Tesla 2026.39.100 Caps FSD/TAD Speed Offset at 10% in Europe

Tesla 2026.39.100 Caps FSD/TAD Speed Offset at 10% in Europe

Tesla’s European software update 2026.39.100, which includes FSD v14.2.2.6, changes the name of FSD (Supervised) to Tesla Assisted Driving (TAD). “This change only updates the name of certain features and text in your vehicle, and does not change the way your features behave,” the release notes read.

Beyond the naming change, owners have found two adjustments not listed in the notes: the maximum Speed Offset has been reduced from +50% to +10%, and the setting now resets to 0% whenever the vehicle starts. Several owners, including a reader named Addie, noticed these behaviors after installing the update.

What Changed

Speed Offset allows FSD to exceed a posted speed limit by a chosen percentage. Before this release, drivers in Europe could select up to +50%. The new ceiling is +10%, and the offset reverts to 0% at the start of each drive, requiring drivers to set it again on every trip if they want FSD to exceed the limit.

The adjustments align with changes approved earlier this month by the Dutch RDW, which also informed other EU countries that adopted its original approval framework for bringing FSD to their roads. There was no separate announcement that these changes had begun rolling out, and they are not referenced in the release notes.

Why Tesla Made the Change

Several EU countries sought a cap on Speed Offset. France and Sweden, along with road safety groups such as the European Transport Safety Council, raised concerns about FSD operating well above posted limits. Germany later said it would support FSD in the upcoming EU-wide approval vote if Tesla limited Speed Offset to 10% and renamed FSD to Tesla Assisted Driving.

With both measures now active, Tesla has addressed Germany’s two primary conditions ahead of December’s vote on bloc-wide approval. Regulators have indicated that additional updates are expected before the vote, largely focused on keeping drivers attentive.