Service bulletins for the 2017 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.
89 on file from NHTSA, as of 2026-10-19.
About P1B77 on the 2017 Kia Niro: what the code means, and the bulletins and recalls about the same components.
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Only bulletins with trouble code: P1B77 are shown. Show all
| PS553-R1 | 2018-06-18. Service bulletin. ELECTRICAL SYSTEM. PITSTOP - HEV WARNING LIGHT AND DTC P1B25/P1B77 - This bulletin has been revised to include additional information. When addressing a concern related to the Niro HV warning light ON, and KDS detects a primary DTC P1B25 (HV Path Fault) and secondary DTC P1B77 (HV Pre-Charge Fault), then the 125 Amp High Voltage Battery Fuse should be inspected for an intermittent and/or an open condition.. |
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| PS553 | 2018-05-14. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. PITSTOP - HEV WARNING LIGHT AND DTC P1B25/P1B77 - When addressing a concern related to the Niro HV warning light ON, and KDS detects a primary DTC P1B25 (HV Path Fault) and secondary DTC P1B77 (HV Pre-Charge Fault), then the 125 Amp High Voltage Battery Fuse should be inspected for an intermittent and/or an open condition. |
| PS491 | 2017-08-02. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. PITSTOP: Voltage Protection Device (VPD) DTCs P1BA7 and P1B77 - The Voltage Protection Device (VPD) (1) is mounted on top of the HV battery pack. If the HV battery overcharges, the battery cells/modules/case can swell. If swelling occurs, the VPD switch will turn ON, and the Battery Management System (BMS) will receive the VPD ?ON? signal and turn off the Power Relay Assembly (PRA) to prevent damage. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.