2014 Hyundai Sonata

Summary of Event: This vehicle was brought to an authorized Hyundai dealership for a mandatory safety recall engine replacement under the Theta II Engine Recall Campaign. The dealership successfully installed a replacement engine provided by the manufacturer. However, the dealership and Hyundai Motor America are now refusing to return the vehicle to me in a functional, safe condition. Safety Hazard & Defect: The dealership states that the replacement engine shipped by Hyundai is mechanically and physically incompatible with the vehicle's original, factory-installed high-pressure fuel pump (HPFP). In an official written correspondence from a Hyundai Motor America Corporate Case Manager, Hyundai explicitly documented that: "dealership stated that it is not safe to drive the vehicle with old fuel pump." Despite acknowledging that the vehicle is now in an "unsafe to drive" condition due to the mismatched replacement parts provided by the manufacturer, Hyundai Corporate and the dealership are refusing to complete the safety recall remedy unless I pay $1,500 out-of-pocket for a new, compatible fuel pump.

My 2014 Hyundai Sonata experienced a failure of the transmission shift cable connection, the same safety-related defect addressed by Hyundai Recall Campaign 123 (NHTSA Recall 14V-434). The gear selector stopped functioning correctly. Although I could physically move the shifter using the shift-lock release, the dashboard continued displaying Neutral even when I selected Park. The vehicle would not start because it was not recognizing the correct gear position. This malfunction raises serious safety concerns because a failure of the shift cable connection can cause the transmission’s actual gear position to differ from the driver’s selected position, potentially creating an unintended vehicle movement or rollaway hazard. On September 4, 2026, Courtesy Hyundai Tampa, an authorized Hyundai dealership, inspected my vehicle and diagnosed the shift-cable connection failure, confirming the problem I had reported. Hyundai Motor America verified that Recall Campaign 123 had previously been completed on my vehicle on September 16, 2014, when it had approximately 13,000 miles. Despite that prior recall repair, the same type of failure occurred again at approximately 187,000 miles. Hyundai refused to perform another recall repair at no cost, citing the previous completion of Campaign 123 and the vehicle’s expired warranty. Hyundai provided this denial in writing under Corporate Case #43215357. Because the dealership quoted more than $1,000 for the repair, I subsequently had the vehicle repaired at an independent repair facility. I am concerned that the original recall remedy may not have permanently addressed this safety defect. I request that NHTSA investigate this recurrence and determine whether the effectiveness of Recall Campaign 123 requires further review. No crash or injury is being reported in connection with this complaint.

Shortly after we bought the vehicle in 2021, my 7 year old daughter (who weighed about [XXX] at the time) got in the car through the driver side rear door and closed it normally. When we got home, the door would no longer open and has not opened now for 5 years. A mechanic said it would cost more than $1400 to repair because he would have to remove the door paneling from the inside of the vehicle to even diagnose what the issue is. If we were to get into a car accident, having a door that will not open is a significant safety concern. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I was driving on the freeway about 100 miles outside of Boise, ID when the vehicle went into limp mode and a flashing check engine light came on. I had it towed to the Hyundai dealership in Boise where they ran a diagnostic check and it came back with a P1326 code, which is the issue related to the engine/ball bearings. They said it passed the bearing clearance test (BCT) so they updated the software and gave the car back. I picked it up a week later and while driving it from Boise to Salt Lake City (where I live), it went into limp mode again with a flashing check engine light. This happened about 100 miles north of Salt Lake City. I had it towed to a dealership in Murray. They indicated it passed the BCT again, but they replaced the knock sensor and did an oil change and gave the car back. I picked it up, and the next day, while on the freeway, the same thing happened again. I took it back to the dealership. They indicated the knock sensors they just installed the day before needed to be updated, so they updated the software for the knock sensors. I just picked it up, and within 45 seconds of being on the freeway, it went right back into limp mode with the flashing check engine light. This has happened 4 times now, on the freeway forcing me to immediately get over, and I have almost gotten into two separate accidents because of this. Hyundai says they will not replace the engine because it keeps passing the BCT. The vehicle is not safe to drive and it is likely causing irreparable damage to the other systems of the car.

The contact owns a 2014 Hyundai Sonata. The contact stated that while driving 60 MPH, a bystander notified the contact that the brake lights were inoperable. An independent mechanic was contacted. The vehicle was taken to an independent mechanic to be diagnosed and determined that the brake light housing needed to be replaced. The brake light housing was replaced; however, the failure persisted.

The contact owns a 2014 Hyundai Sonata. While the contact's wife was driving 65 MPH, the engine seized. The vehicle rolled to the shoulder of the road. The driver attempted to restart the vehicle, and the vehicle started. The contact stated that the accelerator pedal was depressed; however, the vehicle failed to accelerate. The vehicle failed to accelerate above 25 MPH, and the engine shuttered. The vehicle was driven to the shoulder of the roadway. The vehicle was towed to the residence. The dealer was contacted by phone and made aware of the failure. The vehicle was towed to the dealer. The dealer requested that the contact provide a fleet email associated with the VIN from Enterprise, which was the previous vehicle owner. The manufacturer was contacted by phone but provided no assistance. The failure mileage was 141,000.

Me and my friends are actually going to a trip on three cars. And I am the only one driving my car. All of a sudden when I am on US Highway 82. It started smoke. Immediately I tried to pull over. With in seconds it started fire. I inhaled lot a of smoke. I am a asthama patient so felt dozy immediately. Somehow I immediately came out of the car. I called 911 and whitesbore pd and fire engine team immediately arrived. But with in that time the front hood completely burnt and front seats as well.

The vehicle suffered an abrupt, internal engine seizure while operating in active traffic at highway speeds. This sudden loss of power created an immediate crash hazard, as the vehicle decelerated rapidly in the travel lane, narrowly avoiding a rear-end collision and putting my family and other motorists at extreme risk. The vehicle was towed immediately to an authorized Hyundai dealership service center where it is currently awaiting the physical recall inspection. Prior to the complete engine failure, there were no warning lights, abnormal gauge readings, dashboard messages, or noticeable performance symptoms. The engine seized completely without warning. The vehicle has an open, uncompleted Federal Safety Recall 162 (NHTSA Campaign Number: 16V729000) for this exact engine manufacturing defect and bearing failure.

I am submitting this complaint because I believe this issue presents a serious safety concern. My 2014 Hyundai Sonata experienced a failure related to the steering angle sensor, causing the ESC, ABS, and traction control warning lights to illuminate while driving. As a result, these important safety systems lost functionality and were no longer available to assist in maintaining vehicle stability and traction during normal driving conditions. This failure occurred without warning and required replacement of the steering angle sensor, followed by a required calibration. A critical steering-related component should not fail under normal driving conditions, especially when its failure can disable multiple electronic safety systems. Drivers may not immediately realize that these systems are no longer functioning, increasing the potential risk during emergency maneuvers, wet road conditions, or sudden avoidance situations. While researching this issue, I found that many other Hyundai owners have reported similar steering and electronic stability control problems. I respectfully request that NHTSA investigate whether steering angle sensor failures, related steering system components, or the associated calibration requirements represent a widespread defect affecting 2011–2014 Hyundai Sonata vehicles. If this issue is determined to be common, I ask that Hyundai be required to address the defect through an appropriate recall or extended warranty program so owners are not responsible for repairs involving a critical vehicle safety system.

The check engine lights blinking, it overheats and it shuts down.

I was driving my 2014 hyundai sonata that I only had for 3 months when it just quit on me. I pulled over and seen when white smoke was coming from the wires.

Updated NHTSA Complaint DraftVehicle Information: 2014 Hyundai SonataVIN: [XXX] Incident Date: XXX Description of Safety Defect:While driving on XXX, the vehicle's engine experienced a catastrophic mechanical failure and completely shut off without warning, causing an immediate loss of motive power. This sudden engine stall created an extreme, hazardous traffic safety risk.A subsequent professional inspection revealed that the vehicle's odometer had been illegally rolled back and tampered with by the selling dealership (Johny's Auto Center in 120 bleu hill ave Roxbury, MA) 02119 prior to purchase. The true, undocumented mileage of the engine is significantly higher than indicated, directly causing this sudden component failure. I am reporting this incident both as a critical vehicle safety defect and as a case of illegal odometer fraud. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I am submitting this complaint regarding a serious safety issue involving my Hyundai Sonata. While driving under normal conditions, my vehicle suddenly entered a low-power ("limp") mode without warning. The vehicle would not accelerate beyond approximately 30–35 mph, creating a potentially hazardous situation in traffic. At the same time, the check engine light began blinking. The sudden loss of power significantly reduced my ability to maintain traffic speed and safely maneuver the vehicle. This condition could have increased the risk of a rear-end collision or other accident. I brought the vehicle to an authorized Hyundai dealership (Fred Beans Honda Of Abington PH# 215-392-9020) for diagnosis. The dealership confirmed that the vehicle stored Diagnostic Trouble Code (DTC) P1326, related to the Knock Sensor Detection System (KSDS). According to the dealership, the vehicle entered limp mode as a result of this fault. The abrupt reduction in vehicle power and speed occurred without sufficient warning and created a safety concern. I am reporting this incident so that NHTSA can investigate whether this condition represents a broader safety defect affecting Hyundai Sonata vehicles equipped with the KSDS system. Vehicle Information: Make: Hyundai Model: Sonata Model Year: 2014 I request that NHTSA review this issue and evaluate whether additional action is warranted regarding vehicles experiencing DTC P1326 and associated limp-mode operation.

Vehicle Information: Year/Make/Model: 2014 Hyundai Sonata Mileage: less than 120,000 miles Ownership: Second owner Complaint: I am filing a complaint regarding a serious engine failure in my 2014 Hyundai Sonata. My vehicle experienced issues beginning with a faulty knock sensor, which escalated into complete engine failure. This issue appears to be identical to problems that have already been identified in recalls involving similar Hyundai Sonata models. Despite experiencing the same symptoms and failure pattern, my specific VIN is not included in the recall. My vehicle has been well maintained, has under 120,000 miles, and should not have experienced a total engine failure under normal conditions. Based on the known recall issues related to engine defects and knock sensor failures, I believe my vehicle is affected by the same underlying defect. I am concerned that vehicles like mine are being excluded from the recall despite having identical safety-related issues. Engine failure while driving presents a serious safety risk, including potential loss of power, stalling, or inability to accelerate in traffic. I have had the car looked by a professional and advised of the engine failure and this is a common issue with this make and model.

I was driving my vehicle on multiple occasions in which the car started to alarm and say, "Check charging system" at which point the car stopped all together. Also, when the cruise control is engaged, it will turn off automatically. It doesn't matter the speed the cruise control is set at, it will turn off.

ABS module/brakes system goes into limp mode randomly, which causes brake malfunction, throwing codes c1233, c1234 and c1236. There was a recall repair performed by Hyundai about two years ago, however there was two options on NHTSA recall 23V651000/campaign 251. One was to replace a safety plug fuse issue, TSB 23-01-054H . That is the recall they performed. The other recall repair which they did not perform is to replace the ABS module. The Hyundai dealer says I must pay a $225 diagnostic fee for them established they need to do this recall repair . Does that sound correct to you?

The contact owns a 2014 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the steering wheel became inoperable. There was no warning light illuminated. The contact stated that after driving over a pothole, the steering wheel became difficult to handle, with a clicking sound coming from the steering wheel. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure, and a case was opened. The approximate failure mileage was 79,000.

1. Dash Board has several cracks especially over airbag. 2.The location and severity of the cracks raises concerns regarding the structural integrity of the dashboard during a collision and the potential for obstructed airbag deployment. 3.It has not been inspected. I plan to carry it to the dealer tomorrow. 4.There were no warnings. I just realized the cracks a few weeks ago. I had seen them prior but thought they were part of the design until they became more pronounced.

The contact owns a 2014 Hyundai Sonata. The contact stated that the vehicle failed to start. The vehicle was towed to the residence and was started. The contact stated that the failure was intermittent. The contact stated that while driving at an undisclosed speed, the vehicle stalled. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed with turbo charger failure. The contact was informed that the turbo charger needed to be replaced. The vehicle was not repaired due to the cost. The manufacturer was not contacted. The failure mileage was unknown.

I had gotten an engine back in 2021 because of a recall, and now the newer engine is burning all my oil up.