2024 Hyundai Santa Fe Hybrid electrical problems

Filed Oct 16, 2026 · Electrical · NC

On September 28, 2026 our 2024 Hyundai Santa Fe would not accelerate while in the drive, while driving. My husband tried to accelerate and while pushing the gas pedal, it would not accelerate. On the screen it told him to pull over, and charge hybrid battery. He pulled off, let the car charge, and all indicators seemed find to drive again. Upon starting to drive again after 10mins of letting it sit and charge, and driving 15mins, the car again would not accelerate, and gave indicators to charge the battery. The vehicle was towed to the nearest Hyundai dealership. At this dealership, they replaced the Throttle Body System (TPS) and 12-v battery which they indicated was drained. Upon asking about the hybrid battery, we were told that those tests or indicators did not flag while running the assessments on our vehicle. Our car was out of service until 10/8. We received the car with a new TPS and brand new 12-v battery. The vehicle was driving, starting, and charging fine for 4 days, until the acceleration once again became an issue. On 10/13, I was driving the car and it would not accelerate, and the check engine light was on. I pulled over, turned off the car, turned the car back on--at this point the car was able to accelerate however still had a check engine light on. Approximately 10mins of driving, the car once again would not accelerate. I tried the same process, called the dealership, and drove the vehicle to the Hyundai dealership in that area. While driving the vehicle on the interstate, the same acceleration problem occurred. YES--multiple people including children have been in danger/safety put at risk due to this. The dealership/mechanic forman was able to drive the car while I was inside, and noted the same acceleration issues on 10/13. Our 12-v battery dying has been a constant and consistent issue since 4/2026, however this is the first time we have experiences loss of acceleration, leaving at time myself, husband, children stranded.

Filed Oct 3, 2026 · Electrical, Engine · PA

Driving the car in a shaded area. All lights went off on the dash telling me every warning. Car stalled out and died on the side of the road. 5th time this exact thing has happened and Hyundai dealer said nothing is wrong.

Filed Aug 2, 2026 · Electrical · NC

I keep getting the alert “Check Forward Attention Warning system”. It’s nonstop even when I’m not driving the vehicle. I have taken it in to the dealership 4 times. This started only after the most recent software update that Hyundai released. The dealership did everything they could, and contacted Hyundai who told them to replace the camera on the steering wheel (which they did). They thought that would fix the problem, and it did not. I believe this is something with the new software update since other users on forums are complaining about this exact alert. It’s sporadic, it happens very frequently though, but it is unpredictable. All of this points to a software update and Hyundai has not fixed this bug in over a year. It’s beyond frustrating that there is no fix and they are just making their customers deal with this issue with no apparent fix.

Filed Jul 13, 2026 · Electrical, Fuel system · NJ

The vehicle will not accelerate past 30 mph on the highway. The fuel system will not engage, and the vehicle continues to run on hybrid mode which causes the battery to drain and acceleration to throttle. This occurs on all drive modes and fuel conditions.

Filed Jul 4, 2026 · Electrical, Engine · WA

While driving on the highway the vehicle lost power and then lowered the transmission gear and would not accelerate over 17mph regardless of pressure on accelerator. I switched from auto hybrid mode over to sport mode so the gasoline engine could be used yet the transmission would not increase power to the tires. I stopped several times and restarted with no corrections. Vehicle battery drained quickly and vehicle alarm told me to pull over to charge battery. Sat for a few minutes to charge battery, put in drive and vehicle went forward to 17-20 mph and would not go any faster. Pedal was to the floor. The vehicle then gave several alarm lights and system failures. I limped the car home and called roadside assistance. Tried to put car in reverse for an easy tow and the car wouldn't move in reverse.

Filed Jun 29, 2026 · Electrical · MI

The rear power liftgate on my 2024 Hyundai Santa Fe Hybrid (VIN [XXX]) repeatedly opened and closed on its own, without any command from the key fob, interior button, or any occupant. This occurred over a period of several months. It happened while the vehicle was parked and, more dangerously, while the vehicle was in motion at normal driving speeds. An un-commanded liftgate opening while driving creates a serious safety hazard: loss of rear visibility, the risk of unsecured cargo being ejected onto the roadway, and the gate striking a person or object when it deploys unexpectedly. The overnight, un-commanded cycling while parked is extensively documented on my home security cameras, which recorded the gate opening and closing repeatedly throughout the night. The dealer (Williams Hyundai, Lansing, MI) diagnosed the cause as a faulty resistance fault in the rear hatch wiring harness assembly, which sent false signal inputs to the vehicle and triggered the motorized latch and actuators. The repair was completed under the New Vehicle Limited Warranty. A secondary effect of the continuous overnight cycling was repeated deep-discharge of the 12V battery, leaving the vehicle dead on multiple mornings. I am reporting this because the un-commanded operation of a motorized liftgate — particularly while the vehicle is moving — is a safety defect that may not be isolated to my vehicle. I have retained service records, the dealer's diagnostic notes, and the home security footage, and can provide them on request. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 23, 2026 · Brakes, Electrical · TX

While driving on the highway, my 2024 Santa Fe Hybrid suddenly and without warning lost propulsion power. The loss of power was immediately accompanied by multiple simultaneous warning lights across the instrument cluster, glitching and abnormal behavior of the cluster display, and then a complete electrical shutdown of the vehicle. After the shutdown, the vehicle would not restart. The failure occurred in connection with a software update on the vehicle. At the time of the incident the vehicle had approximately 12,828 miles on it. Losing motive power while traveling at highway speed created a serious crash risk, as the vehicle was unable to maintain or recover speed in moving traffic. No crash, injury, or fire resulted. The vehicle was towed to an authorized Hyundai dealer for diagnosis. I have photographs of the instrument cluster taken at the time of failure showing numerous warning indicators illuminated at once. The symptoms I experienced — progressive or sudden loss of drive power, 12-volt/charging-related faults, and failure to restart — appear consistent with charging-control and DC-to-DC converter failures that have been the subject of prior recalls and complaints on Hyundai electrified vehicles. I am filing this report to document the incident as a safety concern.

Filed Feb 15, 2026 · Driver assistance, Electrical · NM

Incident Description: I am reporting a recurring and dangerous safety defect involving the ADAS (Advanced Driver Assistance Systems) on my 2024 Hyundai Santa Fe Hybrid. On multiple occasions, the vehicle has exhibited uncommanded steering input. Even when the Lane Keeping Assist (LKA) system is manually disabled by the driver, the vehicle software overrides this command and re-activates the system without driver input, causing unpredictable steering behavior. System Failures & Error Codes: The vehicle intermittently displays a "Check Forward Attention Warning System" failure. Dealership diagnostics have confirmed the following historical fault codes related to module communication: •C164286, C168886, C16B902, C28B981 Related Safety Recalls: This vehicle is currently subject to Recall 265 (the federal safety agency 24V561000) for main floor wiring harness chafing and Recall 288 (the federal safety agency 25V808000) for rearview camera wiring tension. I believe the uncommanded steering and camera failures are direct results of the electrical interference or harness damage described in these active safety recalls. Safety Risk: The uncommanded steering override creates an immediate risk of a crash, especially in high-speed highway conditions where the vehicle may unexpectedly pull against the driver's intent.

Filed Aug 28, 2025 · Electrical · MD

I purchased the Vehicle from Ourisman Hyundai of Bowie, Inc. (Bowie, Maryland) on [XXX] (the “Date of Purchase”). Within a few months of the Date of Purchase, I began having issues with the digital dashboard and heads up display. Both the digital dashboard and heads up display would go completely dark, leaving me an inability to view essential operational and safety information, including but not limited to, the speedometer, rear view camera, blind spot cameras, driving mode, driving gear, navigation, warning messages, lane following assist, tire pressure monitoring system, driver attention warnings, etc. (the “Hazardous Condition”). After multiple calls and emails with the service manager at Len Stoler Hyundai (Owings Mills, Maryland), I took my car to their dealership on November 5, 2024, December 30, 2024, and May 28, 2025, to have Hazardous Condition corrected. Although Len Stoler Hyundai was able to slightly improve the Hazardous Condition such that it was more intermittent – going dark for minutes or hours at a time instead of days at a time - the problem was never satisfactorily resolved. Recently, the Hazardous Condition became less intermittent, and all screens went permanently dark. Since Len Stoler Hyundai closed their doors, I reached out to Heritage Hyundai Owings Mills to address the Hazardous Condition. After a detailed call with a service advisor, I dropped off the Vehicle to them on August 15, 2025, and as of the date of this letter, thirteen (13) days have passed without them resolving the Hazardous Condition, or even returning my repeated telephone calls. To date, Heritage Hyundai Owings Mills remains in possession of the Vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 16, 2024 · Electrical, Engine · MO

Brand new vehicle purchased through Clement Hyundai. Within a couple hundred miles, multiple times vehicle goes into neutral on its own while driving. Have to stop the vehicle and turn off engine to try to get it into drive to get off the road. Takes several attempts to get into drive. Major safety hazard! Repaired once by Jefferson City Hyundai. Same problem happening again. Car not drivable as it is a safety concern. Have found multiple online forums wherein people are having the exact same problem.