The indicator illuminates when the front fog lights are ON.
Hyundai Tucson (LM) 2010-2015 Owners Manual: If the engine overheats
If your temperature gauge indicates overheating, you experience a loss of power,
or hear loud pinging or knocking, the engine may be overheating.
If this happens, you should:
1.Pull off the road and stop as soon as it is safe to do so.
2.Place the shift lever in P (Park) and set the parking bra ...
Hyundai Tucson (LM) 2010-2015 Service Manual: Rail Pressure Sensor (RPS) Description and Operation
Description
Rail Pressure Sensor (RPS) is installed on the delivery pipe
and measures the instantaneous fuel pressure in the delivery pipe. The
sensing element (Semiconductor element) built in the sensor converts the
pressure to voltage signal. By using this signal, the ECM can control
co ...