*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Engine
Warning lamp included oil for several months prior. I added oil often. No oil was ever seen under car or leaking in any way. Car had been serviced several times during the oil warning lamp warning. Nothing was ever found. I continued adding oil on a regular basis. Engine completely stopped in the middle of a busy street.
Oct 6, 2026Power train
Pulled out of a parking lot into the street and there was an unusual clunking noise coming from the drivetrain of the car. Had the car towed to the dealer for diagnostics. The diagnosis from the Dealer was the transfer case splines no longer are engaging with the transmission. This problem is already known to the Manufacture and for some reason nothing has been done to address the safety issue.
Sep 24, 2026Engine
ENGINE and RECALL NOTIFICATION MALFUNCTION: My 2015 Hundai Tuscon exerperienced a catastrophic engine failure/seizure while driving. Hyundai is denying an engine replacement under their extended warranty under the KSDS software update (Campaign 966) because the software update wasn't completed. However, Hyundai failed to notify me of this requirement; I purchased the automobile in Jan 2024. The KSDS recall was sent out in 2021. I recently received an official physical mailer from Hyundai Motor America titled 'IMPORTANT VEHICLE SERVICE REQUIRED' for my VIN. On that official notice, there is a dedicated section explicitly titled 'OTHER RECALLS AND/OR IMPROVEMENT REPAIRS NEEDED (associated…
Sep 3, 2026Engine
We have a 2015 Hyundai Tucson that we bought brand new. It has 80k miles on it. The car started using oil about three years ago. The dealer recommended replacement of the catalytic converter, which we did. The car continued to use oil, and the dealership had us replace the catalytic converter two more times, so three times total. Now the problem is occurring again and they are recommending replacement of the catalytic converter for a FOURTH time. We have filed a claim with the manufacturer and have been going in circles with the dealership for months. It is our position that the repeated catalytic converter failure is caused by an underlying motor issue, which should be covered by the…
Sep 1, 2024Power train
While driving on a US highway, the check engine light illuminated and the vehicle lost the ability to start/run normally, requiring the vehicle to be pulled off the road and towed to an authorized Hyundai dealership. Dealer diagnostic testing found the engine failed a bearing/performance test, consistent with connecting rod bearing wear. This failure mode â Check Engine light, DTC P1326, abnormal noise, or a no-crank/no-start condition caused by connecting rod bearing wear â is described in the manufacturer's own internal dealer service bulletin covering an engine warranty extension program for multiple engine families (Theta II MPI and Nu GDI engines) across several model years and…
Jun 21, 2026Service brakes, hydraulic
The contact owns a 2015 Hyundai Tucson. The contact stated that while driving at 50 MPH, the vehicle stalled without warning. The engine turned over but failed to restart. The contact related the failure to NHTSA Campaign Number: 22V056000 (Service Brakes, Hydraulic). The vehicle was towed to an independent mechanic shop and then to a local dealer, where it was diagnosed that the engine seized; however, the vehicle was not repaired. The dealer advised that there was no warranty coverage. The Better Business Bureau was contacted and informed that the warranty had expired. The manufacturer was contacted, and a case was filed, but a request for repair coverage was declined due to a failure to…
Apr 1, 2026 · 118,000 milesEngine
My 2015 Hyundai Tucson with the 2.4L engine developed a loud engine knocking sound while driving. The knocking became worse and the vehicle became unsafe to drive due to the possibility of sudden engine failure. The vehicle is currently at a Hyundai dealership and has been there for over a month. The dealership denied the warranty claim stating that a different engine component failed instead of the connecting rod bearing. This engine is part of the known Theta II engine defect issue that has caused engine failures in many Hyundai vehicles. A sudden engine failure while driving could result in loss of power, difficulty steering or braking, and could increase the risk of a crash. I am filing…
Mar 16, 2026Air bagsCrash1 injury
On March 13, 2026, I was operating my 2015 Hyundai Tucson when the steering locked up, causing me to crash into a tree head-on. In the course of this head-on crash, my airbags failed to deploy. As a direct result of my airbags not deploying in a serious car crash, my head hit the steering wheel, causing a confirmed concussion diagnosis of Post Traumatic Headache and Post Concussion Syndrome in a hospital emergency room. There were no lights or symbols on the dashboard prior to the accident. My car had a prior repair for a front end collision in a body shop and a replacement of the engine in a Hyundai dealership prior to the accident. My car is currently in a tow yard. There has been no…
Mar 13, 2026
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.
