2017–2018 Hyundai IONIQ Hybrid Recall: Main Relay within the Power Relay Assembly (PRA) may have inadequate…
NHTSA campaign 18V704000 · Hybrid Propulsion System · filed Oct 5, 2018 · verified Jul 30, 2026
The defect
Hyundai Motor America (Hyundai) is recalling certain 2017-2018 Hyundai Ioniq Hybrid and 2018 Ioniq Plug-In Hybrid vehicles. The Main Relay within the Power Relay Assembly (PRA) may have inadequate connections between its contacts, causing increased electrical resistance.
The risk
The increased electrical resistance can overheat the rear seat which is above the PRA, increasing the risk of a fire.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Hyundai 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 February 28, 2019. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 178.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Affected vehicles
| Make | Model | Model years |
|---|---|---|
| Hyundai | IONIQ Hybrid | 2017, 2018 |
Related recalls
More Hyundai IONIQ Hybrid recalls
Other campaigns involving Hyundai vehicles
Source: NHTSA recall database, campaign 18V704000 (manufacturer number 178). Data last verified Jul 30, 2026.