2017 Hyundai Sonata Electrical System Problems
The 2017 Hyundai Sonata has 83 electrical system complaints filed with NHTSA, 11% of its 764 total complaints for the year. The median mileage at failure was 24,598, and a related recall (21V749000) addresses Smart Junction Box software issues.
- Electrical System complaints
- 83
- 11% of 764
- Crashes reported
- 4
- Fires reported
- 0
- Injuries reported
- 2
- Median mileage
- 24,598 mi
- Related recalls
- 1
Typical electrical symptoms owners report
- Owners report inadequate low-beam headlight illumination at highway speeds, making it hard to see the road even at low speeds.
- Some describe a distracting shadow cast by the headlight housing onto the road surface that impairs visibility while driving.
- Several report the automatic emergency braking or forward-collision warning system failing to alert or engage when approaching stopped vehicles.
- One owner reported the instrument panel going dark along with a failed following-distance alert system.
- Another described the Blue Link remote system starting the vehicle unexpectedly while parked and unattended in a garage.
- Airbag non-deployment during crashes was reported by multiple owners, in some cases linked to prior electrical relay replacements.
When 2017 Hyundai Sonata electrical complaints were filed
First complaint Jan 17, 2017, latest Jul 25, 2026.
Electrical System recalls for the 2017 Hyundai Sonata
- NHTSA 21V749000Sep 24, 2021Electrical System469,377 vehicles
Electrical system:software
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.
Electrical System complaints by Sonata model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- How many electrical system complaints does NHTSA have for the 2017 Hyundai Sonata?
- NHTSA lists 83 electrical system complaints for the 2017 Sonata, which is 11% of the 764 total complaints filed for that model year.
- Is there a recall for the 2017 Hyundai Sonata's electrical system?
- Yes. Recall campaign 21V749000, reported in September 2021, covers a Smart Junction Box software issue on 2015-2017 Sonata and 2016-2017 Sonata Hybrid and Plug-In Hybrid vehicles. Dealers update the SJB software free of charge.
- At what mileage do 2017 Sonata electrical problems typically show up?
- NHTSA data shows a median mileage at failure of 24,598 for electrical system complaints on the 2017 Sonata.
- Do 2017 Sonata electrical complaints involve crashes or injuries?
- Yes, NHTSA records 4 crashes and 2 injuries connected to electrical system complaints for the 2017 Sonata, with no reported fires.
- What specific electrical issues do owners report most on the 2017 Sonata?
- Owners most often describe inadequate headlight brightness, a distracting shadow from the headlight housing, and failures of the automatic emergency braking and forward-collision alert systems.