This warning light illuminates:
CAUTION - Malfunction Indicator Lamp (MIL)
Driving with the Malfunction Indicator Lamp (MIL) on may cause damage to the emission control systems which could affect drivability and/or fuel economy.
CAUTION - Gasoline Engine
If the Malfunction Indicator Lamp (MIL) illuminates, potential catalytic converter damage is possible which could result in loss of engine power. In this case, we recommend that you have the vehicle inspected by an authorized Kia dealer as soon as possible.
Kia Niro 2017 (DE HEV) Service Manual: Inhibitor Switch Description and operation
Description
•
The inhibitor switch is installed on top of transmission, and is connected
to the shift lever through shift cable.
•
Inhibitor switch signals (S1, S2, S3, S4) are transmitted to the TCM
according to the driver's shif ...
Kia Niro (DE HEV) Owners Manual: Use high quality ethylene glycol coolant
Your vehicle is delivered with high quality ethylene glycol coolant in the cooling
system. It is the only type of coolant that should be used because it helps prevent
corrosion in the cooling system, lubricates the water pump and prevents freezing.
Be sure to replace or replenish your coolant ...