Tesla update slows Model Y?
Tesla's new 2026.2.9.1 software update for Model 3 and Model Y is getting heat – some owners are reporting a noticeable decrease in acceleration [https://www.youtube.com/watch?v=UCTni_k8BAY]. One owner's video shows their Model Y feeling "slower" post-update, and the community is speculating it's due to new energy management protocols [https://www.youtube.com/watch?v=UCTni_k8BAY]. Tesla owners are encouraged to document changes and report feedback through Tesla’s service channels.
Tesla's 2026.2.9.1 update, while labeled a minor fix, delivers the full 2026.2.9 feature set to those who haven't received it yet. This includes FSD v14.2.2.5, new Speed Profiles (SLOTH and MAD MAX), Arrival Options, and Child Left Alone Detection. The update also adjusts the default setting for Brake Confirm, turning it off, a change that FSD users should note. Some Tesla owners report experiencing temporary software glitches after updates, which can cause screens to feel slower or systems to respond inconsistently. Experts recommend allowing the car to remain parked for a few hours after installation to allow internal processes to complete properly and avoid these issues. Smooth driving during the first few cycles after an update also helps systems adapt properly. Tesla has faced claims of unintended acceleration in the past, which the company has refuted as "completely false". Tesla stated that its vehicles have multiple fail-safes and that data has proven the vehicle functioned properly in every reviewed case. A complete vehicle reboot, achieved by holding both steering wheel scroll buttons for 10 seconds, can resolve some performance reduction warnings.
