High speed travel consumes more fuel than urban motoring. Do not forget to check both engine coolant and engine oil.
Kia Niro 2017 (DE HEV) Service Manual: Intake Air Temperature Sensor (IATS) Repair procedures
Inspection
1.
Switch "OFF" the ignition.
2.
Disconnect the IATS connector.
3.
Measure resistance between the IATS terminals 3 and 4.
4.
Check that the resistance is within the specific ...
Kia Niro (DE HEV) Owners Manual: Horn
To sound the horn, press the area indicated by the horn symbol on your steering
wheel (see illustration). The horn will operate only when this area is pressed.
Check the horn regularly to be sure it operates properly.
CAUTION
Do not strike the horn severely to operate it, or hit it with y ...