2023 Hyundai Santa Fe

First Failure occurred 7 months after purchase at 5,270 miles on August 1, 2024. The vehicle suddenly went into "Limp Mode" abruptly decelerating to 25 mph with a non-responsive gas pedal. A code reader displayed PO653 Sensor Reference: "Voltage B Circuit High". Dealer found corroded wire to battery and cleaned it. Second Failure: Horn loss to 1 tone. Fixed at 30K mile dealer service on June 12, 2026 and found to have faulty packing resulting in corrosion. At the same standard service the Brake System was flushed. 3rd Failure was 5 days and 437 miles (30,712 miles) after the 30K dealer service. On June 17, 2026 during my early morning commute while merging onto the interstate, alarms began to blare and the gas pedal suddenly became unresponsive. The initial alarms read Blind Spot Failure. Car would not accelerate from 40 mph that it was going coming down the bridge ramp so I took the very close off ramp down from the aqua duct and the console display alert showed "Engine Management System: details: Braking and Body Control System with a recommendation to get "a full system check...TODAY". I brought it to the dealer that afternoon and as of yesterday, 6/26/26 they can find nothing wrong, declaring it an intermittent issue and asked me to come get the car, refusing to continue looking or providing alternate options other than referring me to Hyundai Consumer Affairs.

Currently have 518 Diagnostic History Codes (DTC)in memory. Additionally, I have 3 Active DTC’s. The codes are: DTC C160C87 DTC System CHASSIS DTC Sub System LKAS, and DTC C160C87 DTC System CHASSIS DTC Sub System SCC, and DTC C163881 DTC system CHASSIS DTC Sub System SCC FIRST OCCURRENCE: during actual assembly in Montgomery, AL plant. I have asked three Hyundai Service dealers for help. All have tried. Noting noted that contributes to the issues above. At first, my dealer replaced the front camera. Was told it was a heating issue. I have contacted Hyundai BLUELINK service for help. An information report was filed, TWICE. The first report I received feedback that Hyundai’s engineers had corrected the issue. On the following day, the codes returned. A second concern was filed with Hyundai BLUELINK. Hyundai Motor America Case#: [XXX] to wit: “Thank you for contacting Hyundai Motor America. We are in receipt of your e-mail and one of our representatives will get back to you shortly. Sincerely, Hyundai Motor America” Is my vehicle going to fail and cause me injury while operating it on an Interstate highway? This is quite concerning as I drive my car. All I want from Hyundai is to get this issue repaired. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I've been driving in Arizona on southbound [XXX] just south of [XXX] and noticed an issue that is very odd. I have a 2023 Hyundai Santa Fe that has Highway Driving Assist that does both speed control and distance from the vehicle ahead of me and Lane Keeping Assist. After I pass [XXX], but before an overpass for [XXX], my vehicle, if those systems are on, goes haywire and all those safety systems turn off. I have experienced it on at least 3 of the lanes on that stretch. It happens both early in the am and later regardless of sun. It doesn't happen on northbound. As more cars have these features, this interference should be looked in to. I have not experienced this on any other of our highways. Here's a link to the the rough location. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

when driving in the rain, the driver side (left) blind spot is not functional. When the right turn signal is used, the camera shows the right side of the car and the triangle on the right mirror lights up if there is vehicle in the blind spot. In the rain, the camera lens is as clear as when it is not raining. when the left turn signal is used, due to poor aerodynamics, there is a large drop of water on camera lens which prevents driver from seeing the blind spot on the left side. The large drop of water is displayed on the dash instead of the left side of the vehicle.