2022 Hyundai Tucson: check engine light

Filed Oct 8, 2026 · Driver assistance, Electrical · IN

Approximately one week after having my oil changed at a Hyundai dealership, I began experiencing intermittent collision safety alerts and multiple dashboard warning lights. On three separate occasions when I started the vehicle, warnings appeared for the forward and rear collision systems, along with multiple other sensor warnings and engine warning lights. During one incident while driving in traffic, the forward collision warning activated and the vehicle abruptly applied the brakes. I was nearly rear-ended as a result. I have taken the vehicle back to the dealership on two separate occasions. The dealership reported replacing a sensor, but the warning lights and collision system issues have continued to occur intermittently. I am concerned that the vehicle may unexpectedly apply the brakes again, creating a risk of a collision.

Filed Sep 30, 2026 · Transmission · RI

On three occasions my car suddenly stopped transferring power by not accelerating when the gas pedal was pressed. The first time the engine light came on and when I brought it for service they said it was a sensor covered by warranty and repaired it. The second time it happened while I was trying to merge with traffic on the highway. I took an exit and managed to get to the dealer. They replaced the fuel injector and fuel line. The third time, first the car struggled to start after work. Then, I was pulling out of the parking lot, crossing a very busy road. The car could barely get up to and past 20 mph. Once I got it to 35 or so, I stayed on local roads with my hazards on, and managed to get it to the dealer. No engine light came on and they haven’t been able to replicate the issue. This is a very serious safety concern! I am afraid to drive it now since the car can stop without warning and without any brake lights coming on. I am fully covered by warranty but am worried they won’t want to cover the cost to make my vehicle safe. Google shows engine problems like this as one of the known issues on the 2022 Tucson Limited.

Filed Sep 2, 2026 · Driver assistance, Engine · ID

The car was shaking, idling and accelerating and engine lights on.

Filed Aug 29, 2026 · Engine, Fuel system · TX

In April 2026 (29,805 miles) I was on an interstate underpass U-turn and when I went to accelerate from the U-turn, the vehicle “revved”, had difficulty accelerating, and appeared to not go into the next gear for a roughly 10 seconds, meaning I was unable to accelerate and get out of the way from oncoming traffic. Traffic slowed and the vehicle suddenly returned to normal (no warning lights appeared) and I drove home cautiously with hazards on. When attempting to leave less than 45 minutes later, the vehicle started, then as I placed it into drive, it began lunging and the check engine light appeared. Because it was running rough and kept lunging, I parked and had it towed to the dealership. The DTC code listed was PO30300 (DTC system powertrain and subsystem EMS). Per the dealership, fuel injector #3 was bad and needed to be replaced. When I picked up the vehicle, notes stated “ GDI FUEL INJCTR REPL (ALL4)”. I picked up the vehicle after the repair. In August 2026 (30,923 miles), with less than 1,000 miles driven since repair, I started the vehicle and it immediately “died”. I restarted it and the check engine light came on and it began lunging out of my driveway. I also had difficulty getting the vehicle to brake and almost hit our community entrance/exit gate. A notification appeared on my infotainment system stating: “A possible condition with your Engine Control System has been detected. A full system check is recommended to be done soon. Please contact your local dealership to schedule an appointment”. The DTC codes listed on the Hyundai app were: PO30020, PO30040, PO30010, PO30000, and PO19185, P217700. (DTC system powertrain and subsystem EMS). I had the vehicle towed to the dealership. They didn’t have a loaner vehicle and I canceled my trip. Later, I was notified that “a hose was disconnected and was allowing air to enter the engine”. He stated, “we flushed it out and everything is working now”. I was told I could come pick it up before they closed.

Filed Aug 26, 2026 · Fuel system · TN

Fuel injector went bad causing vehicle engine to misfire and shake rapidly. Check engine light is on. The vehicle only has 40,000 miles on it. Seems to be a very common concern for this make and model and roughly the same years. Will not accelerate instantly and will surge a bit when it does. Will still shake when the vehicle is idle.

Filed Aug 14, 2026 · Electrical, Engine · 3,212 miles · TX

The contact owns a 2022 Hyundai Tucson. The contact stated that the check engine warning light illuminated and was cleared; however, the warning light returned hours or days later. The dealer had cleared the check engine warning light approximately 15-16 times. The vehicle occasionally stalled while driving at various speeds. The dealer diagnosed the vehicle with terminal engine failure. The contact was informed that the fuel system needed to be overhauled, and the fuel injectors and caps needed to be replaced. The vehicle was repaired twice. The failure persisted after the contact had confirmed the diagnosis with a certified mechanic. The vehicle was returned to the dealer, who replaced the engine. The vehicle was parked for several hours, and the contact attempted to turn on the headlights, but the headlights failed to illuminate. While driving the vehicle, the vehicle hesitated several times. The following day, the vehicle failed to start approximately four times. The vehicle was driven to the dealer but hesitated several times along the way and failed to start once at the dealer. The dealer diagnosed the vehicle and determined that the battery and other parts needed to be replaced; however, the vehicle was not repaired. The manufacturer was made aware of the failure, and a complaint was filed. The failure mileage was 3,212.

Filed Aug 3, 2026 · Fuel system · AZ

While driving the car stalled and then the engine shutdown, caused by a misfired fuel injector. Myself and the passengers in the car were minorly safe, as this incident occurred while driving through the Yellowstone National park; having to pull over on the side of the road with no shoulder. The Woody Smith Hyundai Dealership in Idaho Falls confirmed that the feul injectors had misfired, and then replaced them. Prior to the failure, there was no warning until the car was actively stalling and failing (battery light and check engine light came on).

Filed May 5, 2026 · Engine · VA

Check engine light appeared, Car began shaking and struggling to accelerate. Independent mechanic and OReileys test stated cylinder 3 misfirw. Dealership stated GDI fuel injectors were leaking and is a known issue in several 2022 Hyundai Tuscon and needed to be replaced.

Filed Apr 24, 2026 · TN

At a slow speed the car lurched, paused, in traffic. The engine light is on. It could be dangerous.

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 Mar 29, 2026 · Electrical, Engine · HI

While driving, I accelerated to merge onto the highway. The check engine light flashed a few times and the engine started wobbling like it was misfiring. I have also been having a parasitic drain on my auxiliary batter that makes the car not open to my key fob that I know works. The dealership told me it was bad fuel, but they “tested the fuel” with no diagnostic report/proof/records, saying that the fuel was bad and had a high concentration of 5% alcohol. They re-did the test and took pictures which shows the fuel is within tolerance but no diagnostic report and are refusing to complete a warranty checkup on my engine/electrical system. Also, the misfires with acceleration due to merging has happened 3 times. From the start back in July 2025 till now.

Filed Mar 12, 2026 · Engine · 69,000 miles · TX

The contact owns a 2022 Hyundai Tucson. The contact stated that while stopped, the vehicle hesitated to respond, with the check engine warning light illuminated. The contact stated that while the vehicle was parked, it was shaking unexpectedly with a misfire coming from the engine, and the check engine warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed and determined that the fuel injector had failed and needed to be replaced. The vehicle was repaired. The contact later stated that while driving at an undisclosed speed, the vehicle lost motive power, with the check engine warning light illuminated. The vehicle was taken back to the dealer, where it was diagnosed and determined that the cylinders had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 69,000.