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Expert Answers about GMC

  • How to Determine Correct Height Setting for 5th Wheel Hitch
  • Choosing the right height setting for your 5th wheel hitch is a combination of a few different variables. First of all you want your towing setup to be as level as possible. With your Montana High Country 340BH level you will want to measure from the ground to the bottom of your pin box where the king pin is at. The next step is to choose which of the 3 height settings on your 5th wheel hitch, 17", 18" or 19", gives you the most level ride. Simply measure from the ground to the head unit...
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  • Bypassing Factory Brake Controller and Installing Aftermarket Model on 2018 GMC Sierra 3500
  • There isn't anything like an autonomous controller that would step up if the factory controller fails. I'd simply bypass the existing factory brake controller. The GM ITBC, although it works better now than the earlier models has been problematic enough that Tekonsha who provides many of our aftermarket brake controllers has a technical bulletin that specifically addresses how to bypass the factory controller. Let's just say you aren't the only one that's had problems with the factory...
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  • How to Install a P3 Brake Controller on a 2014 GMC Yukon XL
  • On a 2014 GMC Yukon there is no place to plug in a controller but the vehicle does have a tow package wire bundle up under the dash, to the left of the steering column, held together with a white tag. I have linked a video on a 2013 Yukon XL that will be the same as your 2014. I have also linked a help article that will help. There may be some under the hood connections that need to be made as well and the article will help with that.
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  • The Proper Set Up of Curt TruTrack Weight Distribution System on 2007 GMC Sierra 1500
  • The goal of a weight distribution system such as the Curt TruTrack # C17499 is to ensure a level setup with the tow vehicle and trailer; you do not need to get back to the unloaded factory stance of your 2007 GMC Sierra 1500. Before using any weight distribution system it is important that you get the correct one. To determine the right system, you will first need to know your total tongue weight (TTW), which is the tongue weight of your fully loaded and ready to go trailer plus the weight...
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  • Is there a Difference in Installation for the Different Curt TruTrack Weight Distribution Systems
  • The only difference between Curt TruTrack weight distribution systems # C17501 and # C17500 is the capacity of the spring bars. Installation will be the same for both so you can use the video for C17500 as a guide to supplement the instructions that come with # C17501.
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  • Wire Gauge and Color Connection to Vehicle for Hopkins 7-Way Trailer Connector # HM11141144
  • The Hopkins Multi-Tow 7-Way Blade and 4-Way Flat Trailer Connector - Chevrolet/GMC # HM11141144 will connect the following way: harness color to vehicle color--I've attached a photo to assist. white to black brown to brown yellow to yellow green to green purple to gray blue to blue red to orange The wires are 12 gauge for white, blue, and red. They are 14 gauge for the other function colors. The kit comes with the butt connectors and dielectric grease for installation.
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  • Is the 7-Way Vehicle Power Adapter Needed for the 2024 GMC Sierra 3500?
  • Since pulse modulation does not look like it's going anywhere, you are going to need the 7-Way Vehicle Power Adapter for Furrion RV Observation Camera # FR87PR.
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  • Should There Be a Light On the Redarc Tow-Pro Liberty Brake Controller While Driving Without Trailer
  • In regards to the Redarc Tow-Pro Liberty Brake Controller part # # RED24FR, the unit should not be illuminated while driving without a trailer. If you press the button while a trailer is not attached you should see a breathing blue light and that simply indicates the controller is in sleep mode. This is further explained in the manual so please give this a look over.
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  • How To Install a Battery On a Trailer for Use with Electric Jack
  • I have attached a photo for you that shows how a 7-way trailer connector is wired. If you take a look at the trailer side trailer connector you will see a terminal labeled "12V Power". If you were to run a wire part # 10-1-1 (per foot) from this terminal on the 7-way trailer connector to the positive terminal on the battery that would then provide a maintenance charge while the trailer is attached and the vehicle is running or the key is in the ACC position. This will depend on how the...
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  • How To Add Power Wire for MaxxFan Deluxe Vent with Fan
  • The MaxxFan Deluxe Roof Vent w/ 12V Fan, Thermostat, and Remote - Powered Lift - 10 Speed - Smoke # MA00-07500K requires 12V power at 5 amp draw. Since you are installing in a location that doesn't have power wires run, you will need to run a power wire like # 12-1-1 or # 10-1-1 (sold by the foot) to your battery or to another 12V power source that can handle that draw. There is a good chance the bathroom fan or a light could be a good tie in point as long as you tie in prior to a switch. You...
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  • Installing a Brake Controller in a 2009 GMC Sierra 1500
  • It does look like you might have made some wiring errors during the installation. I have also linked a video that will help. On the 2009 GMC Sierra 1500 when installing a brake controller make the following connections to the brake controller: Truck red wire to controller black wire (12 volt power to brake controller) Truck dark blue to controller blue wire (output to trailer brakes) Truck light blue (or orange if light blue doesn't work) to controller red wire (input from brake switch) Truck...
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  • Can The Lippert Ground Control 3.0 Be Mounted To A Box Frame Beam
  • The Lippert Ground Control 3.0 Electric 5th Wheel RV Leveling System w Touchpad and Remote - 6-Point Set # LC675817 can be installed on box frame trailers, but since it uses nuts and bolts to mount you'll need to drill an access to hole of the other side of the frame to be able to tighten the nuts or you could have the brackets welded to the frame.
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  • Diagram Showing How Trailer Brakes are Wired
  • The brake wire providing voltage is wired in parallel, with one lead from each magnet being grounded to the trailer frame. We have a great Wiring Help Page that shows a diagram, I will provide a link to it below.
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  • What Does Triangle on Blue Ox Patriot Remote Controller Mean
  • The triangle on the Blue Ox Patriot # BLU37TR remote controller will fill in as you start to brake which is an indication of how much braking force the Patriot is applying to the brake pedal on your 2021 GMC Canyon. When I reached out to my contact at Blue Ox they said they've never heard of a gap on that triangle and the only time the controller should be beeping is if there is an error - in which case you would see an error message on the display screen. The gap may be the graphic starting...
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  • Trailer Wiring Harness for a 2019 GMC Acadia Without the Factory Tow Package
  • From the information I can find I believe your 2019 GMC Acadia will have the wiring routed back towards the rear of your vehicle whether you have the factory tow package or not (see attached photo). If you check up under the rear bumper of your Acadia you should find the wiring harness that you would plug the T-One # 118720 (for a 4-Way) or # 118276 (for a 7-Way) into. I have attached some installation videos on a 2017 Acadia as well as the written instructions for you to reference. I like...
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  • Where is the Brake Switch Wire on a 2014 GMC Savana Van to Install a Brake Controller
  • I can tell you were to access the correct brake switch wire to install a brake controller on your 2014 GMC Savana Van. You will need to access the wire behind the BCM (body control module) located behind the dash on the passenger's side of the vehicle. There should be a brown connector coming out of the back of the BCM. At that connector you should find a light blue/white wire. This is the wire that carriers the dedicated brake light signal. Use a circuit tester such as # PTW2993 to confirm...
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  • Install Instructions and Install Video for Convert A Ball Fifth Wheel to Gooseneck Adapter
  • I attached a picture that shows the installation instructions for the Conver a Ball Adapter part # CAB-C5GX1216 that you referenced as well as an install video for you to check out.
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  • Lippert 6-Point Level-Up System Foot Pad Torque Requirement
  • For the 6-point Level-Up System by Lippert, I made a call to the manufacturer to ensure you would receive correct information. Lippert said that when you bolt the footpads to the jacks, you need to torque them to 132 ft-lb. They said to make sure to use Loctite Threadlocker 262 - High Strength - Up to 3/4" Nuts/Bolts - 0.20-Fl-Oz Tube, # LT37420 on the footpad bolts and do not try to remove the bolt once it is tightened as removing the bolt could result in damage to the cylinder. It...
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  • How Easy is Installing Tekonsha Prodigy Brake Controller in 2018 GMC Sierra 1500
  • Installing a brake controller in your 2018 GMC Sierra 1500 with the towing package really is as easy as what you described. Basically you just plug in the # 3016 to the back of the controller and then to the port under your dash and it's wired up and ready. You'd only need to mount the controller and you'd be all set. I attached an install video that will walk you through the entire process using this harness on a similar 2017 Silverado 1500. For a brake controller I would recommend the...
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  • Where is the Brake Controller Port Located on a 2005 GMC Yukon Denali
  • The brake controller port on your 2005 GMC Yukon Denali will be located in the black junction box, which is under the dashboard and to the left of your steering column, right above the carpet. The plug in point will be the second port from the left, on the top row. I have included a link to instructions for a brake control wiring adapter # 3015-P that plugs in at this same point, if needed. If you do not already have a brake controller, I would recommend the Prodigy P2 # 90885, which...
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