Tl* the contact owned a 2018 hyundai sonata. While the vehicle was stopped at a traffic light, the accelerator pedal was depressed; however, the vehicle failed to respond. On a second occasion, while exiting the driveway, the accelerator pedal was depressed to the floorboard, but the vehicle failed to exceed 2 MPH. In addition, the check engine and tire pressure monitoring system warning indicators illuminated. The vehicle was taken to edmond hyundai (located at 14137 n broadway ext, edmond, ok 73013, (405) 696-4950) where it was diagnosed that the fail had gone into limp or fail safe mode. The contact was also informed that an unknown cable was loose. The vehicle was not repaired. The manufacturer was notified. The contact traded in the vehicle. The approximate failure mileage was 4,000.
2018 Hyundai Sonata acceleration complaints
Page 2 of 2: complaints 11 to 19 of 19, newest first, as owners wrote them.
Tl* the contact owns a 2018 hyundai sonata. While driving 60 MPH, the vehicle became sluggish, decelerated, and failed to accelerate above 40 MPH. In addition, the check engine indicator illuminated. The vehicle was taken to napleton's valley hyundai (4333 ogden ave, aurora, il 60504, (630) 851-2500) where it was diagnosed that the wire harness needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and case number: 15704477 was provided. The failure mileage was 19,000. The VIN was not available.
I own this 2019 sonata since 1/16/19. Was runing good at the first. But couple times start showing the engine light for seconds. But on april sunday 14 2019 my car shows the engine light and the tire control stabilizer at the same time then the car start shaking lossing speed,the brakes getting hard and power steering. . Lucky I went at 10mph to 15mph.the vehicle will be placed in a temporary engine protection mode with reduced power and acceleration. No speed no acceleration then I park in a parking lot for towing at the nearest hyundai dealership. Technitia found code( p0638 ) active code and (p211935002a00 throttle body carbon cleaning- adjustment and found rubber grommet stuck in the throttle body roved grommet. This cause trouble with the intake and injectors making the car limp and state in protection mode. I have lucky I wasn't in the freeway at 55,60 to 65 MPH. O can be a different risk and dangerous for me and others drivers. Please take this note seriously before something worse can happen to others drivers . Thank you so much.
I have been notified my wife's car needs the hyundai service campaign number 953 performed on her car. See below link. Https://autoservice.hyundaiusa.com/campaign953/micrositetemplate/micrositetemplatevinvalidate/3402 my concern is if this software update is performed on her car what will happen when this car goes into the safety mode? If this car slows down and reduces power with no warning what may happen? What if my wife is pulling out in traffic and the car goes into the engine safety mode with oncoming traffic? I fear once the car goes into the safety mode with reduce power and no adequate warning she me be hit by another vehicle. What measures has hyundai taken to ensure a driver has adequate warning of the vehicle going into safe mode so they can get out of harms way of the flow of traffic to ensure they will not be hit before the vehicle goes into safe mode and reduces power? All I am trying to do is prevent a potential accident when this car goes into safe mode.
Tl* the contact owned a 2018 hyundai sonata. While driving approximately 5 MPH, the vehicle independently accelerated. The contact depressed the brake pedal, but it failed to slow down or stop the vehicle. The vehicle crashed into a palm tree. An incident report was filed, but not a police report due to the fact that there was no immediate injury. The contact suffered a sore neck and a possible whiplash. The vehicle was towed to an independent facility. Kearney mesa hyundai (4797 convoy st, san diego, ca 92111, (858) 278-7100) was contacted and a voice message was left. The manufacturer was not contacted. The cause of the failure was not determined. The approximate failure mileage was 500. *tt consumer stated brake pedal was pushed multiple times and she did seek medical attention.
Tl* the contact owns a 2018 hyundai sonata. While driving at low speeds, the vehicle unintentionally accelerated and crashed into a pole. The air bags deployed. A police report was filed and there were no injuries. The vehicle was towed to carbone honda bennington (751 n bennington rd, bennington, vt 05201, (802) 447-3321), but was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 8,800. *dt updated 11/30/18
Purchased new 2018 sonata sel model in california. While driving, the transmission starts to hard downshift when the brake is applied. I found out that this hard downshifting and jolting/thumping of engine and transmission only occurs when coming to a stop at speeds between 10 to 15mph. It can be described as follows, after the brake pedal has been gently applied and lightly released but then the car itself applied its brake again. It terrifies the driver's driving conditions, mentally and physically.
Tl* the contact owned a 2018 hyundai sonata. While driving approximately 35 MPH, the accelerator pedal became stuck. The contact could not stop the vehicle due to the stiffness of the brake pedal. As a result, the contact crashed into the front passenger door of another oncoming vehicle. All of the air bags deployed. A police report was filed. Both drivers sustained injuries that required medical attention. The vehicle was towed to an independent mechanic where it was deemed a total loss. A dealer and the manufacturer were not made aware of the failure. The failure mileage was approximately 10,000.
Tl* the contact owns a 2018 hyundai sonata. While operating the vehicle, the automatic emergency braking system malfunctioned. On several occasions, the vehicle failed to automatically stop when a second vehicle was present. The failure occurred while driving in reverse and while driving at highway speeds with the cruise control activated. The vehicle was taken to napleton hyundai glenview (1620 waukegan rd., glenview, il) and the contact was informed that the failure was normal. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 400. *tt consumer stated braking works when car has cruise control activated, when relying in "aeb" nothing happens. Vehicle purchase date should be on or before incident date updated 9/21/18
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