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: Rail Pressure Sensor (RPS) Repair procedures
Inspection
1.
Connect the KDS/GDS on the Data Link Connector (DLC).
2.
Measure the output voltage of the RPS during idle at various engine speeds.
Pressure
Output Voltage (V) [Vref=5V]
...
Kia Niro (DE HEV) Owners Manual: Weight of the trailer
What is the maximum safe weight of a trailer? It should never weigh more than
the maximum trailer weight with trailer brakes. But even that can be too heavy.
It depends on how you plan to use your trailer. For example, speed, altitude,
road grades, outside temperature and how often your vehic ...