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Hyundai Sonata Recall 21V749: Turn Signal May Blink the Wrong Way, Raising Crash Risk

NHTSA campaign 21V749, reported September 24, 2021, 469,377 vehicles potentially affected.

What this recall means for you

Certain vehicles have a software logic problem in the Smart Junction Box that may not correctly read signals from the multifunction switch. As a result, the turn signal can activate in the opposite direction from the one the driver intended.

A turn signal pointing the wrong way can mislead other drivers about your plans, which increases the risk of a crash. Owners should be aware of this issue, especially if they notice their turn signals behaving unexpectedly.

The repair is free. Dealers will update the Smart Junction Box software at no charge. Owner notification letters were mailed November 19, 2021. For questions, contact Hyundai customer service at 1-855-371-9460 (Hyundai recall number 210), and check your vehicle identification number (VIN) for any open recalls.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 21V749Hyundai Motor America
Component
ELECTRICAL SYSTEM:SOFTWARE; EXTERIOR LIGHTING:TURN SIGNAL
Problem
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.
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.nhtsa.gov.

Affected vehicles

Hyundai Sonata201520162017
Hyundai Sonata Hybrid20162017
Hyundai Sonata Plug-IN Hybrid20162017