2021 HYUNDAI IONIQ PLUG-IN HYBRID

SERVICE BRAKES

Auto Hold/EPB lights come one while driving. Deactivates cruise control of on. Turns off auto hold. Ongoing issue with many reports but no recall or dealership knowledge. Ongoing issue since purchase.

ELECTRICAL SYSTEM

Auto Hold/EPB lights come one while driving. Deactivates cruise control of on. Turns off auto hold. Ongoing issue with many reports but no recall or dealership knowledge. Ongoing issue since purchase.

UNKNOWN OR OTHER

The "Auto Hold" feature on my Hyundai Ioniq malfunctioned, displaying a dashboard warning: "AUTO HOLD conditions not met. Press brake pedal." This message randomly appears while driving or stopping, and it deactivates the Auto Hold and Electronic Parking Brake (EPB) functions. In some cases, the car rolls after stopping because the system fails to hold the vehicle. This issue compromises vehicle safety, especially on inclines or during stop-and-go traffic. It puts me, passengers, and other drivers at risk. The problem has occurred multiple times and is unpredictable. It appears to be linked to a faulty brake switch or sensor, as noted in Hyundai’s TSB 23-BR-001H. I discovered this issue is affecting many other Hyundai Ioniq owners, as seen in this discussion: [XXX] The dealer has not yet inspected the vehicle, but the symptoms match the TSB. No accident has occurred, but the safety risk is serious due to brake failure behavior. There were no visible warning lights before the issue started, just the "Auto Hold" message when the failure happens. I bought the car from a used car dealer when it had 39,000 miles. Now it has around 74,000 miles. I’m not sure if it’s still under warranty. I haven’t taken it to the dealer yet, but the symptoms match exactly what other people are reporting online. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

The "Auto Hold" feature on my Hyundai Ioniq malfunctioned, displaying a dashboard warning: "AUTO HOLD conditions not met. Press brake pedal." This message randomly appears while driving or stopping, and it deactivates the Auto Hold and Electronic Parking Brake (EPB) functions. In some cases, the car rolls after stopping because the system fails to hold the vehicle. This issue compromises vehicle safety, especially on inclines or during stop-and-go traffic. It puts me, passengers, and other drivers at risk. The problem has occurred multiple times and is unpredictable. It appears to be linked to a faulty brake switch or sensor, as noted in Hyundai’s TSB 23-BR-001H. I discovered this issue is affecting many other Hyundai Ioniq owners, as seen in this discussion: [XXX] The dealer has not yet inspected the vehicle, but the symptoms match the TSB. No accident has occurred, but the safety risk is serious due to brake failure behavior. There were no visible warning lights before the issue started, just the "Auto Hold" message when the failure happens. I bought the car from a used car dealer when it had 39,000 miles. Now it has around 74,000 miles. I’m not sure if it’s still under warranty. I haven’t taken it to the dealer yet, but the symptoms match exactly what other people are reporting online. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)