Hyundai Tucson warning lights comes on

Filed Nov 9, 2026 · Brakes, Electrical · GA

My husband was driving the car to work and all of a sudden a bunch of dash warning lights came on. It was lit up like a Christmas tree. Then the car went into limp mode. The vehicle has been at the dealership 4 weeks. And they refuse to do a 20 min test on the ABS module. It is a part of the HECU Settlement. You can find the settlement at [XXX] My husband is an electronic engineer. He knows why all the lights are on simultaneously. The ABS needs to be replaced. It's causing all the communication to go down that's on that can bus system. That's why all the parts dont make sense to each other. It all boils down to the ABS improperly working causing communication issues. The recall fix did fix the fires. It won't catch fire now but the ABS is still malfunctioning. There's a lawsuit. All vehicles involved in the recall are required a free ABS inspection and a replacement if they are malfunctioning but the dealership refuses to diagnose the ABS. That is the loophole Hyundai has found to not uphold the law. They are not standing by the settlement. They are skirting around from checking the ABS module so they won't find the malfunction. They want us to replace parts that are brand new that my husband just replaced. They want to charge us $700 for some other part and refuse to check the ABS system per the lawsuit. My husband needs that vehicle to work. So he's been out of work for 4 weeks. It's ridiculous! I can't hire a lawyer at this time and it's ridiculous that I may have to. This corporation should uphold their part of a lawsuit! There was already a settlement. My vehicle is included without even submitting a claim. It's ABS warranty is also extended per the lawsuit. I've read it backwards and forwards. I'm so at a loss! I need help. They also refuse to help us with a loaner and that will force us to drive an unsafe car in limp mode off the property when they are responsible for fixing this faulty part per the settlement INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 10, 2026 · Acceleration, Electrical · NV

loss of info system loss of all dash lights when I turn the engine off most of the time I loose all electrical systems (will not start for at least 15 minutes) if doors lock I can only unlock the drivers door with the auxiliary key. Has tried to shift in to park while driving (one time) Lost all power (engine and steering while crossing a highway (once only)

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 28, 2026 · Fuel system · IN

My car suddenly broke down on the side of a busy highway halfway through my workday. When attempting to restart it, all warning lights came on on the dashboard and I could see white smoke coming out of the exhaust pipe while the car shook. I had it towed to the nearest Hyundai dealership and they confirmed it was broken fuel injector(s). I do not have the broken piece to show as it is with the dealership. It has not been examined by police or insurance. No warning lights came on until after the car had suddenly slowed to a stop and I attempted to restart it.

Filed Aug 20, 2026 · Brakes, Driver assistance · NV

When the vehicle in front of me stopped quickly, I braked quickly but did not hit the car. At that time, all the lights on my dashboard went off and were still on when I took the car to dealer for a diagnosis.

Filed Jul 23, 2026 · Driver assistance, Electrical · WV

All the warning lights in the day lit up. Brake, LDWS, AEB, outside air temperature won’t read and the a/c blows hot. $486 to diagnose at dealer and they state that it’s an electrical issue due to a bad vacuum pump. I can’t get an answer as to whether the vacuum pump safety campaign was completed or not. Dealer wants $1500 to replace.

Filed Jun 26, 2026 · Electrical, Transmission · 7,500 miles · DC · crash · 1 injury

The contact owns a 2025 Hyundai Tucson. The contact stated that while in reverse, several warning lights illuminated on the instrument panel, and the vehicle suddenly reversed without depressing the accelerator pedal and crashed into a light post. The air bags did not deploy. There were no injuries sustained. The contact sought medical attention after being overwhelmed by the experience. A Police report was not filed. The contact was able to drive the vehicle, and the vehicle was taken to the dealer, and the front-view camera was updated; however, the dealer was unable to determine the cause of the failure. The vehicle was taken to Imperial Body Shop to repair the body damage. After the software update was performed, the contact became aware that the vehicle failed to turn off immediately, and several attempts were needed to turn off the vehicle. On another occasion, the contact was able to turn off the vehicle; however, the engine continued to run. Several attempts were needed to turn off the vehicle. The manufacturer was made aware of the failure. The manufacturer opened a case for the failure. The failure mileage was approximately 7,500.

Filed Jun 9, 2026 · Lights · WI

main instrument cluster and Heads-Up Display (HUD) randomly flickering, turning completely black with a "No Signal" message, or triggering all dashboard warning lights.

Filed May 27, 2026 · Driver assistance · NJ

Multiple warning lights on the dashboard, including SRS , tcs, ABS , all lights stay on even after turning the vehicle off. Systems don't work, such as lane departure, collision avoidance & ABS don't work. Spoke w/ koeppel hyundai, mentioned the issue, but was told that that isn't part of the recall, therefore they will not adress the issue. It's frustrating , don't feel safe driving the vehicle. Will take legal action if any accidents will happen due to an issue that the dealer is refusing the adress.

Filed May 12, 2026 · Electrical, Engine · FL

Vehicle stalled approximately 15 times between April 17 and May 4, 2026, including once on Interstate XXX at approximately 50mph with minor children ages [XXX] and [XXX] in the vehicle. The oil and battery lights illuminated simultaneously at each stall. Diagnosed as ABS module failure first, then left front wheel speed sensor failure on the 2nd occasion, both confirmed by a Hyundai dealership. Multiple warning lights illuminated, including check blind spot and anti lock brake system messages on the dashboard BUT no error codes following the 2nd repair. The vehicle has been inspected and repaired twice by the manufacturer’s dealership with a 3rd repair currently pending as of May 11, 2026. An open case has been filed with Hyundai Motor America regarding this issue. Issue remains unresolved and the vehicle is still at the dealership. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)