What 122 owners told NHTSA about the 2023 Hyundai Tucson Plug-in Hybrid

See attached document for complaint

NHTSA ODI 11576800

The contact owns a 2023 Hyundai Tucson. The contact stated that while driving approximately 40 MHP, the vehicle suddenly lost motive power and stalled. The vehicle was towed to the local dealer who diagnosed an engine misfire in cylinder #3. The cylinder #3 was replaced and the vehicle was repaired. The vehicle later experienced the same failure and was towed to the dealer who diagnosed that cylinder #4 was faulty. The cylinder #4 was replaced and the vehicle was repaired. The contact stated that the manufacturer had issued a TSB for the failure that included all four cylinders were faulty. The failure mileage was 15,000.

NHTSA ODI 11574211

The contact owns a 2023 Honda Tucson. The contact stated while driving 74 MPH with the cruise control activated, the Forward Collision Avoidance system activated, after which the Automatic Emergency Braking activated, causing a rapid deceleration to the vehicle. The contact was able to regain control of the vehicle by lightly tapping the brake pedal, deactivating the system. The vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to the dealer, who was unable to duplicate the failure but informed the contact that they would disable the Forward Collision Avoidance system pending a diagnosis. The vehicle was not repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 13,000.

NHTSA ODI 11573456

This Hyundai Tucson was 3 months old when the transmission started to shudder and miss gears. I immediately took it in to Ken Garff Hyundai and the service advisor drove the car and said nothing is wrong with the car and that the transmission needs to break in and sent me on my way. The Tucson did it again while in traffic and the vehicle would not go and I had to put my hazard lights on and let the car struggle in changing gears to get it off the road. The car was towed in to Peoria Larry Miller Hyundai and this was documented by that dealership of the car shuddering and that they thought it was from my insurance plug in device. I explained that the car did it before the plug in. I removed the plug in device and the car continued to shudder. On [XXX] while backing out of my garage the car began to shudder while in reverse and i continued down the road while the transmission refused to change gears. It almost sounded aa if the car was in neutral and the car would on go no more than 3mp. I had the gas pedal floored and the car would not go. I reparked the car back at my home and called Hyundai for a tow. The tow came and the tow driver stated that the seemed as if it is in neutral as he drove it up on to the tow truck. After getting the vehicle to the dealership i was told from the service advisor that this is an ongoing problem with Hyundai's dual clutch transmission and this sounds like the problem. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11571774

The contact owns a 2023 Hyundai Tucson. The contact stated that after placing the vehicle in park(P) and exiting the vehicle, the vehicle inadvertently rolled backwards. The contact stated that the vehicle was equipped with Automatic Emergency Braking; however, the system failed to activate, resulting in damage to the vehicle. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 22,000.

NHTSA ODI 11569138

Driving down the freeway at normal speeds and my panoramic sunroof literally just exploded, raining tempered glass all over the interior of the vehicle while I was driving. No evidence that it was caused by any road debris, objects, nor falling objects from the sky. I wasn’t driving under a bridge and no cars/trucks were immediately next to me nor in front of me. Traffic was flowing at normal speed. I wasn’t injured but was certainly startled and distracted for a moment to gauge what had just happened. The dealer is looking into it. Claims it could have been caused by a rock. That seems to defy the law of physics and the glass actually look like it bowed from the inside out as if too much pressure was being applied to the glass. Searches online seem to point to several class action lawsuits and plenty of reports of similar exploding sunroofs!

NHTSA ODI 11567125

Forward collision alert came on and brakes initiated while I was behind a car that was turning into a driveway. The car in front of me was almost all the way into the driveway. After that I drove approximately 200 feet and the collision alert warning came on, no vehicles were around me. The next day, as I was driving, a car was waiting to exit an apartment driveway, the collision alert came on. No reason for it. I took my car in to Hyundai on January 9, to have the oil changed and check the forward collision alert system. They told me they checked it, and could not find anything wrong, and recalibrated the system, and hoped that took care of it.

NHTSA ODI 11565645

Indicator/turn light is very low under bumper. It is not visible to the vehicle behind and around. Other driver think that I am not turning indicator light and they are upset and honking at me. Poor design and it could cause an accident.

NHTSA ODI 11565344

Engine would not accelerate after stopping at a store. Limped home at 15 mph. Engine light came on a few miles from home. Vehicle would not stay running the next morning and had to be towed to dealership. Problem was an injector that the seal had failed on causing the engine to flood with gasoline. Dealership stated they had seen multiple injector failures and replacement parts now have a different part number implying the injector has been redesigned. Hyundai refused to replace the other injectors as they had not failed yet (they did replace the one that failed). I went ahead and paid to replace the other three. I live in Montana. If I had lost acceleration going up a steep incline or in heavy traffic or car engine failed to stay on in remote area in sub zero temperatures it could have had detrimental consequences.

NHTSA ODI 11560374

On multiple occasions, my new Hyundai Tucson randomly deployed emergency brakes while traveling on highway. This created a dangerous condition as my vehicle started braking without reason which prompted vehicle following my vehicle to slam on their brakes.

NHTSA ODI 11559841

The contact owns a 2023 Hyundai Tucson. The contact stated that on three occasions while the vehicle was in park(P), the vehicle failed to shift into the intended gear. The vehicle was towed to a dealer where it was diagnosed and determined that the rear-view sensor needed to be replaced. The vehicle was repaired. On another occasion, while at a car wash the rear hatch opened inadvertently. On another occasion, while driving approximately 65 MPH, the Emergency Automatic Braking Display light was illuminated, and the vehicle slowed down inadvertently. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 500.

NHTSA ODI 11559099

head lights, I cannot see pedestrians walking on cross walk when driving they head lights seem kind of dim

NHTSA ODI 11558030

The contact owns a 2023 Hyundai Tucson. The contact stated that while driving approximately 70 MPH, the vehicle experienced phantom braking without another vehicle or object being nearby. The contact deactivated the system and was able to drive the vehicle safely. The contact stated that the failure recurred several times without warning. The vehicle was taken to the dealer who determined that the bracket supporting the sensor had detached, causing the system failure. The vehicle was not repaired. The contact deactivated the Forward Collision Avoidance system. The manufacturer was made aware of the failure and opened a case. The contact was referred to the NHTSA Hotline. The approximate failure mileage was 100.

NHTSA ODI 11552246

PEDAL ACCELERATOR NOT WORKED

NHTSA ODI 11550029

Vehicle randomly keeps accelerating past the set speed when cruise control is set. Problem was first noticed in March. Have a video of the cruise set at 69 mph and the vehicle continued to accelerate to 87 mph before I disengaged it. Vehicle has been to two different Hyundai dealers for the issue but were unable to duplicate or find the issue. One moth ago were on a road trip and the cruise would accelerate to 8-10mph over the set speed on the cruise control especially after cresting a hill ,then the adaptive cruise control would brake hard when approaching another vehicle. 0

NHTSA ODI 11548753

When I push the brake and push start button at the same time to start the vehicle, it will appear as if it is fully started. It is not until I put the vehicle in reverse that I notice the vehicle is not fully started. This happens on cold or hot starts and anytime of the day sometimes multiple times a day. The battery, malfunction indicator light, immobilizer, and engine oil pressure lights/lamps are on.The service department advisor did say my vehicle replicated but the vehicle was not hooked up to reader at the time. After that no service technician has been able to reproduce the problem. The vehicle has been to the dealership on 3 different occasions and I have provided them with a video.

NHTSA ODI 11548117

I was driving on the highway at 60/70 mph and there was nothing in front of my car. The brakes went on for a second stopping the car abruptly and I swerved. This happened once more. It then happened another time on a turn as I tried to regain control of the car it swerved from side to side and almost got into an accident or spun out.

NHTSA ODI 11547006

The contact owns a 2023 Hyundai Tucson. The contact stated while driving at 55 MPH with the cruise control activated, the Forward Collision Avoidance Warning system activated, and the vehicle inadvertently applied the automatic braking before releasing. The contact stated no other vehicles or objects were nearby. The Forward Collision Avoidance warning light was illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 2,000.

NHTSA ODI 11546592

The contact owns a 2023 Hyundai Tucson. The contact received notification of NHTSA Campaign Number: 23V526000 (Power Train) however, the part to do the recall repair was not yet available. The local dealer was made aware of the issue and confirmed that parts were not yet available. 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. Parts distribution disconnect.

NHTSA ODI 11546450

The contact owns a 2023 Hyundai Tucson. The contact stated while driving at an undisclosed speed, the ABS, check engine, low oil pressure, and Forward Collision Avoidance warning lights illuminated. The vehicle was taken to the dealer but was not yet diagnosed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 6,200.

NHTSA ODI 11545718

When driving the car and stopping at red lights, stop signs, or any other stops in traffic on roads and expressways, the car engine randomly dies and cannot restart between 3 and 10 mins. There is no warning when this is about to happen – the car engine simply dies and dashboard lights come on. There is no response from the car after shifting in Neutral or Park by pressing the start button with foot on brake. After some amount of time, the car will start. There is no warning before this is going to happen. The dealer (Patrick Hyundai) has inspected the car three times and has not been able to reproduce the problem as this happens randomly. They told me on my third visit to not bring the car back as they don't know what the problem is. The first time this happened was 4 months after I owned the car and has happened in excess of 6 times I now fear for my life when I drive this car. I was almost hit twice. I was stopped on a busy main street at a red light when the light turned green and all cars drove away and the truck approaching me assumed I would drive also but couldn’t because the car was stalled in the middle of the road. The truck veered away as last second to avoid my stationary car. The 2nd time was on expressway during traffic when stop and go driving was occurring and my car engine died again. As in previous case, vehicle behind me anticipated I would move forward like other cars but couldn’t and stopped inches from back bumper.

NHTSA ODI 11544788

I was driving at normal speed and all of a sudden the vehicle accelerated to a high speed. Took to dealer with all the other issues and they could not create the problem. They are trying to blame it on me for have two sets of mats. Also navigation unit is not the correct unit in car. When I apply the brake to stop it seems as if the frame is creaking.

NHTSA ODI 11544350

Trunk door opens by itself. This has happened after exiting vehicle at least 3 times when vehicle is parked. Has not happened while moving

NHTSA ODI 11541425

This is copy and pasted from your site. Hyundai does not have a recall ready, so I am filing a complaint. Is this the correct action? THE TRANSMISSION ELECTRIC OIL PUMP FOR THE IDLE STOP & GO SYSTEM (ISG) IN THE SUBJECT VEHICLES MIGHT HAVE BEEN ASSEMBLED WITH PRINTED CIRCUIT BOARDS (PCB) THAT WERE DAMAGED DURING MANUFACTURING BY THE OIL PUMP CONTROLLER SUPPLIER. A DAMAGED CAPACITOR ON THE PUMP CONTROLLER PCB COULD IMPACT ELECTRICAL OPERATION LEADING TO HEAT DAMAGE TO THE ELECTRIC OIL PUMP CIRCUIT BOARD, CONNECTOR, AND WIRING HARNESS. THE HEAT DAMAGE AT THE PUMP INCREASES THE RISK OF A VEHICLE FIRE IN ADDITION TO A POTENTIAL CONTROLLER AREA NETWORK (CAN) COMMUNICATION DISRUPTION FOR MULTIPLE ONBOARD CONTROLLERS. Thanks for your time.

NHTSA ODI 11536810

The contact owns a 2023 Hyundai Tucson. The contact stated while driving 45 MPH, the oil warning light illuminated. The contact pulled over and checked the oil level and became aware that there was no oil in the engine. The contact added oil however, the failure recurred. The vehicle was towed to the dealer and the dealer confirmed that there was no oil in the engine however, the cause of the failure was not found. The vehicle was not repaired. The manufacturer was contacted and stated that an oil consumption test needed to be performed. The failure mileage was 49,000.

NHTSA ODI 11532316