Electrical Connections
Regulations require all trailers to be equipped
with tail lights, brake lights, side marker lights,
and turn signals. To provide power for trailer
lighting, a built-in seven-way wiring connector
(SAE J560) is attached to Model X's tow bar,
near the trailer hitch. Most trailer wiring plugs
can be attached to this connector.
1. Reverse Lights (Purple)
2. 12V Power (Red or Black)
3. Right Turn Signal and Brake Light (Green)
4. Brake Controller Output (Blue)
5. Tail Lights and Running Lights (Brown)
6. Left Turn Signal and Brake Light (Yellow)
7. Ground (White)
Note: Plugging a trailer's wiring into the Model
X electrical connector automatically engages
Trailer Mode (see Trailer Mode on page 67).
Note: It is the driver's responsibility to ensure
that all electrical connections are working and
all trailer lights are operating before and
during towing. Model X does not detect faulty
trailer lights. You must perform manual
checks.
Note: Loss of trailer lights when towing may
be the result of a blown fuse. Model X does
not provide a warning if the fuse is blown.
Contact Tesla Service.
Caution: Always ensure that the trailer's
electrical cable does not contact or drag
on the ground and there is enough slack
in the cable to allow for turns.
Warning: The brake controller output
operates only when a brake controller is
installed (see Trailer Brakes on page 68).
Warning: Use only the electrical
connection designed by Tesla. Do not
attempt to directly splice or attempt to
connect a trailer’s electrical wiring using
any other method. Doing so can damage
the Model X electrical system and cause
malfunctions.
Trailer Sway Mitigation
When trailer sway is detected, Model X’s
electronic stability control system attempts to
apply the appropriate amount of braking to
minimize trailer sway. The instrument panel
briefly displays the traction control system
indicator. Pressing the brake pedal when the
system is actively braking to mitigate trailer
sway does not cancel this automatic braking.
Impact on Range
Towing increases Model X's weight and drag.
As a result, driving range decreases
significantly and although Trip Planner
attempts to adjust estimates based on Trailer
Mode, actual energy consumption may vary.
Keep this in mind when planning your trips
and charging destinations.
Towing a Trailer
72 Model X Owner's Manual
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