2024 Hyundai Santa Fe engine problems

Filed Sep 23, 2026 · Engine · KS

I am reporting an intermittent transmission/shifting issue that has not been resolved despite multiple visits to the dealership. On several occasions, when shifting my vehicle from Park into Drive or Reverse, the vehicle will not engage the selected gear and remains in Park. When this happens, the vehicle is not drivable until I place it back in Park, shut the engine off, and restart it. After restarting, the transmission will usually engage normally. I have reported this issue to the dealership multiple times. The dealership has connected diagnostic equipment to the vehicle; however, no diagnostic trouble codes have been stored, and they have been unable to identify the cause. Despite the lack of codes, the problem continues to occur intermittently. My concern is that this issue could create a safety hazard if the vehicle fails to engage a gear when needed, such as when entering traffic, leaving a parking area, or attempting to move the vehicle out of a dangerous situation. The fact that the vehicle only operates properly after being shut off and restarted suggests a possible defect within the shifting, transmission, or electronic control system. I am requesting that this complaint be documented and investigated, as the issue remains unresolved and may affect other vehicles of the same make and model.

Filed Aug 25, 2026 · Acceleration, Electrical · DE

2024 Hyundai Santa Fe gasoline model. My VIN was included in Hyundai Safety Recall 263 / the federal safety agency Recall 24V‑529 involving the Transmission Control Unit and potential damage to the dual-clutch transmission. On September 25, 2024, at fewer than 5,000 miles, the transmission failed and the vehicle was taken to a Hyundai dealership. The transmission repair/replacement was approved and the vehicle remained out of service until October 21, 2024. On June 5, 2026, the vehicle would not start and required towing to an authorized Hyundai dealership. The vehicle has remained at the dealership continuously since June 5 and has not been returned to me. The dealer has undertaken multiple unsuccessful repair/diagnostic efforts during the current visit. I am currently being told that the condition involves the engine/powertrain. Hyundai is now sending an engineer to the dealership because the condition remains unresolved. I am reporting this history because this vehicle experienced a transmission failure shortly after being subject to a federal transmission-related safety recall and has now developed another major engine/powertrain condition while still relatively new.

Filed Jul 22, 2026 · Electrical, Engine · FL

With my 2024 Hyundai Santa Fe SEL, at Cold start the coolant gage on the digital cluster always shows 2-3 bars on the gauge and once the vehicle is put into drive (at least 30-45 seconds start up), the coolant gauze immediately increases in temperature reading without full drive (15 feet after gear placed in Drive). This may be improperly reading the coolant temperature and the OEM thermostat may be defective from manufacturer build. This can cause improper cooling and increase engine failure due to overheating.

Filed Jul 13, 2026 · Engine, Fuel system · IL

I was merging onto the highway and the acceleration stopped working and the vehicle would not go more than 25 mph. Had to restart car in shoulder, isue seemed to self correct but then it happened 10 minutes later stranding me in between the highway and exit ramp. This was a huge safety issue and myself and others lives were at risk. I am bringing the vehicle in for inspection but this seems to be a recurring hyundai issue. There were no warnings that came on. The auto mode on the dash went from green to an amber color. When i restarted the vehicle nothing changed. After the second time it occurred a check engine light came on.

Filed Apr 19, 2026 · Brakes, Electrical · CA

When the car is off and in park and you go to turn on the car on by pressing the brake and power button button, the electrical system doesn't register and wont turn the ignition on and the brake gets stuck and you cant start the car. The same thing happens when the cars auto ignition is turned off at a red light then you press the gas to go but it doesnt show the gear is in drive and the ignition turns off and wont turn back on. The major safety concern is when this happens at a red light or in traffic and my car stalls and I am at risk of getting rear ended. I have taken the car to the dealership twice now for the same issue. The first time they claimed it was fixed but it wasnt and now it is at the dealership again for the same issue and I have not received any remedy yet. There is no warning to this issue it happens out of know where and is extremely dangerous. The issue has been going on for several months.

Filed Mar 5, 2026 · Engine, Transmission · MA

When making a right turn from a complete stop, the vehicle intermittently exhibits noticeable hesitation and reduced acceleration compared to normal straight-line launches. This has occurred approximately 5–6 times. The delay in power delivery creates an unsafe condition when merging from on-ramps into higher-speed traffic, as the vehicle does not accelerate as expected. This mismatch between expected and actual acceleration can lead to misjudgment of traffic gaps. No warning lights or diagnostic messages have appeared. The issue appears intermittently and specifically during right-turn launches from a stop.

Filed Sep 26, 2025 · Engine · AR

Vehicle was not driven for 2 days. The check engine light is one and says "active airflap issue" the flaps appear to be open when a/c is on and closed when vehicle is off. There is no debri or anything arount the air flaps. This could cause potential overheating and should not happen in a years time. We travel for my husband's job and this could be very dangerous. We thought we were buying a new RELIABLE vehicle.

Filed Jun 3, 2025 · Acceleration, Engine · SC

this truck has repeatedly gone in for service over 6 times for multiple issues. The worst issue which they cannot fix is the vehicle going into limp mode while driving . Loosing all acceleration then racing on its own . This is a very dangerous problem when on the highway.hyundai service keeps telling me that the diagnostic is not showing a problem. This can be caused due to many things including transmission electrical or computer problems. I have reported to the office of consumer affairs and they claim hyundai dealership in myrtle beach has not responded to them. meanwhile i am driving in a very scary situation not knowing when this will occur. This happens at random times with no warning. This has happened at least 10 times in the last few months.

Filed Apr 27, 2025 · Engine · NC

Vehicle has about 4k miles. Received “transmission system error, check transmission oil immediately”. The vehicle barely drives. Has a hard time changing gears. Hyundai says there are no recalls and are not being helpful in getting help. They say everything is fine but it is clearly not working. Brand new vehicle and cannot get it fixed.

Filed Feb 15, 2025 · Engine, Transmission · GA

Transmission. Less than 6 months of buying the vehicle, Hyundai replaced the transmission and now I’m still having problems..it revved up to 2.3 rpms but didn’t change gears then jerks into gear..not everyday but atleast once a week. I’m waiting now on the dealership to look at my car now..but they’re dragging their feet.