Will Back Up Sensors on 2016 Toyota Sienna Need to Be Disabled When Towing

Updated 05/09/2020 | Published 05/07/2020

Products Featured in This Question

Curt Trailer Hitch Receiver - Custom Fit - Class III - 2"

(238)

$223.48

1-7/8" Hitch Ball - 1" Diameter x 2-1/8" Long Shank - Chrome - 2,000 lbs

(2634)

$13.58

Single Rocker Switch - Labeled On/Off - SPST - Black

(20)

$7.64

2" Hitch Ball - 1" Diameter x 2-1/8" Long Shank - Chrome - 7,500 lbs

(1362)

$13.46

Curt Ball Mount for 2" Hitches - 4" Rise, 6" Drop - 14-1/4" Long - 6,000 lbs

(3914)

$42.73

Question:

The instructions direct me to Disconnect backup sensor connectors as needed. I assume I will needinch to do this if I plan to tow a camper. Should I expect to needinch this if connecting a bike rack to the trailer hitch? Also, is there a convenient way to install a switch near the dash board to turn off the backup sensors verses disconnecting the lines? 2016 Toyota Sienna XLE/Limited.

asked by: Stan C

Expert Reply:

Actually, you really shouldn't need to do anything with the sensors because they'll only activate when the vehicle is in reverse. If you find that having them sound while your backing is annoying, you can install a switch such as # 37212595 inline with the power circuit feeding the sensors so you can turn them on and off as needed. You'll need to trace the sensor wires from the bumper, and locate which wire in their harness carries power. Install the leads for the switch inline on that circuit.

To tow with the hitch, you'll need a trailer wiring harness, part # 118648, a # D-28 ball mount, a # PC3 hitch pin and either a # 19260 for a 1-7/8 inch or # 63845 for a 2 inch trailer ball.

I've linked to installation videos for the hitch and the trailer wiring harness.

expert reply by: Mike L