
Symptom
Suspect area
Remedy
Engine misfire with abnormal internal lower engine noises.
Loose or improperly installed engine flywheel.
Repair or replace the flywheel as required.
...