Table 1 shows one common other fuel system related problems of the 2024 Hyundai Tucson.
| Problem Category | Number of Problems |
|---|---|
| Other Fuel System problems |
While driving at approximately 70 mph on a highway under normal conditions, the vehicle experienced a sudden loss of engine power. A check engine light illuminated at the time of the failure, and the vehicle was unable to maintain normal acceleration or consistent speed. The loss of power created a hazardous situation in active traffic, as the vehicle could not safely maintain speed with surrounding vehicles. The vehicle was later inspected by an authorized dealership, which confirmed severe internal engine damage, including cylinder damage and engine misfire requiring major repair or replacement. No clear root cause has been provided. There were no prior warning signs or symptoms before the incident. Warning signs prior to failure: none observed. The vehicle is available for inspection upon request. Dealer confirmation: yes. Manufacturer inspection: unknown.
Component: engine/powertrain/electrical system incident description: I am reporting a recurring, life-threatening "loss of motive power" (dead pedal) in a 2024 Hyundai Tucson (alabama-built). On multiple occasions, the vehicle has failed to respond to throttle input during high-risk maneuvers, specifically while merging into 45+ mph traffic. The vehicle "chugs" and stalls, refusing to exceed 15 mph despite full accelerator depression. This defect leaves the vehicle and its occupants stranded and defenseless in the path of oncoming high-speed traffic. Technical context: this vehicle is currently subject to NHTSA recall 23v-526 (Hyundai campaign 246) for electronic controller damage that can cause "can communication disruptions. " I believe the "dead pedal" failure is a direct result of these communication disruptions between the engine and transmission control modules. Furthermore, Hyundai has issued TSB #24-at-001h-1 for "hesitation when accelerating," yet the authorized dealer (ed voyles Hyundai) has been unable to remedy the defect after 84 cumulative days out of service. Safety risk: this is not a convenience issue; it is a critical safety failure. The unpredictable nature of the power loss makes it impossible to safely judge gaps in traffic. The vehicle effectively becomes a stationary object on active roadways without warning. Manufacturer response: the manufacturer has been formally notified via certified legal counsel. Despite 79 consecutive days in the current repair attempt (since Jan 16, 2026), the manufacturer has failed to provide a fix or acknowledge the severity of the safety risk. An informal third-party evaluator attempted to dismiss the claim despite the vehicle's documented inability to maintain motive power. We are requesting that NHTSA investigate the adequacy of recall 23v-526 and TSB #24-at-001h-1, as these measures have failed to resolve this life-threatening "dead pedal" condition in my vehicle.
My 2024 sel hybrid has a very annoying acceleration delay after a full or partial stop. The delay has occurred many times. It is present no matter which mode the car is on. It is not a matter of slow acceleration, but a 1-2 second delay of anything happening after I press the pedal. This could be a safety issue when you're at a stop sign and you need to proceed and you can't go.
My wife was slowly pulling into a parking spot, when at about 10ft from curb the car suddenly accelerated faster than she even thought the car even was capable of (the awd likely helped). It hopped the curb and hit a tree. She backed it up to the parking spot (it acted normally) and had it towed to dealer. In hindsight, the car had been having a progressive amount and frequency of delay in normal acceleration, sometimes having a pause of up to second or two from pedal input to car response. We asked the dealer to check the edr (event data recorder). The tech first said he didn't even know what that was, then that he checked with all his fellow techs and they didn't know either, then the story changed to the model not having an edr. We politely told him which page in the Hyundai manual he can find it, and he refused to look, as did his boss. Car was transferred to a body shop, and disposition was to total the vehicle. While the body shop was still evaluating the car, we contacted a second dealer, who said they don't have a reader. I inspected the floormats before the car was towed, as that was an initial suspect, but it was locked in and clearly there was no obstruction. She was wearing tennis shoes and doesn't recall ever having an instance of hitting the wrong pedal in any vehicle. She thinks she was only coasting, not even touching the brake yet.
On multiple occasions the vehicle has not transferred from ev to mechanical mode and has stalled out. Shutting the car and restarting it resolved the problem each time. Hyundai has not been able to find the fault after multiple trips to the dealership and no code is recorded or reported. I bought a code reader and the last time this occurred recorded a code. P1120 $07e8pd I brought the car back into Hyundai and reported the code to- it was not saved in the car's memory. They have had the car for over 3 weeks now and repairs have not been completed.
While driving, car suddenly slowed and would not accelerate as normal with accelerator depressed. A dashboard warning "check hybrid system" appeared and acceleration was unable to power car up hill. Driver forced to pull over on shoulder. After turning off and turning on vehicle, issue seemed to temporarily resolve itself. Dealer was unable to identify any faults in the car 3 days after this incident, and returned car to owner. A week later, the same issue occurred. Car would not accelerate after stop sign. When pressing accelerator, car coasted forward a a few mph. Turning off vehicle and turning on again resulted in normal performance resuming.
Hesitation upon accelerating from a stopped position. When pulling out from a stop into a busy intersection the vehicle hesitates for several seconds. I have almost been broadsided when attempting to pull out onto a busier roadway. The vehicle feels as though it is stalled, then suddenly lunges. Apparently this is a known feature of the Hyundai hybrid after reading that it is the top complaint. There are no codes or warning lights that appear. I feel this is a safety issue. A car should move when you put your foot on the accelerator and not just sit there for several seconds. Please, please have Hyundai resolve this issue. I have had my car to the dealer 3 times for this issue without resolution.