Hyundai
Sonata

While driving at approximately 70MPH on the highway, my 2014 Hyundai Tucson Limited suddenly locked up with no warning lights, no noise and no prior symptoms. The engine completely seized, causing immediate loss of power. I was barely able to coast off the highway exit to a final stop on the feeder shoulder, in a desolate area. The vehicle has always been properly maintained and is in excellent condition. Upon research, I learned that Hyundai has known of internal engine defects caused by metallic debris left from manufacturing since 2010, which can cause bearing failure and engine seizure. My Tucson's failure matches the same pattern described in Hyundai's Theta II engine recall and warranty extension campaigns. This sudden failure created an extremely dangerous situation at highway speed and possibility of injury while being stranded on an open road. Many owners, myself included, were never properly notified of the risks. I am filing this report because this incident represents a serious safety defect and potential recurrence among similar vehicles that may not yet be covered by recall. I respectfully request that the National Highway Traffic Safety Administration investigate this issue and ensure Hyundai expands its recall and warranty coverage to include affected 2014 Hyundai Tucson Limited vehicles exhibiting this defect that was well-known to the Hyundai Corporation. Date of Incident: October 23,2025 in Houston Texas. Vehicle towed to Hyundai dealer which diagnosed Engine Seized and currently awaiting Warranty Extension Approval (TXXC/TXXI)

The contact owns a 2014 Hyundai Sonata Hybrid. The contact stated while driving 60 MPH, there was a knocking sound coming from the engine compartment, after which the vehicle lost motive power. The contact was able to pull to the shoulder of the roadway, where the vehicle stalled and failed to restart. Several unknow warning lights were illuminated. The vehicle was towed to an independent mechanic, who diagnosed a failure with the rod bearings and observed metal shavings inside the short block. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 17V226000 (Engine and Engine Cooling) however, the VIN was not included. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 134,000.

The contact owns a 2014 Hyundai Sonata Hybrid. The contact received notification of NHTSA Campaign Number: 23V651000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that while attempting to start the vehicle the brake pedal went to the floorboard. The contact replaced the brake pads; however, the failure persisted. The dealer was made aware of the failure and confirmed that parts were not yet available. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 172,453. Parts distribution disconnect.

The contact owns a 2014 Hyundai Sonata Hybrid. The contact received notification NHTSA Campaign Number: 23V651000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The local dealer was made aware of the issue and confirmed that parts were not available. The manufacturer was not notified of the issue. The contact had not experienced a failure. VIN tool showed no open recalls.

The contact owns a 2014 Hyundai Sonata Hybrid. The contact received notification of NHTSA Campaign Number: 23V651000 (Service Brakes, Hydraulic). The contact stated that while driving approximately 30 MPH, the vehicle stalled. The vehicle was not able to be restarted. The vehicle was towed to an independent dealer where it was diagnosed and determined that the battery fuse needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 60,000.

The contact owns a 2014 Hyundai Sonata Hybrid. The contact received notification of NHTSA Campaign Number: 23V651000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

The contact owns a 2014 Hyundai Sonata Hybrid. The contact received notification of NHTSA Campaign Number: 23V651000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. VIN tool confirms parts not available.

The contact owns a 2014 Hyundai Sonata Hybrid. The contact stated that while operating the vehicle, the message "Brake System Malfunction - Vehicle Will Turn Off for Safety" was displayed on the instrument panel and the vehicle turned off. The vehicle was towed to the local dealer who determined that the ABS module was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was offered. The contact was informed that the VIN was included in the NHTSA Campaign Number: 23V651000 (Service Brakes, Hydraulic) however, the remedy was not yet available and did not include replacement of the ABS module. The failure mileage was 160,000.