Check the condition and connections of all cooling system hoses and heater hoses. Replace any swollen or deteriorated hoses.
The coolant level should be filled between MAX and MIN marks on the side of the coolant reservoir when the engine is cool.
If the coolant level is low, add enough specified coolant to provide protection against freezing and corrosion. Bring the level to MAX, but do not overfill. If frequent additions are required, we recommend that the system be inspected by an authorized Kia dealer.
Kia Niro 2017 (DE HEV) Service Manual: Hybrid Starter Generator(HSG) Components and components location
Components
1. Hybrid starter generator (HSG)
2. HSG bracket
...
Kia Niro 2017 (DE HEV) Service Manual: Active Air Flap (AAF) Troubleshooting
Troubleshooting
Symptoms
Possible Causes
Remedy
Warning illuminated
"Check active air flap system"
Active Air Flap System Fail
(Flap stuck)
• Inspect the flap and remove the foreign substa ...