Software problems of the 2015 Hyundai Sonata

The recall of the ecu flammable software recalled was fixed at Hyundai tysinger dealership in hampton va July 2020 when I retrieved the car the tpms sensor was illuminated they assured me the software pkg they upgraded and other services provided were not related to that happening. I had a second option at rnr hampton va who ensured me that replacing each tire valve would fix the issue. They charged me 400 on 9/16/2020 for that service when the car was picked up the tpms sensor needed to re-set itself and driving it with it was fine - it would ask to prompt me to re-set it and / or do it automatically the next 24 hours - it did not do that - it is Jan 18 2021 I just had my diagnostic for the tpms sensor for this 2015 Hyundai Sonata at hall automotive they are saying all four valves and software that the valves placed with rnr were not complaint with Hyundai software and should of known that - it states that prohibition of 49 usc 30122 are to be integrated and compatible before proceeding the dealership - rnr and original dealership should all me accountable for this 2000 error.

Car ,hybrid, died at a light. Warning light and buzzer alarm !charging system error do not drive. Was able to restart car. Stopped at a store ,let it sit. Restarted again engine light stayed in got home where I was temporarily staying , waited a few hours restarted no warning lights. Was a Friday, messaged service mgr , he was off called Monday car brought in Tuesday. Error code off on board diagnostics was p1b70 . They loaded software update 19 hc 002h service bulletin. Car 2015 this problem was a issue with earlier years. . Still around unfortunately. Should have been a safety recall . . Cars are dying while driving. Dealer expressed opinion that this should resolve issue if not call immediately.

My Sonata has started stalling and shutting down without warning. The first time it happed was Dec 12th. I just finished accelerating from about 35mph to 60mph. There the vehicle made a loud thump and the engine shut down. Seconds later I lost power steering, dash lights, and headlights. The car restarted without issue. The same problem happened on Dec. 16th while traveling at a constant 30mph. I experienced the same symptoms as before, except the vehicle did not shake or create a loud noise before shutting down. Mileage was at 75980. Temperature was in the 20's. I took the car do the dealership and they could not find anything wrong or recreate the problem. The third time this has happened was Dec 29th. I was traveling at 20mph and coasting to a stoplight. It was 19 deg outside and the mileage was around 76800. So far the car has not shut off when the weather is above freezing. Lower temps might be contributing to the problem but not likely to be the primary cause. In all cases the car was at operating temp and was running for more then 30 min. It has not yet shut off while accelerating. Only maintaining speed or coasting. About a two months ago the dealer did a software update on the vehicle due to a claimed recall. The issue started about 2-3 weeks later this is definitely a safety issue since it happens without warning. I did find some other complaints similar to this while searching.

On three different occasions the dash flashed "check tpms" meaning check air in the tires. On all 3 occasions the car would not go into gear. The next occasion the check tpms came on so I put air in the tires and drove around the corner to reset the tire pressure monitor (computer). Upon coming around the corner to park the car the check tpms warning came on again the car powered down and I coasted to park. The next morning I called the dealership to have the car checked I was told from jared that the technician did a software update and that " he thinks, maybe, might have fixed the problem. At this point I did not pick up the car because they could not guarantee the car had been fixed and that it will not die while driving around Hyundai service department said they were not sure because they could not duplicate the problem I had with the car. I left the car there contacted hyndai corporate where they opened a case #9327831 . . They in turn had a fast team working on my car and they are not sure if the car is fixed or not because they could not duplicate the same problem. The have had my car for a month now still have not been able to find out what the problem is. I was told it does not fall under lemon law unless the car does the same thing again. But I do not know if the car is fixed 100% it only has 12,513 miles on it. Car would not go into drive the gear shift would not move to where I could drive the car.