Hyundai Tucson won't shift problems

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 14, 2026 · Engine · FL

While driving on the highway 65 mph in our 2019 Hyundai Tucson AWD, the vehicle suddenly experienced a severe power loss, loud engine knocking, engine light flashing, and the car in limp mode. This caused a terrifying hazard. We exited to safety, the car was towed and is at a Hyundai dealership. It pulled a diagnostic engine trouble code P1326 (Knock Sensor Detection System). The dealership confirmed the code, but is refusing to replace the engine under the Hyundai Engine II Class Action Settlement without an out-of-pocket 'combustion cleaning' fee, which, as seniors, we cannot afford on a fixed income. The dealership service manager told us that he requested Goodwill from Hyundai Corporate for the combustion engine cleaning. And because of a past denial, corporate denied it a 2nd time. So, we contacted our Hyundai Corporate case manager, who said our request for “the engine replacement” was still pending and in review by their team. She saw no denials, except for a loaner, which would be approved, upon repair approval. We added the dealership service manager on this call to discuss confusion about goodwill be denied by Corporate for the “combustion cleaning”. He said this case manager would not see the combustion cleaning requirement, because it was instructed by another department. His then pivoted the topic & said we received an estimate for combustion cleaning. My response “we never received an estimate & have no estimate in my email”. His response “I hate to use this word, but you’re a liar”. My husband then took the call saying “we did not receive an estimate in writing, although we had asked the tech for an estimate but nothing was final.” The service manager cut him off and said “we are done come pick up your car” & hung up. This dealership phone interaction needed to be included in this incident because now we are being put in grave danger as he is expecting us to pick up our un-drivable, unsafe & hazardous car with no concern for safety.

Filed Oct 13, 2026 · Acceleration, Engine · LA

While driving at highway speeds, my 2019 Hyundai Tucson SE suddenly loses acceleration and drops into a 30 mph 'limp mode' while the engine overheats. This creates an immediate highway safety hazard with an imminent risk of a rear-end collision. The vehicle also suffers from excessive oil consumption, requiring manual top-offs twice a week. The servicing dealership diagnosed a fuel system failure, quoting $5,847 to replace the fuel pump, fuel injectors, and oil gasket. Hyundai Corporate (Case #43358088) officially denied warranty coverage on October 12, 2026, falsely claiming wear and tear despite active TXXM 150,000-mile extended warranty framework protections. Furthermore, there is a data discrepancy: the dealership pulled diagnostic trouble code P0172, but corporate claims the vehicle threw code P0173 and is withholding the physical diagnostic printout behind a fee paywall.

Filed Oct 7, 2026 · Acceleration, Electrical · VA

While going down the highway at around 72 mph , my car went into limp mode. I was unable to accelerate, the brake and wheel locked. And then the engine light began flashing. The limp mode , non acceleration, and flashing engine light have happened twice before this instance. The first two times the pulled the P1326 knock sensor code and replaced it. Did the update, and sent me on my way saying it was fine. Now this most recent time (the 3rd time), the engine has failed. A CARFAX report says my car already had the engine replaced at 52k miles, meaning there’s 1 something internally wrong and 2 it’s still well within mileage warranty for another engine replacement. This car is extremely dangerous as it can literally stop in the middle of the highway. I went from 72 to about 15 mph in seconds, I was unable to get over or accelerate. It was terrifying. Now dealing with Hyundai - they don’t want to take fault.

Filed Sep 20, 2026 · Electrical · MA

Shifter malfunction, service immediately warning comes on. The car will not shift out of park and cannot be driven. It has happened 4 times now. No one has been hurt, but I have been stranded multiple times. The dealer couldn’t reproduce the issue the first time I brought it in, but they did second time I brought it in for the same issue. They replaced a part that was supposedly faulty, but the issue persists after the replacement. CAUSE : 42950R00 SHIFT BY WIRE (SBW) CONTROL UNIT ASSY 6064 1 42951-2D085 SBW CONTROL UNIT (N/ C) (N/C) FC: PART#: 42951-2D085 COUNT: 1 CLAIM TYPE: WAR There were no prior warnings. The error message has come on while I am mid driving on the highway, back roads or even just starting my car in the morning. In most cases I need to wait for the issue to just “self resolve”.

Filed Sep 9, 2026 · Electrical, Engine · NM

The vehicle unexpectedly entered 'Limp Mode' due to engine tracking code P1326. The vehicle severely restricts engine power and RPMs while driving on public roads, preventing normal acceleration. This creates a severe safety hazard as the vehicle cannot safely merge into oncoming traffic, accelerate away from intersections, or maintain basic road speeds, putting me at a high risk of being rear-ended.The fault is under Hyundai Theta II Txxm. I have been given the runaround by both hyunday corporate and the local dealer.

Filed Jul 29, 2026 · Engine · OH

Vehicle suddenly slipped into limp mode. Vehicle was then immediately taken to have code read. Code came back P1326. Was advised due to previous recall campaign(s) to contact Hyundai of America for guidance. Was told that vehicle needed to be confirmed per the BCT at any Hyundai dealership to which the agent scheduled the appointment myself and that i should get the other 4 recalls fixed as well. My spouse drove the vehicle there and that was our last true communication verbally with Hyundai of America. Vehicle barely made it to the dealership and then spouse was offered a ride home an hour and a half later without paperwork or any type of understanding other than it would take time for the service team to get it on the BCT. A week later I was told it would cost $250. We have argued that we were never told it would cost anything as it relates to this major recall nor the others and in fact it would be performed at zero cost. Then, a service manager stated that now the vehicle needed $10k worth of work and began having finance firms contact me that he said were employed by Hyundai but are not. Here we are a month later, and still no vehicle and we have contacted Hyundai of America numerous times and have all communications regarding such contact and have gotten nowhere. We have yet to actually speak to someone over the phone. We were assigned a case manager who is now on vacation. We're without an income now because after not having transportation to work my partner has lost his job, and we are in dire condition. Inside of my vehicle that this dealership is holding hostage is my infant’s car seat and a brand new catalytic converter. They have refused to communicate with me and supposedly with this case manager according to her emails. We are in need of help.

Filed Jul 2, 2026 · Electrical, Lights · IL

Good morning the problems I am having with my 2025 are very discouraging. Started October of 2025, my tire light illuminated stated the tires were low when they are all at correct specs when using an air guage to check. November of 2025 while driving at night the headlights suddenly shut off briefly then came back back on. January of 2026 while leaving work the transmission would not shift, held accelerator pedal to floor but could not go above 20 mph all the way home for 3 miles. April of 2026 the right side of navigation screen went completely black, shut vehicle off twice and on third restart the screen reilluminated. June of 2026 same thing with the screen going black. I have had my Tuscon at the local dealer here in my town for supposedly a repair that they state was a "coaxel cable" behind the dash that was fixed that was causing this issue. I also had the recall performed for the front view camera software update but it is still showing not completed. This is very frustrating to be having experiencing these kind of issues on this new of a vehicle. Clearly something is going on with the software or something and the dealer keeps telling me they are not finding anything wrong. I am a service advisor myself at a small independent shop so I understand the terms they are using but something needs to be addressed to correct the issues that I am having. It is scary when driving and the screen goes black or driving at night and losing the headlight functions. I would appreciate if somebody will look into this and reach out to me to get some kind of remedy for why this is happening. I am paying alot for this vehicle and to say I am satisifed is an understatement. I have purchased Hyundai as my choice of vehicle due to the quality, great warranties and good reviews from other consumers however I am seriously thinking of exploring alternative makes as I do not want to keep going through this. Plus the engine consumes oil. I have attached p/w for review as well

Filed Jun 12, 2026 · Acceleration, Engine · NC

The vehicle severely shudders, jerks, and hesitates from a stop and while making a turn, during both acceleration and deceleration, making it entirely unsafe to drive. The vehicle has been completely un-driveable for the past 6 days. The check engine light illuminated, and on 4/9/26, the dealer documented a failed transmission judder test and kept the car, issuing a loaner. A temporary software patch failed after two weeks. Upon return, the dealer reported they were unable to recreate the problem, recommended returning when the vehicle demonstrates the problem more frequently, and refused to mechanically repair the dual-clutch transmission under my active original-owner 100,000-mile powertrain warranty, basically instructing me to continue to drive a seriously un-safe vehicle. Most recently, a yellow dashboard warning light illuminated, and the vehicle entered a dangerous 'limp mode,' severely restricting power and struggling to move before the light cleared after cooling down. The vehicle is completely un-driveable and parked.

Filed Jun 10, 2026 · Engine · MA

The engine (connecting rod bearings in the 2.0L Nu GDI engine) failed. The vehicle entered limp mode with DTC P1326, then died on the road and the engine seized completely (will not turn by hand when attempted; only clicks on starter). It is currently at First Hyundai dealer in [XXX], under Repair Order #XXXand available for inspection. The vehicle suddenly lost power and died while driving on the road. This created a significant risk of an accident or being stranded in traffic. I was on a busy highway and almost got hit twice. There is also a known fire risk associated with this exact defect (oil leaking onto hot engine components), as stated in Recall 209 (the federal safety agency 21V727). The vehicle was towed to First Hyundai. They have documented the no-start/seized condition on Repair Order #XXX. A prior independent scanner reading showed P1326 before the code was cleared. The dealer has not performed the full diagnostic inspection (scheduled around June 11). Hyundai Corporate (Claim #XXX) has been notified but has not responded after multiple escalation emails. The vehicle first went into limp mode ("Engine Protection Mode") with DTC P1326 on the scanner. Shortly after, the engine died completely and would not restart. This occurred after Recall 209 (bearing/KSDS campaign) was completed on XXX. Additional Details: This is a known issue with premature connecting rod bearing wear. The dealer is refusing to provide a loaner/rental upon drop-off, which contradicts TSB 22-01-023H (Dealer Best Practices for P1326 vehicles). The vehicle has been inoperable since 6/4 ..with no resolution. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)