🟡 Tesla Model 3 12V lithium battery failure — no start

Vehicle completely fails to wake up or respond to the app. No door handles deploying on 2021+ models. The 12V lithium-ion auxiliary battery in post-2021 Model 3 vehicles has a shorter lifespan than expected in some early production units. Tesla extended the warranty on 12V batteries for affected vehicles. If the battery fails completely, roadside assistance and a Tesla service centre are required as the battery is not user-replaceable on this generation.