A DIY Upgrade: Tesla Owner Swaps HW3 for HW4 Ahead of Schedule

Tesla has been promising a hardware upgrade path for owners of its older Autopilot computers, but the company has dragged its feet for almost two years. While the automaker continues to push back timelines for HW3 owners to get access to the latest Full Self-Driving features, one enterprising owner decided to take matters into their own hands.

Instead of waiting indefinitely for Tesla to release a retrofit, this individual successfully installed the newer HW4 computer into their older vehicle. The swap appears to have been a straightforward process, despite Tesla not officially supporting such a change. This DIY approach highlights the frustration many HW3 owners feel as they watch newer cars receive advancements their vehicles are technically capable of handling.

While this hack won’t be for everyone, it raises questions about Tesla’s upgrade policy. Is the company simply waiting for more HW4 vehicles to be sold before dedicating resources to the retrofit, or is there a technical hurdle that makes the swap impractical at scale? For now, the owner’s success shows that some determined drivers are willing to bypass the official channels to get the performance they paid for.

This story also underscores the broader debate about how automakers handle software and hardware upgrades for their electric vehicles. As EVs continue to evolve rapidly, the ability to update hardware will become an increasingly important factor for consumers deciding which brand to trust with their money.