There are 5 stored owner reports matching the fuel system leading-label group for the 2021 Tesla Model Y in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 5 of 5 matching reports.
Open the full vehicle complaint log (all categories)After charging the vehicle threw error code “BMS_a079 Unable to charge - Maximum charge level reached Reduced maximum charge level - Schedule service”. The car would no longer charge and had to be taken in for service. Tesla advised the High Voltage battery needed to be replaced. Replacing the High Voltage battery resolved the issue.
High voltage battery systems are failing at an extreme rate on 2021 tesla model 3 and Y. I am a used car dealer and have had 6 battery failures in the last 30 days. When addressing this with the local service center, they said they've reported this to Tesla engineers as they're prematurely failing at "an alarming rate". There is no advanced warnings. The vehicle just leaves you stranded.
I was driving my car when suddenly it started losing power while I was driving 70 - 80mph, and I noticed two messages on the screen: "power limited, schedule service" and "power reduced” and then my car would no longer drive above 50 - 55mph and the heat in the car was reduced . Concerned about the issue, I promptly contacted Tesla to have my vehicle serviced. However, to my surprise, after performing a diagnosis, they insisted that there was nothing wrong with the car. The component I believe failed is the heating pump, which is still installed in the vehicle. My safety was put at risk because I was on a highway with the speed limit was 75mph, and if other people were not paying attention they may have crashed into me due to me suddenly slowing down and also things could of turned fatal if someone were to be stranded in the middle of nowhere without a working heater when it is 0° outside. The issue was confirmed by the manufacturer as a “ engineering issue” that would be addressed with a software update.
Sudden acceleration. I was stopped in my driveway (flat surface). The car started to roll forward and I pressed brake hard. Vehicle came to a complete stop but when I removed my foot from brake car lurched forward. Car hit a retaining wall approximately 3 feet away before I could stop it again by braking hard. When the car was put in park I was able to remove my foot from the brake without it lurching forward again. Little personal safety risk in this situation in my driveway with no other people around. the car hit the retaining wall at relatively low speed when it lurched forward.
WHILE I WAS PREPARING TO PARK. THE CAR ACCELERATED ON IT'S OWN AND JUMPED THE CURB. THE BREAK WAS NOT RESPONSIVE, AND I WAS UNABLE TO STOP THE CAR. THE CAR HIT A POLE AND STOPPED. I CALLED THE POLICE AND FILED A POLICE REPORT. THIS IS SECOND TIME THAT THIS HAS HAPPENED SINCE OWNING THE CAR.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.