Service bulletins for the 2018 Kia Niro
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
100 on file from NHTSA, as of 2026-10-19.
About U0456 on the 2018 Kia Niro: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
By topic
Only bulletins with trouble code: U0456 are shown. Show all
| PS647 | 2020-03-05. Service bulletin. ENGINE AND ENGINE COOLING. PITSTOP: ENGINE ELECTRIC WATER PUMP (EWP) CONNECTOR AND PIGTAIL ISSUES FOR DTC U045600 - This Pitstop provides information regarding DTC U045600 on some 2017-2020MY Niro (P/HEV) vehicles, which may set due to the EWP and/or harness connectors (C102) being contaminated with coolant. In the event that this DTC is set, throughly inspect the EWP and harness connectors which are located behind the Engine Coolant Temperature Sensor (ECTS) and are sometimes difficult to see. |
|---|
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.