Reduce speed and shift to a lower gear before you start down a long or steep downgrade. If you don’t shift down, you might have to use your brakes so much that they would get hot and no longer operate efficiently.
On a long uphill grade, shift down and reduce your speed to around 70 km/h (45 mph) to reduce the possibility of engine and transaxle overheating.
If your trailer weighs more than the maximum trailer weight without trailer brakes and you have a dual clutch transmission, you should drive in D (Drive) when towing a trailer.
Operating your vehicle in D (Drive) when towing a trailer will minimize heat build up and extend the life of your transaxle.
CAUTION
Kia Niro 2017 (DE HEV) Service Manual: Brake Actuation Unit Repair procedures
Removal
1.
Turn ignition switch OFF and disconnect the negative (-) battery terminal.
2.
Disconnect the TCM connector.
(Refer to DCT (Dual Clutch Transmission) System - "DCT Control Module
(TCM))
3.
Disco ...
Kia Niro 2017 (DE HEV) Service Manual: Center Fascia Panel Components and components location
Component Location
1. Center fascia panel assembly
2. Center fascia lower panel assembly
...