The engine/engine management system malfunctioned. The vehicle began repeatedly stalling and shutting off while I was driving and while stopped in traffic. The vehicle is now no longer able to start and run and will need to be towed to a Hyundai dealer. The vehicle is available for inspection upon request. My safety and the safety of others were put at risk because the engine shut off unexpectedly in active traffic. When the engine stalled, I lost the ability to continue accelerating and had to put the vehicle in Park and restart it. This occurred more than once and could have caused a collision, especially in intersections or congested traffic. An independent diagnostic scan was performed and showed engine misfire faults, although it did not identify a specific cylinder. The vehicle has not yet been fully inspected by Hyundai because it is currently inoperable and needs to be towed to the dealer. Hyundai has confirmed that there is an active software/campaign update associated with my VIN. I am also aware of Hyundai engine-related campaigns involving certain 2019–2021 Veloster vehicles with the 2.0L Nu engine, and my vehicle is experiencing similar symptoms, including stalling and engine shutdown. I am requesting that the vehicle be inspected by Hyundai to determine the cause. Prior to the complete no-start condition, the vehicle had symptoms including rough running, misfiring, stalling at stops, and the engine shutting off while driving. A diagnostic test confirmed misfire faults. The condition progressively worsened until the vehicle would no longer start and remain running

Source: NHTSA complaint ODI #11764077 · view all complaints for this vehicle at nhtsa.gov

WHEN ACTIVATING THE TURN SIGNAL, PARTICULARLY WHEN TURNING LEFT, IT IS VERY EASY TO INADVERTENTLY TURN OFF ALL EXTERIOR LIGHTS. IF TOO MUCH FORCE OR A "SLAPPING" MOTION IS USED, THE SWITCH CAN EASILY ROTATE TO OFF, WHILE DRIVING.

Source: NHTSA complaint ODI #11399388 · view all complaints for this vehicle at nhtsa.gov

I BOUGHT A NEW 2020 HYUNDAI VELOSTER THREE WEEKS AGO. I HAVE DRIVEN IT FIVE TIMES. ON THREE OF THOSE FIVE OCCASIONS, WHEN ACCELERATING IN FIRST GEAR FROM A STOP AT AN INTERSECTION, THE CAR SCREECHED TO A HALT, AS IF THE WHEELS WERE LOCKED. IT DID NOT DO THIS EVERY TIME I STOPPED AT AN INTERSECTION - IT WAS RANDOM AND UNPREDICTABLE. THE LAST INCIDENT WAS ON 8/31/20, WHEN THE MILEAGE WAS APPROXIMATELY 350 MILES. THIS IS A VERY DANGEROUS, SERIOUS DEFECT.

Source: NHTSA complaint ODI #11352582 · view all complaints for this vehicle at nhtsa.gov

While driving my steering wheel will lock up and I’ll get an error message for lane keep assist on the dash. I never use lane keep assist so even when it’s off it does this. I have to keep turning my car off and back on for my steering wheel to unlock and the error will disappear.

Source: NHTSA complaint ODI #11595539 · view all complaints for this vehicle at nhtsa.gov

Glass roof spontaneously shattered. Car was sitting in direct California sun. Nothing touched the roof but heat, the entire panel shattered and the car is undriveable.Thankfully my car was unoccupied at the time. I have heard there had been class action lawsuits in the past regarding this vehicle make and model involving years up to 2018 but models including 2020 like mine have also had complaints reported. Just adding this to the list of complaints filed.

Source: NHTSA complaint ODI #11668350 · view all complaints for this vehicle at nhtsa.gov

- Lumbar support on driver seat cracked or snapped and no longer is functional what so ever - The seat itself feels sunken and nothing like the passenger seat which does not have lumbar support - Unknown - No inspection of vehicle yet - No prior notifications or signs of failure

Source: NHTSA complaint ODI #11425277 · view all complaints for this vehicle at nhtsa.gov