2021 Hyundai Tucson: ABS light or ABS activating

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)

Filed Apr 29, 2026 · Electrical · OH

In October 2025, while the vehicle was still under Hyundai’s 5-year warranty, an authorized Hyundai dealership diagnosed a significant electrical failure affecting the ABS/ESC system on my 2021 Hyundai Tucson. The vehicle was experiencing multiple dashboard warning lights, intermittent key fob malfunction, alarm system failure, and progressive electrical instability affecting safe operation. Dealer diagnostic trouble codes included C120001, C167581, and C164202, with technician notes stating “ABS sensor wiring harness fault found.” The dealership recommended replacement of the wiring harness, estimated at approximately $12,000, but no warranty repair was performed. Since the initial diagnosis, the condition has continued to worsen with additional warning lights and ongoing ABS/electrical system instability. The issue remains unresolved and continues to affect vehicle safety.

Filed Nov 17, 2025 · Brakes · AL

The issue started just before my vehicle had 60,000 miles on it and only occurred every once and a while but, now it happens more often. When braking at low speeds my car makes a hissing/buzzing noise and the pedal goes soft. We got to a dealership when it had 60,420 miles on it. The dealership had it for two weeks saying they have never experienced anything like this issue before. They even contacted Hyundai Tech to help them. No warning lights ever came on and that was my concern. Finally after two weeks they said my tone ring on my driver's front side was bad and causing a false 0 reading. When I asked why the warning lights didn't come on they told me everything was working like should. Then after I pointed out that they said it was reading a false zero they were like no that must have been a typo its reading four miles under the rest and that's causing the abs system to activate. I'm from Ohio so I know what my abs sounds and feels like when it activates. It's a pulsating feeling not a soft pedal. When my abs truly activates my traction control light comes on. As I stated no lights have ever come on. This issue causes longer stopping times. There hasn't been any accidents because my wife and I try not to drive it. It's going to a third shop to try and figure out the issue. Yes the vehicle is available for inspection.

Filed Apr 26, 2021 · Brakes, Engine · 1,100 miles · NY

Received recall notice that the possibility exist that a battery compartment fire could happen. Recall notice also stated that vehicle should 'not be parked indoors.' the recall notice also stated 'an electrical short in the ABS module could increase the risk of an engine compartment fire.' so we don't dare park the car in our garage since it is located beneath our home, thereby leaving a new car out in the elements at all times. In addition as senior citizens our safety and well being are being jeopardized as we cannot enter our vehicle from inside our home, but must enter from the street in all types of inclement weather. We called the service department but did not receive a call back. We reached out to our salesman and he was the one who gave us information on the recall and added our name to the repair list. However when we didn't hear from them with an update we took a drive to the dealer. During the visit to the dealer in march we were told the piece is on back order. Today I called the service department and was told there is no date yet to fix this recall. How long are we expected to wait for the 'fix' and to leave our car outside?

Filed Mar 25, 2021 · Brakes, Electrical · CA

In the initial the federal safety agency tucson recall, dated september 4, 2020, the only 2021my tucson vehicles to be included were those manufactured through 3/31/20 and specifically on 6/23/20. Once the problem with the ABS module had been identified and confirmed, and the recall issued, hyundai continued to manufacture, and sell tucson vehicles with the same known safety flaw. Rather than shut down the production line until corrections could be made, hyundai continued to 'investigate' the problem while 2021my tucson vehicles manufactured after the end of august 2020 continued to be sold. Hyundai continued to sell these cars while at the same time admitting in the federal safety agency documents that the company was 'unsuccessful in determining the exact root cause' of the problem. Instead, the company 'concluded that the risk of an electrical short resulting in a fire could be mitigated [not eliminated] by limiting the operating current in the ABS module through a lower amperage fuse.' it wasn't until november of 2020 that a production change was implemented. Then, in december of 2020, the september recall was expanded to include vehicles manufactured through november 2020.

Filed Mar 18, 2021 · Brakes · CA

Hyundai tucson anti-lock brake system modules corrode internally and cause an electrical short and fire. They issued a recall, and their notices say it will take less then one hour to perform installation of new ABS modules, yet all dealerships say it takes half a day. I just visited a dealership who didn't even have the parts to do it!!! And each service department only schedule 5-7 recalls per day. So all dealerships are booked for months and months out. Leaving us all with this very dangerous defect, threatening to burn down our homes. This is not a recall being performed in a timely matter considering how potentially serious it is. They should be banned from selling any more vehicles until this problem is completely fixed. So what are all of us consumers who can't get this recall fixed supposed to do if our vehicles suddenly bursts into flames?

Filed Mar 13, 2021 · Brakes · CA

Hyundai dealerships won't perform recall on dangerous ABS issue that causes engine compartment fires. They say to park outside and away from structures, but dealerships say they are only allowed to perform 7 recalls a day because they take "4 hours" but the recall paper work says it should take less then 1 hour. So they are booked for months and months leaving us without a way to get the dangerous fire causing issue fixed. This is a serious enough issue, that should be priority even before their sales. It's disgusting what hyundai has been getting away with concerning their faulty vehicles.

Filed Jan 11, 2021 · Electrical · MD

Dear sir: "hyundai recently told owners of newer tucson vehicles not to drive their recalled suvs if the antilock brake system (ABS) warning light comes on, and to keep the vehicles parked outdoors so they don't catch a house or garage on fire."this particular hyundai dealership in question here has never mentioned it to me even though the sales agent ([xxx]) was asked by my friend that was with me to assist me with/help me out in dealing with the negotiation that is, always, a common practice when one wants to buy both used or new car. I was then, unexpectedly, advised by the next day, by my friend, about this unfortunate and extremely bad news; of course, after a thorough research, to find out whether my new car (2021 hyundai tucson SUV was recalled by the authorities or not. From what he told me, he, simply, plugged in the VIN number ([xxx]) and did the searching. The result was very serious and life-threatening for both myself and my daughter.I will be looking forward to hearing from you soon on this matter of great importance to me as well as my daughter and family members. In addition, I want you to, please, communicate with me through email or regular mail. I have the intent to seek for an attorney to, directly, take over my case and deal with the dealership in question here. I, further notify you that my friend is not going to bring you the $5,000 that he promised to you. That ($5,000) will be used towards the attorney fee. Ps this car in question was bought on 01/09/2021 sincerely yours, [xxx] information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).