HYUNDAI SONATA HYBRID (2017) recall — Exterior Lighting
Hyundai recalls 2017 Sonata Hybrids with potential turn signal reversal causing crash risk. Owners receive free software update.
Use caution until it’s fixed
A turn signal that activates in the opposite direction of what was intended by the driver increases the risk of a crash.
Contact the company & request your remedy
What happened, in plain English
Hyundai is recalling 2017 Sonata Hybrids due to a turn signal that may activate in the opposite direction of the driver's intention, increasing crash risk. This defect requires a software update to fix. Read more at govinfonow.com/recall/1226007-hyundai-sonata-hybrid-2017-turn-signal-reversal-risk.
Source Summary by GovInfoNow · govinfonow.com/recall/1226007-hyundai-sonata-hybrid-2017-turn-signal-reversal-risk · Updated October 4, 2026 · Official notice: NHTSA #21V749000
Cite this page
“Hyundai Sonata Hybrid 2017: Turn Signal Reversal Risk.” GovInfoNow, updated October 4, 2026. https://govinfonow.com/recall/1226007-hyundai-sonata-hybrid-2017-turn-signal-reversal-risk. Based on NHTSA recall #21V749000 (https://www.nhtsa.gov/recalls?nhtsaId=21V749000).
Why it’s dangerous
The vehicle's Smart Junction Box software may misinterpret signals from the multifunction switch. This causes turn signals to activate in the opposite direction of what the driver intended, increasing crash risk.
Who’s affected
Owners of 2017 Hyundai Sonata Hybrids are affected. Drivers with this specific model are most at risk due to potential turn signal malfunction.
How to tell if you have this one
Check if your 2017 Sonata Hybrid has a recall notice. The recall covers specific 2015-2017 Sonata models with the Smart Junction Box software issue.
- Brand
Hyundai- Category
Vehicle
What to do — step by step
Contact Hyundai Customer Service
Call 1-855-371-9460 to confirm your vehicle is affected and schedule the software update.
Get Software Update
Dealers will provide a free software update to fix the Smart Junction Box issue.
What NHTSA says to do
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.
Questions people ask
Why is this recall happening?
The Smart Junction Box software may misinterpret signals from the multifunction switch, causing turn signals to activate in the opposite direction of what the driver intended.
How can I tell if my vehicle is affected?
Your vehicle is affected if it is a 2015-2017 Sonata or 2016-2017 Sonata Hybrid with the Smart Junction Box software issue.
Is there a deadline to fix this?
The recall notice states owners received letters in November 2021, but no specific deadline is mentioned for the software update.
Contact Hyundai
We’ve drafted a message you can send Hyundai to request your refund or repair — edit it as you like.
Subject: Recall 21V749000 — Hyundai Hyundai Hello, I own a Hyundai that is covered by recall 21V749000 from Hyundai. The official recall notice states: 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. I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this? Thank you.
Similar recalls
Keep exploring
From people who’ve dealt with this
Experiences, tips, and questions from readers. Every comment is reviewed before it appears.
No comments yet — be the first to share your experience.
Where this comes from
The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
- Official source: NHTSA Recall #21V749000 (September 24, 2021)
- Plain-language summary written by qwen3:4b on October 4, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
- GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.