Model 3 towing large trailer!

Homestead

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Large trailers like that will have their own braking system which can actuated by the driver.
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21st Century Pony

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Large trailers like that will have their own braking system which can actuated by the driver.
...can be actuated by the driver ...if (IF) the optional electric circuit for the brake blade in the 7-blade connector was added in the Model 3 Tesla, and a brake controller was also installed... both are optional items for a sedan towing kit, OEM or aftermarket.
 
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Billyk24

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Since the Model 3 is not rated for towing, the Curt wireless controller was "likely" utilized as it is by several Mach E owners.

Ford Mustang Mach-E Model 3 towing large trailer! curt wireless brake controller
 

21st Century Pony

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Since the Model 3 is not rated for towing, the Curt wireless controller was "likely" utilized as it is by several Mach E owners.

curt wireless brake controller.jpg
I use it... it is a surprisingly good piece of gear. However, the optional brake circuit to the 7-way connector's brake pin must still be present in the car.
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