2017 Hyundai Sonata Plug-In Hybrid electrical system problems

What owners report

• “On 12/20/25, the car - a Sonata plug-in hybrid - failed to start. When I pushed the "start" button, the dashboard display lit up w many clearly irrelevant error messages. Each time I pressed start, somewhat fewer error messages blasted toward me, and finally, no response at all. On 12/21/2026, the…”

  filed May 11, 2026

• “While driving at a high rate of speed propulsion to the vehicle suddenly and without warning ceased, the electric and internal combustion engine were non-responsive (ICE stopped; hybrid motor didn't provide propulsion), the warning light said "Check Hybrid System. Turn off engine" I was put at risk…”

  filed Mar 17, 2025

Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.

Related recalls

• Smart Junction Box (SJB) software logic may not properly interpret the signals received…
  Campaign 21V749000 · Sep 24, 2021

Related service bulletins

• Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon’s communication network. Follow the procedure…

  25-01-024H-1 TSB · Service Campaign · issued May 8, 2025

• This bulletin provides instructions to update the 4th generation AVN head unit software to ensure the SIM Over The Air function for the Bluelink service is operating properly.

  24-01-050H-1 · Service Campaign · issued Sep 11, 2024

• This bulletin provides instructions to update the 4th generation AVN head unit software to ensure the SIM Over The Air function for the Bluelink service is operating properly.

  24-01-050H · Service Bulletin/Repair Instructions · issued Jun 29, 2024

Electrical System problems in other Sonata Plug-In Hybrid years

Other reported problem areas on the 2017 Hyundai Sonata Plug-In Hybrid