NHTSA recall 18V666000
Hybrid Propulsion System · Kia America, Inc.
Details
What's wrong: The main relay within the power relay assembly (pra) may have inadequate connections between its contacts, causing increased electrical resistance.
Why it matters: The increased electrical resistance can overheat the rear seat which is above the pra, increasing the risk of a fire.
The fix: Kia will notify owners, and dealers will inspect the power relay assembly (pra) for damage. If no damage is found, the main relay will be replaced. If damage is found, the pra will be replaced. These repairs will be performed free of charge. The recall began November 23, 2018.
Affected vehicles on MotorDeets
All model years NHTSA lists
2017 Kia Niro, 2018 Kia Niro.
Recalls can cover only some VINs. Check yours on NHTSA's official recall page for 18V666000.
Source: NHTSA recall records. Summary shortened; the official notice has the full text.