Tesla 12v Battery Must Be Replaced Soon

The 12V battery failed at 24000 miles about 2 years after getting the car.

Tesla 12v battery must be replaced soon. Mildly worries about making it. So far Ive been able to drive but without power to the USB ports. It is recommended to replace the battery at your earliest convenience.

12 V battery must be replaced soon and parking brake functions degraded x2. The 12V battery has aged or degraded and needs to be replaced. In the meantime continue normal use of the vehicle.

Until the battery is replaced vehicle software updates will not complete. In ICE cars you can normally expect about 4 years of life before needing to replace the 12V battery which begs the question why are Tesla 12V batteries failing. The guy on the Tesla Support Line thanks Les236 told me that the battery typically lasts two weeks after the warning message is.

I started getting the warning Tuesday last week and my mobile service isnt schedule until Tuesday next week. Being plugged in shouldnt make any difference to the 12V battery. The imprecision in this paragraph is because the limits vary a bit between brands and types.

You can overcharge a 12V battery as high as 16 volts but it wont be happy and will start outgassing. It will charge it as needed from the main pack regardless of whether or not the car is plugged in. The local service advisor messaged me and set up a tentative mobile service appointment for January 6 2021 assuming that they receive a replacement battery.

For any replacement after the original the battery carries a separate warranty. How long can you drive after getting a 12v Battery Must Be Replaced Soon warning. I documented my experience have Tesla come out to me and service my car at home with their mo.