NHTSA Complaint #11604096 — 2022 HYUNDAI SANTA FE

On November 28 2023, I was pulling onto a small highway when an alarm went off, car stopped (engine off) as other cars were coming towards me. The message displayed was "autostop is off. Shift to P or N and start engine manually". Because the alarm was so loud and I was concerned, I snapped a picture which will be attached. I immediately pushed start button and was able to get out of the way. I had not turned the Idle Start Stop (ISS) button to off - so supposedly it was on. (You have to push this button to turn ISS off. This happened twice until I was able to get to service department. After much time (and using a loaner car) Hyundai agreed to provide a new battery because of its health. This happened again. I took the car back and the manager showed me a technical service bulletin - regarding my car - "Rough Shift and Hesitation Improved Logic". This didn't sound like Idle Start Stop bulletin but I was assured it was (attached). Though the stall has not occurred since, the ISS icon at times just isn't there. My dealer is communicating with Hyundai to try to keep my car again and provide a loaner. I am reporting this because many others on Hyundai Forums are describing the same incidents. Yet I haven't seen anyone mention the Technical Service Bulletin, even though many have taken this problem to their dealer. To me this needs to be considered for a recall. I had a daughter and grand daughter in my car and had no idea what to do with cars approaching. Fortunately, just pushing start worked. I have read the manual and know what is required for ISS to work. All requirements were net. It is possible the TSB has fixed stall issue so I am mainly reporting for other drivers.