NHTSA Recall 18V704000: Inverter (hybrid propulsion system)
Hyundai Motor America reported this safety recall to NHTSA on , covering an estimated 10,575 vehicles. It affects 2017–2018 Hyundai Ioniq Hybrid.
| NHTSA campaign | 18V704000 |
|---|---|
| Manufacturer campaign | 178 |
| Component | HYBRID PROPULSION SYSTEM › INVERTER |
| Report received | October 5, 2018 |
| Owner notification | February 28, 2019 |
| Initiated by | Manufacturer |
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.
Safety risk
The increased electrical resistance can overheat the rear seat which is above the PRA, increasing the risk of a fire.
Remedy
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.
Notes
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.
Vehicles covered by recall 18V704000
Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.