Hyundai Tucson Hybrid warning lights comes on

Filed Oct 25, 2026 · Driver assistance, Electrical · MN

Display cluster recurring issue even after repair and software update. All warning lights on while at highway speed. Initial event in July 2025 - repair done. Coincidental with recall notice related to cluster display. Blank screen/cluster display while driving on July 30, 2026 - with eventual repair within same week. But, in October 2026 - all warning lights re-appeared intermittently from just flashing to steady display of at least 2 mins. Service date (third of same issue- excluding during regular maintenance where recall update done) already scheduled 10/26/26 at dealership.

Filed Aug 6, 2026 · Acceleration, Electrical · CA

While driving my 2022 Hyundai Tucson Hybrid, the vehicle suddenly lost power, began shaking, and all warning lights illuminated at once. The car would not accelerate properly and became unsafe to operate in traffic. After pulling over and restarting the vehicle, the warnings cleared, but the issue has occurred more than once. It first occurred 3/25/26. The dealer was not able to reproduce the issue but found numerous faults and reset them. This is a serious safety concern because the vehicle can unexpectedly lose motor power while driving, creating a risk of collision. The problem is intermittent and unpredictable.

Filed Jul 28, 2026 · Driver assistance, Electrical · OR

The entire information screen went black and the heads up display turned off while driving the car. The screen then intermittently flashed all warning lights as well as a "no service" message. The car continued to operate "normally".

Filed Nov 20, 2025 · Engine, Fuel system · NJ

I’ve experienced repeated electrical and mechanical issues with my 2022 Hyundai Tucson Hybrid. These include full battery drainage without engine activation (leaving me stranded), multiple warning lights, and recently a heater failure that remains unresolved. I’ve had over 8 service visits in two years, and Hyundai has not responded to my formal letter. A detailed timeline is available if needed.

Filed Sep 9, 2025 · Airbags, Brakes · TX

All warning lights and audible alarms started going off at the same time. EPS, ABS, Auto Hold, Collision warning, Air bags, All wheel drive, brake system, and more.1st time it happened was [XXX], while driving. The car was drivable but I did notice a difference in braking and acceleration. I parked and turned off the car. I did turn the car back on several times and the alarms continued. I finally turned it off for 10 min, and all alarms stopped, but the check engine light stayed on. Car sat overnight and all warnings had stopped. Took it in for service, and issue could not be duplicated. 2nd time it happened was [XXX]. I had to have the car towed since it would not move when in drive or reverse. Alarms were still going off when it made it to service. They replaced the brake harness. 3rd time happened on [XXX], 3 days after the brake harness was replaced. Towed it to service and they replaced the engine harness. 4th time was on [XXX], 2 weeks after engine harness was replaced. This time there were no audible alarms, just all of the visual ones. Same performance issues as stated before. This issue seems to have happened to several other Hyundai owners as well, as per complaints in Reddit and on Hyundai forums. There does not seem to be a consensus for what is actually causing this issue. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 8, 2025 · Electrical · FL

Intermittent failure of HUD and instrument cluster. HUD disappears from view and instrument cluster goes dark. Unable to read speedometer and information. All warning lights are lit. Cluster has a message no signal. Dealer has on order a replacement wire harness. Problem started after 1 month and 1000 miles. Replacement part on back order will take several weeks. Loaner car has been provided. No injuries or property damage.

Filed Sep 7, 2025 · Driver assistance, Electrical · VA

I have had two incidents with this vehicle (that I have owned for less than 90 days) that have raised safety concerns. Both involved the loss of all information on the "instrument panel" AKA dashboard. In the first (August 18, 2025), all of the warning lights came on, then the screen went dark - there was no information on the two screens and no head's up display. This happened while I was on the highway doing about 65 mph. After I was able to pull over safely, it took several attempts to get the vehicle started again and in gear. I took it to the dealer the next day and they were unable to replicate the issue and saw no codes. The second episode occurred yesterday (9/6/25). This time the screen went dark except for a large red warning "NO SIGNAL". The screen came back after a few moments; I am taking it to the dealer tomorrow. Both of these involved losing all information as to the speed of the vehicle - which I believe is a safety issue. Both of these issues have also been reported by others on Facebook ("Hyundai Owners") since late last year and it appears to be some sort of electrical issue but there has been no TSB or recall by Hyundai yet.

Filed Sep 3, 2025 · Electrical · MT

Heads up display and gauge cluster will intermittently flicker and/or reboot. When gauge cluster comes back on it will sometimes have all warning lights stay on. Have had it happen once where gauge cluster rebooted and then flashed "No Signal" while repeatedly rebooting. Both HUD and Gauge cluster do shut off together sometimes so I am no longer able to see my speed when that does happen

Filed Aug 14, 2025 · Electrical · NC

Instrument display and head up display go off and on at random times. Occasionally both are off at the same time so I can not see how fast I am going or use the video feed when signalling to turn. At times, all warning lights are on and do not go off so I am unable to tell if there is a problem with the vehicle.

Filed Aug 3, 2025 · Electrical · UT

My HUD was going off and on, especially on bumpier roads. This could happen several times on a drive. At least once, when the HUD went out, the dash lit up like a Christmas tree (all the warning lights came on), and a couple times it went totally black. I took it to the dealer and they diagnosed a bad head unit, and am awaiting parts.