354 of the
8,589 complaints filed about the Hyundai Tucson
are about the throttle and cruise control —
4% of everything owners reported.
The worst model year for it is 2016.
354
Complaints
4%
Share of all complaints
31
Crashes
2
Fires
Acceleration & Cruise Control complaints by model year
Component: Forward Collision Avoidance / Steering / Electrical SystemDescription of Incident: While driving a rented 2026 Hyundai Tucson SEL AWD (VIN: [XXX]) on the [XXX], the vehicle experienced a severe, uncommanded steering intervention. While maintaining momentum on a winding road, the vehicle's automated systems falsely intervened, aggressively pulling the steering wheel and forcing the vehicle toward the edge of a cliff. The sensation mirrored violent torque steer, fighting driver input and nearly causing a catastrophic departure from the roadway.Safety Risk: This VIN is currently unlisted for active campaigns, but it is exhibiting the exact life-threatening failure mode detailed in NHTSA Campaign 26V316000 (FCA software defect). The manufacturer's current recall scope is inadequate and must be expanded immediately to include this VIN sequence before an uncommanded steering event results in a fatal crash. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11751443 — an unverified report by a vehicle owner.
This has happened twice now. When going at a low speed, once in traffic, once while performing a U-turn, while braking, the car is trying to accelerate. I have to practically stand on the brake pedal to avoid the car lurching forward. I saw no warning lights on the dashboard. I haven't yet brought the vehicle to a dealer or service center, but it will be.
NHTSA complaint #11751431 — an unverified report by a vehicle owner.
I was on the highway on the way to work when my car started stalling. Every time I pressed the gas to give it some power, it would not go anyway where. after getting it towed to get looked at some of the fuel injectors failed and were misfiring. The warning message about ‘check engine’ popped up 2 minutes before it happened. this is the third time now in less than 6 months.
NHTSA complaint #11749034 — an unverified report by a vehicle owner.
On 3 occasions over my 18-month ownership of this certified pre-owned Hyundai 2022 Tucson, the vehicle surged suddenly forward WITH BRAKE APPLIED at creeping (parking) speeds of 3-4 mph. No warning lamps were observed. On the most recent (3rd) occasion, a crash over a sidewalk and into a storefront caused $10,000 damage. No pedestrians were harmed, no airbags deployed and neither passenger was harmed. The service department is "unable to duplicate" the surging behavior and declares the car mechanically "safe to drive."
NHTSA complaint #11743887 — an unverified report by a vehicle owner.
The vehicle severely shudders, jerks, and hesitates from a stop and while making a turn, during both acceleration and deceleration, making it entirely unsafe to drive. The vehicle has been completely un-driveable for the past 6 days. The check engine light illuminated, and on 4/9/26, the dealer documented a failed transmission judder test and kept the car, issuing a loaner. A temporary software patch failed after two weeks. Upon return, the dealer reported they were unable to recreate the problem, recommended returning when the vehicle demonstrates the problem more frequently, and refused to mechanically repair the dual-clutch transmission under my active original-owner 100,000-mile powertrain warranty, basically instructing me to continue to drive a seriously un-safe vehicle. Most recently, a yellow dashboard warning light illuminated, and the vehicle entered a dangerous 'limp mode,' severely restricting power and struggling to move before the light cleared after cooling down. The vehicle is completely un-driveable and parked.
NHTSA complaint #11743723 — an unverified report by a vehicle owner.
My 2022 Hyundai Tucson Experience, a sudden transmission failure at approximately 92,520 miles. The vehicle develop shifting issues and abnormal noises before losing propulsión. While driving. Hyundai diagnosed and internal Transmission failure and approved transmission replacement. I’m concerned about the sudden loss of proportion and the safety risk this creates. Hyundai proposed repair is to replace the transmission with a rebuild remanufacture transmission rather than a new transmission. I am concerned about the reliability of the repair following a complete transmission failure.
NHTSA complaint #11743833 — an unverified report by a vehicle owner.
I am submitting this complaint regarding my 2022 Hyundai Tucson equipped with the 2.5L engine. The vehicle has experienced multiple incidents of severe engine misfiring while driving. During these events, the engine begins to shake violently, the entire vehicle vibrates, and engine power is significantly reduced. The vehicle becomes unable to accelerate normally, creating a serious safety hazard, especially when driving on highways or in traffic. The malfunction has occurred several times. Diagnostic trouble codes P0302 and P0303 have been recorded, indicating cylinder misfires. In some cases, turning the engine off and restarting it temporarily restores normal operation. On other occasions, adding fuel system cleaner appeared to temporarily improve the condition. However, the problem eventually returns. Because the condition is intermittent, the Hyundai dealership has been unable to reproduce the failure during inspection and therefore has not performed a repair under warranty. Despite multiple visits, the root cause remains unidentified. I am concerned that the sudden loss of power and severe engine vibration could result in an accident if the vehicle is unable to maintain speed or accelerate while traveling at highway speeds. This issue has significantly affected the safe operation of the vehicle. I request that this matter be investigated, as it appears to be a recurring safety-related defect.
NHTSA complaint #11742609 — an unverified report by a vehicle owner.
On XXX, my vehicle unexpectedly activated its automatic braking system while driving, resulting in a rear-end collision. My infant daughter was in the vehicle at the time. While we were fortunate to avoid catastrophic injuries, the incident placed both of us in significant danger and could easily have resulted in a much more serious outcome. The other driver may also have sustained injuries as a result of the collision. The vehicle sustained approximately $20,000 in damage. Since the accident, I have learned of Hyundai’s recall involving this braking system. Given the circumstances, I am deeply concerned that the condition addressed by the recall contributed to the collision. What is particularly troubling is that this was not the first time I raised concerns regarding the vehicle’s braking behavior. On February 23, 2026, at approximately 11:00 a.m., I spoke with my dealership, North Bay Hyundai in [XXX] regarding unexpected braking behavior that I was experiencing with the vehicle. My concerns were not escalated, and I was not advised that a potential safety issue might exist. Several months later, I was involved in a collision involving the same system that is now subject to recall. I am also deeply concerned by the manner in which this recall was communicated. I received only a text message regarding a defect involving a critical vehicle safety system. Given the potential consequences of unexpected braking events, I do not believe the seriousness of this issue was adequately conveyed to affected customers. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11740955 — an unverified report by a vehicle owner.
Doesn't slow down properly when I step off from gas pedal and try to stop at traffic light/stop signs and before making turns. It barely reduces average 2 mph for whole block. Lets say when I step off from the gas pedal at 25 mph, the car reduce the speed to about 23 mph when it's so close to light/stop signs and right before making turns. It seems like there is no 1st gear, just 2nd gear is the lowest. Always I have to brake harsh before light/stop sign/ making turns. I've been driving for 45 years in NYC but I can't get used to this dangerously weird driving situation while driving the 2025 Hyundai Tucson. I have driven the 2023 Hyundai Tuscon before as well but I have not had this issue until now with the 2025 model.
NHTSA complaint #11740310 — an unverified report by a vehicle owner.
Oil drains very fast even with regular oil changes and maintenance. The vehicle began shaking and then completely stopped with very little warning. Check engine light flashed for under 60 seconds then vehicle would not move forward on the highway creating a major safety hazard. Engine smelled hot and like burning rubber.
NHTSA complaint #11737712 — an unverified report by a vehicle owner.
The vehicle has experienced life-threatening safety defects during operation; shaking, hesitation, and stalling in high-speed traffic. The vehicle unexpectedly stalled/lost power while driving, putting myself and others in direct risk of collision. The Hyundai dealership claimed it needed an Actuator Gasket replacement, Throttle Body replacement, and ECM/TCM update. The vehicle had NO warning lights until after it stalled, then warning lights illuminated briefly. The Hyundai dealership claimed repairs were "completed" 5/8/26; within 72 hours of "completion" the vehicle's symptoms reappeared. The Hyundai Executive Case Manager has made NO efforts to resolve this LIFE-THREATENING SAFETY issue. This has put myself and children in danger and is legally unsafe to drive.
NHTSA complaint #11737462 — an unverified report by a vehicle owner.
The Manual Speed Limit Assist, or MSLA, feature unintendedly activated while I was driving, nearly causing a collision. I was initially unable to deactivate this steering-wheel based feature, as: (1) I did not intentionally press any buttons to activate it, and: (2) I had to balance the need to visually monitor other vehicles on the highway to avoid a collision and simultaneously figure out how to cancel this feature, which places a limit on the speed that the vehicle can travel. Instead of claiming that this feature malfunctioned, I am claiming that it is an egregiously, poorly designed and dangerous feature. The button to activate it is located on the steering wheel; consequently, a driver can easily activate it without meaning to do so. This inadvertent activation happened to me twice, each time impeding, however briefly, my ability to safely navigate a busy road. This feature was not identified when I purchased the vehicle; however, earlier this year Hyundai belatedly sent a letter to its customers titled "Understanding Manual Speed Limit Assist (MSLA) Feature," pointing out how to activate and disengage the feature (and providing a link to a website for a tutorial with more information: [XXX] . INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11736842 — an unverified report by a vehicle owner.
My 2017 Hyundai Tucson is experiencing dangerous, sudden engine stalling, which are symptoms directly matching Service Campaign T1B. These critical safety issues surfaced following a total engine replacement in June 2025. Despite the vehicle being within the 12-month/12,000 mile workmanship warranty, the dealership is refusing to honor this coverage or offer goodwill assistance. My claim is based on a documented pattern of physical and technical negligence: - Failure to Update Software: The dealership failed to perform the mandatory ECM/TCM software integration (Campaign T1B) during engine swap, which is required to prevent the exact stalling I am now experiencing. - Dismissal of Warning Lights (Code P0456): One day after the engine replacement was “completed,” I returned to the dealership because the Check Engine Light illuminated with Code P0456. This was dismissed by the service provider without a proper diagnostic resolution, despite being a direct indicator of improper vacuum line reconnection during the engine installation. - Mechanical Negligence (Coolant Leak): Post-engine swap, the vehicle developed a coolant leak, which was a direct result of improper reassembly. Additional proof of the lack of due diligence during the repair. The lack of follow-through, combined with the dismissal of a life-safety defect and poor physical workmanship, suggests a total failure in the case management process. I am urgently requesting assistance to resolve this hazardous situation.
NHTSA complaint #11735576 — an unverified report by a vehicle owner.
The contact owns a 2022 Hyundai Tucson. The contact stated that while maneuvering into a handicap parking space, the vehicle suddenly accelerated on its own while the brake pedal was depressed. The vehicle climbed over a concrete parking bollard and struck a handicap sign, resulting in unintended acceleration. The vehicle was damaged in the undercarriage. No air bags were deployed. No injuries were reported. Property damage was a handicap sign. The vehicle was occupied by 2; the driver and passenger. A police report was filed. The vehicle was taken to the dealer, but has not been diagnosed. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 26,100.
NHTSA complaint #11734332 — an unverified report by a vehicle owner.
The component involved is the engine and associated knock detection system (KSDS). The system triggered a P1326 code indicating abnormal engine knock associated with a known defect condition. On February 14, 2023, while driving on the freeway, the vehicle suddenly entered reduced power (“limp mode”) and lost acceleration capability in active traffic. This created a safety risk, as the vehicle was unable to maintain speed with surrounding traffic or accelerate as needed for normal driving conditions. There were no sufficient warnings prior to the event to allow safe planning or avoidance of the loss of power condition. The system activation itself (P1326 and limp mode) was the first indication of the severity of the issue. The problem has been reproduced multiple times, with repeated P1326 events occurring after the initial incident. The condition has been inspected and partially confirmed by a Hyundai dealership. In March 2026, dealership records documented that oil contamination was causing catalytic converter failure, indicating ongoing engine-related deterioration consistent with the defect condition identified by the knock detection system. Despite these findings, the underlying engine condition has not been resolved. The KSDS system is designed to detect a potentially serious engine defect and limit engine power to prevent further damage. However, it does not correct the underlying defect. As a result, the vehicle may continue to operate with a known compromised condition that can trigger reduced power unexpectedly. This creates an ongoing safety concern. A vehicle that can suddenly lose acceleration due to a known defect presents a risk to the driver, passengers, and other motorists, particularly during freeway driving, merging, or other situations requiring normal engine performance. The vehicle remains available for inspection upon request.
NHTSA complaint #11730664 — an unverified report by a vehicle owner.
"On [XXX], my 2016 Hyundai Tucson (VIN [XXX] ) experienced severe engine power loss and mechanical noise under load while driving uphill, creating a dangerous safety situation. This occurred 2 days after a dealer visit (February 19, 2026) where an open KSDS Service Campaign (TSB HCE22-14-E600-TL, Issue 10D021) — directly related to engine monitoring — was left incomplete. The dealer subsequently denied an engine evaluation citing mileage over 150,000, despite the open campaign having no mileage restriction and despite a prior verbal commitment to cover repairs. Multiple follow-up attempts by phone, email, and WhatsApp have been ignored." INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11723436 — an unverified report by a vehicle owner.
Hyundai Tucson has been jerking and shaking for over over 4 years now and either when taking to the dealership they reset the dual clutch and have replaced the same part twice in the dual clutch. This shaking has been happening since the car was bought brand new like a year after. The vehicle now will get stuck in gear and while driving will go down to 20 mph and get stuck in that speed. This is a serious safety issue. The dealer could replicate the shaking but not the gears being stuck. It has happened on more than one occasion and they just reset something but this continues to happen. There are no warning lights when the gears get stuck it just happens while driving and it has happened twice now in the last 3 weeks.
NHTSA complaint #11719222 — an unverified report by a vehicle owner.
Component or system that failed or malfunctioned: The electronic throttle control system and/or the powertrain control system malfunctioned, causing the vehicle to accelerate automatically and involuntarily. How safety was put at risk: The malfunction caused a collision with another vehicle and a structure. The failure placed the safety and physical integrity of two individuals at serious risk. Problem reproduction or confirmation: To my understanding, the issue has not yet been reproduced or confirmed by a dealer or an independent service center. Inspection of the vehicle or component: The vehicle and/or the affected component have not yet been inspected by the manufacturer (Hyundai), law enforcement, or insurance representatives, as an insurance claim is currently in progress. Warning lamps or prior symptoms: There were no warning lights, messages, or other symptoms prior to the failure. The incident occurred suddenly without any prior indication. During the event, the brake pedal did not respond.
NHTSA complaint #11716552 — an unverified report by a vehicle owner.
The contact rented a 2025 Hyundai Tucson. The contact stated that the vehicle would stop and would restart independently while driving. The contact stated that while attempting to reverse, the vehicle failed to respond on several occasions while the gear shifter was in reverse(R). The contact stated that the failure occurred while there was a vehicle parked behind the vehicle or further away. There was no warning light illuminated. The rental company was informed of the failure. Additionally, the contact stated that upon shifting to reverse on one occasion, the vehicle responded, but unintendedly accelerated. The contact stated that upon depressing the brake pedal, the brake pedal was stiff and failed to respond, causing the vehicle to crash into an unoccupied parked vehicle. The contact stated that the distance between the two vehicles could fit two parked vehicles. The contact stated that her teenager was occupying the front passenger's side seat during the incident. The contact stated that the front passenger's side and driver's side seat belts failed to restrain the passengers as needed, causing both passengers to use their arms to protect themselves. The police officers arrived at the scene but did not file a report. Both passengers sustained arm, neck, and head pain but declined to be transported to the hospital by ambulance. The contact stated that the gear shifter was locked after the crash and required two hands to move to park(P). The rental company was informed of the failure. The contact was able to drive the vehicle back to the residence. The vehicle was driven to the Rental Company the following day. No further information was available. The dealer and the manufacturer were not notified of the failure. The failure mileage was 24,292.
NHTSA complaint #11714439 — an unverified report by a vehicle owner.