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: A/C Pressure Transducer Repair procedures
Inspection
1.
Measure the pressure of high pressure line by measuring voltage output
between terminal “1” and “2”.
2.
Inspect the voltage value whether it is sufficient to be regular value
or not.
...
Kia Cee'd JD Owners Manual: Hazardous driving conditions
When hazardous driving conditions are
encountered such as water, snow, ice,
mud, sand, or similar hazards, follow
these suggestions:
Drive cautiously and allow extra distance
for braking.
Avoid sudden braking or steering.
When braking with non-ABS brakes
pump the brake pedal with ...