2015 Hyundai Sonata electrical system problems

Related recalls

• Recall 21V749000Sep 24, 2021469,377 vehicles
  ELECTRICAL SYSTEM:SOFTWARE · EXTERIOR LIGHTING:TURN SIGNAL

  Hyundai Motor America (Hyundai) is recalling certain 2015-2017 Sonata, 2016-2017 Sonata Hybrid, and Sonata Plug-In Hybrid vehicles. The Smart Junction Box (SJB) software logic may not properly interpret the signals received from the multifunction switch, which could cause the turn signal to activate in the opposite direction of what the driver intended.

  Risk: A turn signal that activates in the opposite direction of what was intended by the driver increases the risk of a crash.

  Remedy: Dealers will update the SJB software, free of charge. Owner notification letters were mailed November 19, 2021. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 210.

• Recall 15V678000Oct 20, 201564,744 vehicles
  ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

  Hyundai Motor America (Hyundai) is recalling certain model year 2015-2016 Sonata vehicles manufactured May 28, 2014, to August 21, 2015. The affected vehicles are equipped with an Antilock Braking System (ABS) warning light intended to warn the driver if there is an ABS malfunction. In the event of an ABS malfunction, the Brake System warning light will illuminate, but the ABS warning light will not illuminate. Since the vehicles have ABS malfunction lights that do not illuminate, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 135, "Light Vehicle Brake Systems."

  Risk: If the driver is alerted there is a brake system malfunction, but not specifically with the ABS system, the driver may operate the vehicle unaware that the vehicle's brakes may lock up during hard braking, increasing the risk of a crash.

  Remedy: Hyundai will notify owners, and dealers will update the ABS control unit software, free of charge. The recall is expected began on November 30, 2015. Owners may contact Hyundai customer service at 1-855-671-3059. Hyundai's number for this recall is 134.

• Recall 14V325000Jun 12, 20142,138 vehiclesDo not drive
  ELECTRICAL SYSTEM:WIRING · STEERING

  Hyundai Motor Company (Hyundai) is recalling certain model year 2015 Sonata vehicles manufactured May 2, 2014, through May 23, 2014. A poor connection within the vehicle's wiring harness may result in a reduction of steering assist from the vehicle's motor driven power steering system or the inability to move the vehicle's shifter from the Park position.

  Risk: The reduction of power steering assist can increase the steering effort needed, increasing the risk of a crash.

  Remedy: Hyundai notified dealers to suspend sales of affected Sonata vehicles and has published recall bulletin 14-01-024 providing a service procedure to repair the affected vehicles. On June 7, 2014 Hyundai began to contact the affected retail customers. Owners may contact Hyundai customer service at 1-800-633-5151. Hyundai's number for this recall is 119.

What owners say

1. Filed Aug 6, 2026MAElectrical SystemFuel, Hybrid & EV PropulsionOther / Unknown

   1.) Following Hyundai's 9C2 Campaign update for the ECU that was completed back on May 27th, 2026, my 2015 Sonata went into limp mode [solid check engine light present] while I was accelerating up an on-ramp on the 2nd drive cycle since the update was performed. I was already far away from the dealership so I was forced to limp it to my local shop that I regularly use to have it checked out. It was confirmed that the code on the vehicle was P200A for intake manifold runners.…

   NHTSA complaint #11755317 · source
2. Filed Jul 16, 2026FLElectrical System

   This vehicle had a recall, 201, for the smart junction box. This was due to the blinkers not working properly. The software update was performed, however, the problem still exists. This was due to the smart junction box. Now, aside from the blinker issue, the ac stays on when the engine is turned off, lights come on by themselves, the media screen goes randomly into night mode, daylight running lights are constantly in night mode, smart junction box failure. I have not taken…

   NHTSA complaint #11750940 · source
3. Filed Mar 10, 2026223,718 miMIElectrical System

   Odometer Fraud. The contact purchased a 2015 Hyundai Sonata. The vehicle was a private sale. The vehicle was purchased on March 1, 2026. The mileage at the time of the purchase was 41,486. The vehicle was taken to the dealer, where the contact was informed that the odometer mileage was last reported at 223,718. The seller was not made aware of the discrepancy.

   NHTSA complaint #11723405 · source
4. Filed Mar 4, 2026CTFireElectrical SystemEngine

   I was driving on the highway and the engine shut off but everything else remained on. I drifted to the breakdown lane and turned the car off. It would not start again and the car began acting up by turning lights on and off, telling me to check the tire pressure, and not unlocking the doors. I then saw some very light smoke from the engine compartment. I popped the hood and looked and saw a glow on the bottom side of the engine area. Then the car just went up in flames.

   NHTSA complaint #11721923 · source
5. Filed Jan 19, 2026MS1 injuredBrakesElectrical SystemEngine

   My 2015 Sonata will stall out dropping speeds to 12-24 when i slightly merge, when I turn ect. Then it won’t accelerate for what seems like 10 minutes realistically 2 minutes maybe 3 Then will slowly regain speed. I’ve almost wrecked twice Share care with daughter and she’s been victim to it way way more. This is scary and Hyundai won’t stay behind their product Local dealership won’t fix recalls so we have to go over 120 miles for repairs. The recall isn’t even for…

   NHTSA complaint #11711848 · source
6. Filed Dec 16, 2025GAElectrical SystemEngineWheels & Tires

   i've had my 2015 hyundai sonata now for A year. i took it to the hyundai place to have recalls on the security fixed. and told them about the valve cover gasket leaking. they said they fixed it. however every since i took it to the dealership i have had nothing but problems. my car makes a rattling noise when i accelerate, i smell a strong gas smell occasionally at random times but always while driving. my driver brake light has never worked, my driver headlight keeps…

   NHTSA complaint #11705239 · source
7. Filed Dec 2, 2025FLDriver Assistance & Safety TechElectrical System

   My 2015 Hyundai Sonata has a defective engine. The motor failed unexpectedly even though the car has low usage and has always been maintained properly. I was informed that many Hyundai engines from these years came with manufacturing issues, and mine appears to be one of them.

   NHTSA complaint #11702481 · source
8. Filed Nov 27, 2025ILFireElectrical SystemEngine

   While I was driving at approximately 55mph, a loud clank happened and the car stalled, and smoke started pouring out of the hood and through the vents into the cabin, and I was leaving burning pieces behind on the road. I pulled over, ran to the back to get my dogs out of their crash tested kennels in the backseat, and both rear doors & passenger front door were locked. I ran up front to unlock them, and the unlock button did not work. I tried the unlock on the keys and it…

   NHTSA complaint #11701800 · source
9. Filed Sep 22, 2025GAElectrical SystemEngineAcceleration & Cruise Control

   The engine light started to come on and go off and when I got the codes ran, it said something along the line of misfire. I had the spark plugs changed and I kept regular maintenance done on oil changes and tune ups. Now my engine is knocking and the vehicle is in limp mode.

   NHTSA complaint #11688793 · source
10. Filed Sep 20, 2025FLBrakesElectrical SystemLighting

    The rubber stopper for the brake light switch on the brake pedal deteriorated and fell apart. This resulted in the brake lights remaining on constantly, cruise control being disabled, and low battery voltage.

    NHTSA complaint #11688660 · source
11. Filed Aug 11, 2025FLFireElectrical SystemOther / Unknown

    On [XXX], my 2015 Hyundai Sonata experienced a sudden and complete loss of power while driving at highway speed on [XXX] in Sarasota, FL. There were no warning lights, error messages, or abnormal performance indicators prior to the failure. Within minutes of losing power, smoke began to enter the cabin, followed by visible flames from the engine compartment. I pulled over, exited the vehicle, and called 911. The fire fully engulfed the vehicle and destroyed personal property…

    NHTSA complaint #11679864 · source
12. Filed Aug 11, 2025ALElectrical SystemEngineOther / Unknown

    I have contacted the guy that sold me the car he Refused to fix the recall which is my motor I need Something done , Hyundai won’t Honor their Recall .

    NHTSA complaint #11679743 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology