Speed Assist
• Absolute - Manually specify any speed limit between
20 and 140 mph (30 and 240 km/h).
How Speed Assist Works
Model Y displays a speed limit on the touchscreen 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.
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 Y is on a
controlled-access highway when it is actually on a
nearby surface street, and vice versa.
NOTE: When using Traffic-Aware Cruise Control, you can
touch this speed limit sign to change your set cruising
speed to the detected speed limit (including any offsets
that you have set).
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).
In situations where Model Y is unable to determine a
speed limit, or if Speed Assist is uncertain that an
acquired speed limit is accurate, the touchscreen may
not display a speed limit sign and warnings do not take
effect.
• Model Y 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.).
NOTE: Speed limit warnings go away after ten seconds,
or when Model Y 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.
• Speed limit signs are concealed by objects.
• The speed limits stored in the map database are
incorrect or outdated.
• Model Y is being driven in an area where GPS or map
data is not available or where speed limit signs can
not be detected.
Controlling Speed Assist
To adjust the Speed Limit Warning setting, touch
Controls > Autopilot > Speed Limit Warning, then
choose one of these options:
• Traffic signs that do not conform to standard
recognizable formats, such as digital or temporary
speed signs.
• A road or a speed limit has recently changed.
• Off - Speed limit warnings do not display and chimes
are not sounded.
WARNING: The list above does not represent an
exhaustive list of situations that may interfere with
proper operation of Speed Assist. Speed Assist
may fail to provide warnings for many other
reasons.
• Display - Speed limit signs display on the
touchscreen 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 mph (10
km/h) if you only want to be warned when you
exceed the speed limit by 10 mph (10 km/h).
Active Safety Features
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