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 Service Manual: Rear Door Module Repair procedures
Replacement
1.
Remove the rear door window glass.
(Refer to Rear Door - "Rear Door Window Glass")
2.
Remove the rear door outside handle.
(Refer to Rear Door - "Rear Door Outside Handle")
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Kia Cee'd JD Service Manual: Components and components location
Components
1. Steering
column shaft
2. ECU
3. Motor
4. Steering gear box
...