Kia Cee'd: Driving your vehicle / Brake system

Limitation of Active ECO operation

If the following conditions occur while Active ECO is operating, the system operation is limited even though there is no change in the ECO indicator. When the coolant temperature is low: ...

Power brakes

Your vehicle has power-assisted brakes that adjust automatically through normal usage. In the event that the power-assisted brakes lose power because of a stalled engine or some other reason, ...

Other information:

Kia Cee'd JD Service Manual: Engine Coolant Temperature Sensor (ECTS) Specifications
Specification   Temperature Resistance (kΩ) °C °F -40 -40 48.14 -20 -4 14.13 ~ 16.83 0 32 5.79 ...

Kia Cee'd JD Owners Manual: Glow indicator (Diesel engine)
The indicator light illuminates when the ignition switch is placed at the ON position. The engine can be started after the preheat indicator light goes off. The illuminating time varies with the water temperature, air temperature and battery condition. ✽ NOTICE If the engine does n ...