NOTE: When testing chocks, ensure that Vehicle Hold
(see Vehicle Hold on page 70) is not engaged. If
Vehicle Hold is braking Model Y, the Vehicle Hold
indicator light displays on the touchscreen. To
disengage Vehicle Hold, press and release the brake
pedal.
4.
Place the vehicle in Park.
WARNING: If parking on a grade is necessary,
always ensure that all trailer wheels have been
securely chocked. Failure to do so can result in
serious damage or injury.
Trailer Sway Mitigation
When trailer sway is detected, the electronic stability
control system attempts to apply the appropriate
amount of braking to minimize trailer sway. The
touchscreen
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.
Attaching and Removing the Ball
Mount
The Model Y towing package does not include a ball
mount. You must purchase a ball mount suitable for the
type of trailer you are towing. The Model Y hitch receiver
supports a ball mount with a length of up to
8.5” (22
cm) and a rise of up to 0.75” (2 cm). Do not use any
type of drop ball mount that does not meet these
requirements.
To attach a ball mount:
1. Remove the dust cover from the hitch housing by
using a small object, such as a
flat screwdriver, to pry
between the dust cover and hitch housing. Store the
dust cover in a secure location.
2.
If necessary, remove the cotter pin from the locking
bolt and slide the locking bolt out of the hitch
assembly.
3.
Slide the ball holder into the hitch assembly.
4.
Align the hole in the ball holder with the one in the
hitch assembly.
5.
Slide the locking bolt through the hitch assembly/ball
holder.
6.
Insert the cotter pin in the hole at the end of the
locking bolt.
To remove a ball mount:
1.
Remove the cotter pin from the locking bolt and slide
the locking bolt out of the ball holder/hitch assembly.
2.
Pull the ball holder out of the hitch assembly.
3.
Re-install the dust cover for the hitch housing and
store the ball mount in a secure location.
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 7-pin
wiring connector is provided near the hitch support's
wiring plugs for most types of trailers. Plugging in trailer
wiring into the
Model Y electrical connector
automatically engages Trailer Mode (see Trailer Mode on
page 78).
Towing and Accessories
80 MODEL Y Owner's Manual
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