Software problems of the 2018 Hyundai Sonata

On five separate occasions while driving on the highway the vehicle will loose power and ability accelerate with a flashing engine light. These incidents have almost caused me to be rear ended three times because you are not able to accelerate above 60mph in rush hour traffic on a busy interstate and the ability just stops quickly with no warning. The vehicle also has been having the rpms drop to 0 and shoot back up while braking, and while driving it is tough to accelerate and then you will feel a noticeable �kick� and the rpms will shoot up drastically before it will accelerate. I have had 2 software updates done, a new wire harness, knock sensor cleaning and a knock sensor replacement. The engine code is always the same 1326.

June 2019, at about 11,500 miles took car in for an oil change and was told due to a recall, a software update needed to be done. At about 13,500 miles, engine light came in, car was jerking in motion on highway and lost power. Car would not accelerate last 62 mph. Car was serviced and block sensor wire harness was replaced. Car was returned and again while in highway engine light came on, lost power, car was jerking while child was in the car and while car was in motion. Car was serviced and block sensor was replaced. At about 18k miles, engine light came on while on highway and again with child in the car and car lost power and also was jerking while in motion. Car was serviced and engine replaced. 3000 miles later, again while in the highway, engine light came on, car lost power and was jerking and would not accelerate. Car was serviced and the following day, while on the expressway in chicago, the engine light came on and the car lost power and was jerking hard while in motion. Car was towed to dealership in rockford IL. After the 4th attempt to repair, lemon law claim was filed with Hyundai motor America which they denied due to mileage. This car is unsafe to drive. When it loses power there is no warning, no brake lights come on to notify cars behind, and while in the busy expressway in chicago was very dangerous. Also dangerous to have children in this vehicle. Hyundai motor America refuses to do anything but repairs and is ignoring the dangerousness this problem. This occurred all 5 times while the car was in motion. The code that reads for this is 1326 per the service records.

I was exiting the freeway and lost power, could not accelerate, blinking engine came on and on my screen it said "a possible condition with you engine control system has been detected. A full system check recommended to be done when convenient. Please contact you local dealership for an appointment" I was able to get to an area and have it towed. This could of been very scary and dangerous if I had still been on the freeway doing 70! I could not have driven it, it was missing and wouldn't get above 20-30 mph. I had the knock sensor software update done at the dealer the week prior to this happening. The dealer is saying the wiring harness needs replaced and will not be available until the end of the month! many on here have waited months I hope that is not the case. I've read numerous complaints on here and other sites that this is happening after the update. My car seemed fine before they did the update. Some people need new engines! how do I know that my engine doesn't have damage, I assume that Hyundai knows something since with the sensor update they extended my 100k warranty to 120k. It said the sensor is to help catch possible rod bearing wear and extends warranty must mean they expect engines to have problems! what is going on here and why isn't there any official recall? my car only has 20k I don't expect this kind of problem. I leased cars for many years but since I'm close to retiring I bought this wish I was still leasing so I could get out from under this in 2 years!.