The only “major” service issue I have ever had with my 2018 P3D is that I had to have the 12v battery replaced after about 2 1/2 years. Even though it was covered under warranty, I consider it a major issue because it rendered the car undriveable and it had to be towed. At that time, there was no warning that the battery was weak. One day, the car just would not power on and I had to have it towed to the nearest SC.

My question is, is it a good idea to have the 12v battery replaced periodically even if there is no sign of a problem? If so, when would you have it replaced? Every 2 years? Every 18 months?

Just curious what other Tesla Model 3 drivers are doing in regards to 12v battery replacement. Thank you!

Joebruin77