2022 Hyundai Tucson: sudden loss of power

Filed Aug 26, 2026 · TX

On August 26, 2026, while driving to work, my 2022 Hyundai Tucson unexpectedly lost power and shut down while the vehicle was being driven. This created a serious safety concern because the vehicle became inoperable while in traffic. This vehicle has had a history of repeated problems and has been taken to Hyundai dealerships for repairs on numerous occasions. Despite these previous dealership visits and repair attempts, the vehicle continues to experience problems. The latest incident, in which the vehicle shut down while being driven, has significantly increased my concern regarding the safety and reliability of the vehicle. The vehicle is being made available for inspection and diagnosis. At this time, the exact component or cause of the failure is unknown. I am requesting that this complaint be documented because of the sudden loss of power while driving and the vehicle's history of repeated dealership visits and repairs. I am concerned that this condition could cause a crash if the vehicle unexpectedly loses power again while traveling in traffic or at highway speeds.

Filed Jun 7, 2026 · Acceleration, Engine · WA

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.

Filed Apr 10, 2026 · Fuel system · CA

I purchased this 2022 tucson limited hyundai new. It has 25,000 miles on it. The car check engine light came on and a power reduction began along with shaking of the car. I was able to clear the intersection safely. I was able to turn into a safe spot and shut down the car. It was towed to the dealer who then informed me that it was an injector know issue for this year and would be covered under the 5 year warranty. However, as this is a engine/powertrain problem, it should be covered on the 100,000/ten year warranty. A tsb (23-fl-002h-1) alert had already been issued, but not a recall. Many owners have reported having this problem repeatedly, as a safety issue and a known mfg defect. When is the government going to step up and demand a real fix be done before someone is killed? Owner are current left fighting with the dealers over the warranty limits or taking legal action. If you google this problem, you can find out the national level of this problem, from accidents which caused fires or accidents from power loss. My car is still at the dealer waiting on parts. Its time to force a recall! I will be demanding that it is covered for the 10 year warranty period and considering taking action under the lemon laws. If the government fails to act on this soon, than they are just as libel as the manufacturer. Your immediate attention to this issues is requested.

Filed Feb 8, 2026 · Electrical, Transmission · PA

When My wife was driving our car on the highway today to work, the car suddenly threw a "check hybrid system - pullover safely" light when she was at highway speeds. She was able to luckily pull over quickly onto the shoulder before the car completely powered down. This is incredibly dangerous. She had to click on the reset 12 volt hybrid battery button in the car to get it started again but the complete loss of power at highway speed was very upsetting.

Filed Dec 18, 2025 · Engine · NJ

While operating the vehicle, the engine shut down. Complete loss of power. Engine would restart, stall and then not restart. Vehicle immobile. Vehicle towed to dealership since could not be driven. Strong smell of gasoline.

Filed Nov 12, 2025 · Engine · TX

2022 Tucson (NX4, Alabama built) 2.5L Engine experienced a catastrophic failure leading to Hyundai dealer diagnosis that "Cylinder #3 is not contributing properly," which requires a full engine replacement. The vehicle is currently located at home and is available for inspection upon request. The engine scuffing has resulted in a severe loss of power contribution from Cylinder #3, leading to potential for sudden engine stall or complete loss of motive power while driving. If the engine seizes or stalls at highway speeds or during a critical maneuver (e.g., merging onto a freeway or turning across traffic), it creates an unreasonable risk of a rear-end collision or a catastrophic accident, endangering both the driver and others on the road. Furthermore, the internal mechanical failure creates a significant FIRE RISK due to potential oil leakage onto hot exhaust components. The problem has been confirmed by Hyundai Service Center in El Paso, Texas and three independent service centers in Arizona and Texas. All four assessments concluded that the vehicle requires a full engine replacement due to severe internal damage. Inspected by Hyundai Service Center in El Paso, TX. Despite confirming failure, Hyundai refuses to provide critical diagnostic data (Power Balance Test, Endoscopic Inspection, DTCs) and the determined root cause. This refusal hinders warranty transparency. The Check Engine Light (CEL) did not illuminate. Symptoms appeared late September 2025 at approximately 88,000 miles (audible engine noise/scuffing, rough idle, significant power loss). This failure at non-typical mileage demonstrates a severe internal defect and a safety system malfunction (failure of the ECU/CEL to adequately warn the driver). Note: Dashcam video documentation of the engine failure symptoms (audible noise and power loss) is available and can be presented to investigators upon request.

Filed Oct 28, 2025 · Engine · FL

I am submitting this complaint regarding an ongoing and dangerous issue with my 2022 Hyundai Tucson involving repeated fuel injector failures that have caused the vehicle to stall and lose power while driving, without any prior warning indicators. The first incident occurred in October 2023, at approximately 16,000 miles, when the car suddenly died while I was driving. There were no warning lights or signs of a problem before the stall occurred. The vehicle had to be towed to the dealership, where they replaced two fuel injectors. Just two weeks later, the same issue happened again—the car died while driving and was towed back to the dealership. The remaining injectors were then replaced. Unfortunately, this problem has continued. In November 2024, at around 26,000 miles, the vehicle again stalled while driving, with no warning, due to another fuel injector failure ( more failed injectors). Most recently, on October 18, 2025, with 31,000 miles on the odometer, my Tucson lost power and died while I was merging onto an interstate—once again with no warning or alert of any kind. I am still waiting for confirmation of how many injectors have failed this time. This is an extremely serious safety hazard. Losing engine power unexpectedly, especially while merging into highway traffic, puts both the driver and others on the road at significant risk of a collision or serious injury. Despite multiple occurrences, Hyundai has not identified the root cause of the injector failures and continues only to replace the faulty parts, which clearly does not resolve the underlying issue. It is unacceptable that a relatively new vehicle would experience repeated fuel system failures of this nature, and it is clear that there is a systemic defect affecting safety and reliability. I urge the federal safety agency to investigate this issue to determine whether other Hyundai Tucson owners are experiencing similar failures and whether a recall or safety action is warranted.

Filed Oct 26, 2025 · Fuel system · OK

What component or system failed or malfunctioned, and is it available for inspection upon request? Cylinder 4 fuel injector failed while driving 70 MPH down the highway. The dealer or manufacturer will have the faulty parts for inspection. How was your safety or the safety of others put at risk? Loss of power and acceleration put me and others at risk; I could not go over 40 MPH on the highway, the car was lurching the entire time. Inattentive drivers being the main concern, with low speeds and driving/sitting still on the shoulder of the road. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, the dealership I had it towed to confirmed the injector failed. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? The manufacturer is aware of the issue. There is a TSB issued that asks the dealer to send the faulty parts back to them. They are fully aware of the issue and are choosing to replace faulty parts with equally faulty parts. The dealer told me the replacement injectors “are not supposed to have the factory defect” but confirmed they are the same parts. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Yes, the engine light came on and I lost power/acceleration simultaneously.

Filed Sep 25, 2025 · Fuel system · OK

Taken car to work, driving down highway check engine light come on with loss of power. Took to dealership reported cylinder number 3 fuel injector was stuck open. Replaced all 4 injectors. Found TSB for it

Filed Sep 4, 2025 · Engine, Fuel system · NJ

Hyundai has a known issue with GDI fuel injectors. Car begins to shake and lose power and eventually will stall due to cylinder misfire caused by defective injectors.

Filed Aug 16, 2025 · Engine, Fuel system · CT

Fuel injector failure. Car was losing power completely when pressing the gas pedal then would suddenly catch and go again. Then go very slowly with little power, almost got into an accident because of the loss of acceleration. They replaced the fuel injectors and it is now happening a second time with the check engine light coming on again. A RECALL NEEDS TO BE MADE! SEVERAL OF THE SAME COMPLAINTS ON HERE!!!!!!!

Filed Jun 29, 2025 · Fuel system · NJ

For the second time I was driving and all of a sudden lost power and couldn’t give it gas to go. I was almost hit from behind both times.