Tesla says battery availability remains the binding constraint on production, exits Q3 with largest passenger-vehicle backlog in four years

What happened

Tesla's Q3 2026 shareholder deck disclosed that battery availability 'continued to be the limiting factor in increasing auto volumes' and that the company ended the quarter with its largest passenger-vehicle order backlog in four years, reaching back to 2022. The Q3 deck puts battery capacity on its highlights page, a step up from the Q2 deck, which mentioned the backlog claim ('largest since 2023') only verbally. Tesla said it is expanding pack capacity with major projects in Berlin, Texas and Nevada. The context cuts both ways: deliveries fell 2.1% year over year and average selling prices fell again — unusual for a genuinely supply-constrained automaker — while FSD (Supervised) attach rates topped 75% of new North American deliveries and FSD subscriptions hit a record 1.74 million, which Tesla cites as a demand driver.

Who’s affected

• TSLA — production upside capped by cell supply; backlog supports pricing power but volume growth is constrained
• Battery cell/pack suppliers and miners feeding Tesla's supply chain
• Legacy automakers — Tesla's supply-limited stance reduces near-term pricing pressure but confirms resilient demand (FSD driving orders)

Sources

wsj.comelectrek.co