Tesla MODEL X Owner's Manual page 119

Limitations
Autopark is particularly unlikely to operate as intended
in these situations:
• The road is sloped. Autopark is designed to operate
on flat roads only.
• Visibility is poor (due to heavy rain, snow, fog, etc.).
• The curb is constructed of material other than stone,
or the curb cannot be detected.
• The target parking space is directly adjacent to a wall
or pillar (for example, the last parking space of a row
in an underground parking structure).
• One or more of the ultrasonic sensors is damaged,
dirty, or obstructed (such as by mud, ice, or snow, or
by a vehicle bra, excessive paint, or adhesive
products such as wraps, stickers, rubber coating,
etc.).
• Weather conditions (heavy rain, snow, fog, or
extremely hot or cold temperatures) are interfering
with sensor operation.
• The sensors are affected by other electrical
equipment or devices that generate ultrasonic waves.
WARNING: Many unforeseen circumstances can
impair Autopark's ability to park Model X. Keep
this in mind and remember that as a result,
Autopark may not steer Model X appropriately. Pay
attention when parking Model X and stay prepared
to immediately take control.
Autopilot
Autopark
117