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Hyundai Kona Electric and Nexo may lose braking power

NHTSA campaign 20V748000 · Reported 2020-12-01 · Hyundai Motor America

high How serious is it? About this label

Serious, because weaker brakes mean a longer stopping distance; the notice does not tell owners to stop driving, but this repair should not be put off.

What's wrong, in plain English

The electronic brake system can misread a sensor signal and cut back how much stopping power the brakes provide. If that happens, the car takes longer to stop than the driver expects, which can lead to a crash. This affects certain 2019-2020 Nexo fuel cell cars and 2019-2021 Kona Electric cars. A dealer updates the brake system software free of charge, and the repair has been available since January 2021.

What you should do

1. Check your VIN at nhtsa.gov/recalls to see if your car is included. 2. Contact your Hyundai dealer or Hyundai customer service at 1-855-371-9460 and mention recall 199. 3. Have the dealer install the updated brake software, which is free of charge.

Affected vehicles (4)

Who to contact

Hyundai — official Hyundai recall lookup

Customer service: 1-855-371-9460

Any franchised dealer for the brand can do the repair. Phone numbers are taken from manufacturer sites and recent NHTSA notices; if one has changed, the number in your own recall letter is the one to use.

The bigger picture

Official notice

Component
SERVICE BRAKES, HYDRAULIC:POWER ASSIST:ELECTRIC:CONTROL MODULE:SOFTWARE
Summary
Hyundai Motor America (Hyundai) is recalling certain 2019-2020 Nexo Fuel Cell and 2019-2021 Kona Electric vehicles. The Integrated Electronic Brake (IEB) system may detect an abnormal sensor signal and as a result, may significantly reduce braking performance.
Safety risk
Reduced braking power could lengthen the distance required to stop the vehicle, increasing the risk of a crash.
Remedy
Hyundai will notify owners, and dealers will update the IEB software, free of charge. The recall began January 25, 2021. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 199.

Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.