If any method other than the button was used to cancel cruising speed and the system is still activated, the most recent set speed will automatically resume when the +RES switch is pushed.
It will not resume, however, if the vehicle speed has dropped below approximately 30 km/h (20 mph).
Kia Cee'd JD Service Manual: ETC (Electronic Throttle Control) System Troubleshooting
Fail-Safe Mode
Item
Fail-Safe
ETC Motor
Throttle valve stuck at 7°
TPS
TPS 1 fault
ECM looks at TPS2
TPS 2 fault
ECM looks at TPS1
TP ...
Kia Cee'd JD Service Manual: Floor Console Assembly Repair procedures
Replacement
[M/T]
•
When prying with a flat-tip screwdriver, wrap it with protective
tape, and apply protective tape around the related parts, to
prevent damage.
...