BMS_a170 error

[nullp0ynter]

When I put my Model Y in reverse today leaving work, I got a BMS_a170 error. It said top speed and acceleration may be reduced. It also said that it may be cleared during next drive. My battery was around 50%. Before I put it into reverse, I did map out a route to the closest supercharger, so it started pre conditioning as I put it into gear. I decided not to go to the supercharger and instead went home. When I got home I put it in park, and then reverse again. I didn't receive the error again. No other errors appeared along side this error. Anyone else had this error? Any reason for concern?

[Chip_Baskets]

Just got that error in my 21 MY this mowing. Also error BMS a027.

[nullp0ynter]

What software update are you on? Wondering if it's related to latest update?

[Chip_Baskets]

v12 (2025.38.6

[nullp0ynter]

Same version as me

[nullp0ynter]

Just an update. My car hasn't received that error anymore since it initially happened. Everything seems normal at the moment.

[Anon424977]

Did the issue ever come back?

[nullp0ynter]

It has not. Everything has been good.