I bought a 2018 hyundai gt sport 3 months ago. since day one car has been stalling and having a hard time starting. i was on the highway doing 75mph and the car just turned off no warning. i called the dealer in my area let them know about the starting issues and the stalling issues with the car i took it in to them few days later. they kept it for 3 days and told me sorry we do not know what to tell you. took it home and that day the car stalled on my way home. i took the car back to the dealer and they had it for 23 days and replaced the fuel pump and the injection system and still did not work. the dealer i bought it from replaced the battery, keys starter and alternator before i bought it and they did not tell me this car was having issues. the car is back at the dealer 3/7/2019 with stalling issues and rust build up on the bottom of the car. i have a case with hyundai and they keep telling me take it to another dealer 4 dealers later and nothing.check engine light came on flashing one day but went off and no codes found. this has been going on for about 21/2 months car is out of service now for a total of 26 days now including the days its been at the current dealer.
Car shut off while on the highway randomly started shaking. all lights turned on check engine,motor oil light battery light. car shut off to the point where i couldn't accelerate. so imagine being on the highway and your car shuts off randomly while your in motion and cant accelerate to merge to the emergency lane. this happened 4 more times on my way to the dealership less then 800 miles!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!