The tongue load of any trailer is an important weight to measure because it affects the total gross vehicle weight (GVW) of your vehicle. This weight includes the curb weight of the vehicle, any cargo you may carry in it, and the people who will be riding in the vehicle. And if you will tow a trailer, you must add the tongue load to the GVW because your vehicle will also be carrying that weight.
The trailer tongue should weigh a maximum of 10% of the total loaded trailer weight, within the limits of the maximum permissible trailer tongue load. After you've loaded your trailer, weigh the trailer and then the tongue, separately, to see if the weights are proper. If they aren’t, you may be able to correct them simply by moving some items around in the trailer.
WARNING - Trailer
✽ NOTICE
With increasing altitude the engine performance decreases. From 1,000m above sea level and for every 1,000m thereafter 10% of vehicle/trailer weight (trailer weighter + gross vehicle weight) must be deducted.
Kia Niro (DE HEV) Owners Manual: Explanation of scheduled maintenance items
Engine oil and filter
The engine oil and filter should be changed at the intervals specified in the
maintenance schedule. If the vehicle is being driven in severe conditions, more
frequent oil and filter changes are required.
HSG (Hybrid starter & generator) belt
The HSG belt should be ch ...
Kia Niro 2017 (DE HEV) Service Manual: Components and positions
Components
1. Smart key unit
2. Body control module (BCM)
3. Wireless power charging unit
4. Instrument cluster
...