2022 Hyundai Tucson electrical problems

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 Aug 31, 2026 · Electrical · 69,000 miles · MA

The contact owns a 2022 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, the right turn signal indicator light failed to illuminate on the instrument panel upon depressing the turn signal lever to make a right turn. No warning lights illuminated. Additionally, upon depressing the turn signal lever to make a left turn, the left turn signal indicator light failed to illuminate. The contact stated that the failure progressed. While driving at various speeds, the brake lights failed to illuminate when the brake pedal was depressed. The vehicle was taken to an independent mechanic, where it was diagnosed that the wiring harness needed to be replaced. The vehicle was repaired. The contact associated the failure with the federal safety agency Campaign Number: 25V893000 (Trailer Hitches); however, the VIN was not included in the recall. The dealer and the manufacturer were notified of the failure, and a case was filed. The failure mileage was approximately 69,000.

Filed Aug 28, 2026 · Electrical, Engine · 108,565 miles · MA

The contact owns a 2022 Hyundai Tucson. The contact stated while driving at an undisclosed speed, several unknown warning lights illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed with ECU software error. The contact was advised to contact the dealer. The dealer was made aware of the failure and advised the contact to report the failure to the federal safety agency Hotline. The contact referenced an unknown recall; however, the VIN was not associated with a recall related to the failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 108,565.

Filed Aug 24, 2026 · Brakes, Driver assistance · MA · crash

My wife was driving my SUV while I was a passenger. We were in the left lane, and put the left turn signal on while traveling south bound approaching an intersection to take a left turn (traveling approximately 3-5 Miles Per Hour and slowing) at the traffic light (traffic light was green). There was a car in front of us that had stopped waiting for oncoming traffic to clear and make the same left turn onto the same road as us. While traveling in this lane we hit a deep pot hole (not very visible while driving), just as we were approaching the vehicle stopped in front of us. When hitting the pot hole, our SUV seemed to leap forward a bit and when the brakes were applied to slow and stop, the braking system failed (appeared to freeze) and the brakes did not work, and because the braking didn’t work, our vehicle hit the car in front of us. Prior to and after hitting the pothole, no audible warning sounds or visible alerts appeared and no emergency braking was activated. The airbags in our vehicle never deployed. Our safety (my wife and I) as well as the safety of the 2 passengers in the other vehicle were at risk as we all could have been injured in the accident. As we needed the vehicle for transportation, we immediately began filing all the necessary police and insurance reports and brought our vehicle into an Auto Body Repair Shop to be repaired the next day. During the repair work, some of the responsible components may or may not have been replaced and the Auto Body Repair Shop also had all the car sensors recalibrated by a 3rd party, which is why we did not bring the car to a dealership to evaluate. To the best of our knowledge, the manufacturer, the police and the insurance company did not inspect the vehicle. We are not experts, but hitting a pothole might be considered an edge case, so I’m not sure that a dealership would have tried or been able to replicate the issue.

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 · Electrical, Lights · 25,800 miles · GA

The contact owns a 2022 Hyundai Tucson. The contact stated that while his wife was operating the vehicle, the vehicle lost headlight functionality without warning. In addition, the contact stated that the radio intermittently failed to operate while driving the vehicle. The contact stated that the headlight became operable when his wife was near to her destination. The vehicle was not diagnosed or repaired. Upon investigation, the contact discovered the federal safety agency Campaign Number: 21V938000 (Electrical System, Exterior Lighting); however, the VIN was not included in the recall. The manufacturer was not notified of the failure. The failure mileage was approximately 25,800.

Filed Jul 29, 2026 · Driver assistance, Electrical · TX

On July 24, 2026, while driving on a marked city street with no vehicle, pedestrian, or obstruction ahead, the Forward Collision-Avoidance system on our 2022 Hyundai Tucson Limited AWD applied emergency braking on its own, three to four separate times, each lasting one to two seconds. Traffic behind us nearly struck our vehicle. My family was in the car. This is the latest event in a progressive electrical fault history. In June 2025, under warranty at 48,037 miles, a Hyundai dealer documented recurring multi-system warning cascades (forward safety, lane keeping, high beam assist, speed limit warning) and a failed auto start/stop system. The dealer's listed resolution was "battery voltage / replace battery"; their invoice records that no repair was performed. We replaced the battery at our own expense. The faults continued. In June 2026, the start/stop system shut the engine off at a red light and the vehicle would not restart, leaving us disabled in a live traffic lane. Power was only restored by cycling the hood release. Since then, TCM and ECU software updates and a battery harness replacement (our expense, approx. $1,200) have been performed. The faults persisted after these repairs and have now escalated to uncommanded emergency braking. Date- and time-stamped video and photographs exist for multiple events. Two Hyundai dealerships have not identified a root cause. Similar phantom braking reports exist from other owners of this model year. We no longer consider the vehicle safe to drive.

Filed Jun 24, 2026 · Brakes, Driver assistance · MD

My 2022 Hyundai Tuscon came to a complete stop on the highway in Colorado twice in the last 2 months for no apparent reason. There weren't any obstacles or cars in front of me that would have caused the car to brake suddenly. I had passengers in the car and we were jolted forward. The air bags did not inflate and we were not hit from behind, but we could have been severely injured or killed. There are numerous "phantom braking" reports like this here on the federal safety agency site for the 2022 model as well as more recent models. Yet Hyundai has only issued recalls for the 2025 and 2026 models. How are you addressing this issue?

Filed Jun 4, 2026 · Electrical · OH

I was told there was a known issue with the electrical system with the front bumper harness and wiring harness need to be replaced due to water damage & Vehicle's horn keeps on going out and has to be replace

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.