Brake Controller Insatll-2012 GMC Acadia w/ Factory Tow Package

Question

Question:

Hello, I have a 2012 GMC Acadia with a factory installed trailer pkg. Attached are two pages from the towing section of the owner’s manual. I have a few questions about the installation of the TK90160 controller and 3026-P wiring adapter. 1 After I connect the brake controller to the vehicles trailer harness plug under the steering column is there anything else I need to do? 2 The vehicle has a 30 Amp fuse installed in the underhood electrical center but the wires are not connected. Where do I find these wires and where do they get connected to? 3 Once the above questions work is completed is the anything else I need to do? Thank you for your assistance

asked by: Dennis D

1

Helpful Expert Reply:

If your 2012 GMC Acadia was equipped with the factory installed 7-way trailer connector at the rear of the vehicle, then installing a brake controller will be a plug-and-play process. You'll need the # 3026-P brake controller wiring harness, as you mentioned. Other than attaching the controller in its desired mounting location and plugging in the harness, there's nothing else that needs to be done.

Install the # TK90160 Primus brake controller under the dash, to the right of the steering column. The connector for the wiring harness is located under the dash, just above where the drivers left knee will sit. (See linked instructions for 3026-P).

If the Acadia isn't equipped with the factory 7-way, you'd need to do a hardwire installation using our # ETBC7 brake controller install kit. The kit includes an adapter to convert a functional 4-pole into a 7-way, so if you don't already have a 4-pole connector you'd need to install one using # 118451. I've linked you to the instructions for the ETBC7 kit, as well as to some install videos that you'll find helpful.

expert reply by: Mike L

1

Answer 1

I've provided you with a photo as well as a video showing where the connector is located. You'll need to let down that under dash panel, and look just to the right of the top of the emergency brake pedal. The connector could be taped to…

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Answer 2

I would be happy to help you. We hear this complaint quite often about dealerships not wanting to install after market wiring for random reasons because they want you to purchase theirs usually. The Curt Shock Absorbing Towing Kit w/ Sway Control and…

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Answer 3

The P3 brake controller, #90195, will go into a sort of sleep mode after it detects no movement for 15 minutes. While it is on it does not draw very much power. What you can do to make sure it goes to sleep is exit the truck after turning it off,…

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Answer 4

The Tekonsha Prodigy P3 Brake Controller, #90195, does not have an on and off switch. It will go into sleep mode after several minutes of no activity. The power draw when it is in the sleep mode is so negligible that it will not discharge the…

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Answer 5

The trailer hitch I recommend for your 2012 GMC Acadia is the Draw-Tite Class III Max Frame Round Tube Receiver #75528 because it offers a greater towing capacity at an economical price for you. This hitch will also offer a more streamline look for…

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Answer 6

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 7

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 8

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 9

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

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Answer 10

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 11

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

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Answer 12

The first thing you will need for your 1999 D250 is a 4-way. The Curt T-Connector Vehicle Wiring Harness #C55317 plugs into the connection points behind your rear bumper and will allow you to power your trailer's signal lights. Once the 4-way is…

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