As part of the 2024.26.3 release notes that Tesla published, it seems that, for the first time in a long time, vehicles with MCU1 are going to be getting an FSD update.
Last Update in 2022
The last update that MCU1 vehicles got was FSD Beta v10.69.3.3 – which was released in 2022.8.10.10. That’s quite a while ago, and this is an awesome update for some of the people who adopted Tesla’s FSD early on.
This was back when you had to have a safety score minimum to join the FSD Beta program – letting you press the “Request FSD Beta” Button on the Autopilot Settings page. MCU 1 vehicle owners also had to conduct a complimentary (if FSD was purchased) or paid (if FSD was subscribed) upgrade to their Autopilot cameras to receive FSD Beta.
FSD v10.69.3.3 is ancient by today’s FSD standards – and this first update for those legacy MCU 1 vehicles is a good demonstration of Tesla’s commitment to bringing autonomy to its older vehicles. We’re glad to see this is the case, especially in the light of the upcoming Hardware 3/AI4 divergence that has everyone on their toes – and FSD V12.5 has only come to AI4 (Tesla’s new name for HW4) vehicles and not hardware 3 vehicles yet.
Tesla’s MCU 1 vehicles are powered by an NVIDIA Tegra processor for the infotainment unit but have FSD hardware 3 which is used to power FSD.
Free Trial
Owners who are receiving FSD v12 for the first time on their Tegra-based vehicles are also eligible to receive a free trial – if they’ve got that Autopilot camera upgrade already installed. That’s the same 4-week trial that (mostly) everyone received on any vehicle in the U.S./Canada when FSD v12 was first released.
A few unlucky owners who moved from 2024.8.9 (FSD v11) to an FSD v12 branch still haven’t received their complimentary trials for some reason, but we expect Tesla to iron this out.

