Specific failure modes under investigation

NHTSA extended Tesla's deadline to respond to an FSD investigation covering 8,313 potential traffic violations. The new February 23 deadline arrives just after Musk announced FSD will become subscription-only on February 14, the same day California's DMV gave Tesla to fix misleading marketing or face a sales ban. We break down what federal regulators are actually investigating, why Tesla is juggling three major probes simultaneously, and how the subscription pivot may be a legal hedge as regulators close in.