Diagnostics, feature requirements and software campaigns.
Your region is remembered for both language versions of the software catalogue. Unknown applicability remains visible and clearly marked.
These reference entries do not have a single regional scope. Check the individual feature description and the car’s VIN.
2026.38 · Service Mode · All vehicles on the Tesla list
Screen Language and Insulation Control in Service Mode
Tesla has described two changes to its diagnostic regime. They are for service, not for the owner’s regular menu.
Temporary Interface Language
When logging into Service Mode, you can temporarily select the screen language. After the release, the owner's language returns; the change of language restarts the interface.
All vehicles are service mode only
Isolation information
In the high voltage panel, touching the indicator reveals the insulation resistance values and, if there is a problem, associated warnings and diagnostic codes.
All vehicles are service mode only
Service Mode's public notes do not reveal the deployment date or confirm the availability of a version on every vehicle in Europe.
2026.32.3 / 2026.26.100.2 · Only cars participating in the campaign · VIN check
Correction for Model 3 Premium Part
For affected left-handed Model 3 Premium, Tesla indicates a software fix to the central airbag algorithm.
Correction of the airbag operation
Tesla calls versions 2026.26.100.2, 2026.32.3 and later solutions for this campaign. With successful installation, a visit to the service is not required.
Affected left-handed Model 3 Premium
Version number alone does not prove the car's involvement in the campaign. Check the VIN and status of the installed update.
2026.32 · Model 3 and Model Y · Part of the features are limited to hardware configuration
Screen diagnostics and stored signal sets
In Service Mode, there are tools for checking displays and a quick selection of sets of diagnostic signals.
Display diagnostic panel
Shows the state of the center and rear screens, communication, frame rate and touch and color checking tools.
Model 3 and Model Y · Service Mode
Finished sets in Signal Viewer
The wizard can download a set of signals for a typical diagnostic task instead of manually selecting each parameter.
Model 3/Y with AMD Ryzen, Model S/X 2021+ Service Mode Plus
The headlight wizard from the same version of Tesla restricts the Model 3/Y with AI4 in the US and Canada, so do not pass it off as a European feature.
2026.26+ · Tesla with AMD · Premium Connectivity or Wi-Fi
Grok: Connected services and multi-step tasks
Tesla's European support page lists this version as minimal for Connectors and Grok Bot. This is a requirement for the function, not the date of its first appearance for all owners.
Connectors
Grok can access connected mail, calendar and files. The connection is configured in the Grok account, not on the car screen.
2026.26+ Account Grok · AMD
Grok Bot
The assistant can perform multi-step tasks through a linked account. Tesla separately specifies the SuperGrok subscription and setup of the necessary connections.
2026.26+ · SuperGrok · AMD
Grok account login is required; SuperGrok is additionally required for Grok Bot. Accessibility and conditions may change.