Speed Assist - Tesla X 2015-2020 Owner's Manual

Speed Assist

How Speed Assist Works
Model X displays a speed limit on the instrument panel
and you can choose if and how you are warned when
you exceed the speed limit. Also, instead of using the
detected speed limit, you can base warnings on an
arbitrary speed limit that you enter manually.
In situations where Model X is unable to determine a
speed limit, or if Speed Assist is uncertain that an
acquired speed limit is accurate, the instrument panel
may not display a speed limit sign and warnings do not
take effect.
NOTE: Speed limit warnings go away after ten seconds,
or when Model X slows down below the specified limit.
WARNING: Do not rely on Speed Assist to
determine the appropriate speed limit or driving
speed. Always drive at a safe speed based on
traffic and road conditions.
Controlling Speed Assist
To adjust the Speed Limit Warning setting, touch
Controls > Autopilot > Speed Limit Warning, then
choose one of these options:
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• Off - Speed limit warnings do not display and chimes
are not sounded.
• Display - Speed limit signs display on the instrument
panel and the sign increases in size when you exceed
the determined limit.
• Chime - In addition to the visual display, a chime is
sounded when you exceed the determined speed
limit.
You can also specify how the speed limit is determined:
• Relative - You can set a speed limit offset (+ or -) if
you want to be alerted only when you exceed the
offset speed limit by a specified amount. For
example, you can increase the offset to +10 km/h if
you only want to be warned when you exceed the
speed limit by 10 km/h.
NOTE: The offset from speed limit also affects the
number shown in the gray speed icon on the
instrument panel.
• Absolute - Manually specify any speed limit between
30 and 240 km/h.
NOTE: Speed Assist is not always accurate. In some
situations, the location of a road can be miscalculated
and Speed Assist can display a speed for a directly
adjacent road that may have a different speed limit. For
example, Speed Assist can assume Model X is on a
controlled-access highway when it is actually on a
nearby surface street, and vice versa.
NOTE: Your chosen setting is retained until you manually
change it.
Limitations and Inaccuracies
Speed Assist may not be fully functional or may provide
inaccurate information in these situations:
• Visibility is poor and speed limit signs are not clearly
visible (due to heavy rain, snow, fog, etc.).
• Bright light (such as from oncoming headlights or
direct sunlight) is interfering with the view of the
camera(s).
• Model X is being driven very close to a vehicle in
front of it which is blocking the view of the
camera(s).
• The windshield is obstructing the view of the
camera(s) (fogged over, dirty, covered by a sticker,
etc.).
• Speed limit signs are concealed by objects.
• The speed limits stored in the map database are
incorrect or outdated.
• Model X is being driven in an area where GPS or map
data is not available or where speed limit signs can
not be detected.
MODEL X Owner's Manual