Tesla MODEL X 2021 Owner's Manual page 198

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, and can limit Tesla's
ability to diagnose and service your vehicle.
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 X is charging when the software
update begins, charging stops. Charging
resumes automatically when the software
update is complete. If you are driving Model X
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 X.
196 MODEL X Owner's Manual