Tesla determines how, when, and where to send updates to vehicles based on various factors unique to each release. You can choose how quickly and often you receive software updates. To change your preference, touch Controls > Software > Software Update Preferences and choose either of these options:
NOTE: Tesla does not update software upon request for those wanting to receive the latest features and improvements. Selecting Advanced and consistently connecting to Wi-Fi (see Connecting to Wi-Fi) is the best way to receive the latest software updates.
NOTE: The software update screen persists until you install the update. You must install a software update as soon it becomes available. Any harm resulting from failure to install a software update is not covered by the vehicle's warranty. Failure or refusal to install updates can cause some vehicle features to become inaccessible, digital media devices to become incompatible.
NOTE: Tesla may update or reinstall your vehicle's software as part of the normal diagnostic, repair, and maintenance process within Service.
NOTE: Reverting to a previous software version is not possible.
If the touchscreen displays a message indicating that a software update was not successfully completed, contact Tesla.
Charging
If Model S is charging when the software update begins, charging stops. Charging resumes automatically when the software update is complete. If you are driving Model S at the scheduled update time, the update is canceled and must be rescheduled.
Viewing Release Notes
When a software update is complete, read the release notes displayed on the touchscreen to learn about changes or new features. To display release notes about the current version of your vehicle's software at any time, touch Controls > Software > Release Notes.
Tesla strongly recommends reading all release notes. They may contain important safety information or operating instructions for your Model S.