Trailer Wiring Harness for a 2010 GMC Acadia with or without Factory Tow Package

Question:

Will this fit a 2010 GMC Acadia? I do see a harness up in the passenger side rear fender but it doesnt confirm that this is the right part for a 2010 model year.

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Expert Reply:

I will be happy to help you select the right trailer wiring harness for your 2010 GMC Acadia. Harness # 118270 will not fit though but we do have options that will fit.

If that harness you found has a connector on it then what you can do is use a circuit tester such as # 40376 or a meter if you have one and test the pins in that connector. Someone will have to sit in the vehicle and operate the various lighting functions.

If it does have power then your Arcadia must have the factory tow package and you could plug in Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector # C55515.

If it does not have power or if the harness is for something else then you could use T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118451 which plugs in line with the vehicle tail light wiring.

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Michael H

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