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Expert Answers about GMC Terrain


  • Installing Trailer Wiring Harness on 2017 GMC Terrain with Hopkins Tow Bar Wiring Already Installed
  • The Curt T-Connector Vehicle Wiring Harness # 56094 referenced in your question can be installed in your vehicle that already has the tow bar wiring you mentioned installed, however they cannot be plugged in at the same time. This trailer wiring harness is confirmed to fit your 2017 GMC Terrain and will provide a 4-Way connector at the rear of your vehicle. This will install by plugging into the vehicle's existing harness, which is located behind the driver's side and passenger's side tail...
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  • Adding a 7-Way and Brake Controller to a 2012 GMC Terrain and Old Trailer
  • Trailers have combined turn signals and brake lights on the same circuit so you wouldn't tap into one of those otherwise the brakes would turn on with the blinker like you said. You are going to have to add a 7-Way connector to the 2012 GMC Terrain and to the trailer. And you will also need a brake controller. Since your Terrain already has a 4-Way you will just need # ETBC7 to add the 7-Way. I have included some links that show and explain the ETBC7 installation as well as the brake...
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  • Hitch & Recommended Bike Rack For 2017 GMC Terrain
  • There should be a panel in the center of your rear bumper. On each end you'll see tabs that will release the cover. If there isn't a hitch present, we have one for you # e98865. As far as bike racks go, you can't go wrong with the Kuat Transfer # KU84FR. It's easy to use and will work with both your bike and your daughters bike as well. So simple, even she could load her own bike up! It comes with locks too just in case you're worried about your bikes or the rack running off. I've included...
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  • 2013 GMC Terrain 235/55 R18 Snow Tire Cable Recommendation
  • The cable set part # PW1046 is a fit for your tire size of 235/55R18 so they are going to fit the tires and work well. Since your vehicle states no chains the cables are a great solution since they do not require as much clearance. Be sure to check your owners manual for any tire chain restrictions as well.
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  • Availability of Air Bags for 2019 GMC Terrain
  • For air bags on your 2019 GMC Terrain we have the Air Lift 1000 Air Helper Springs for Coil Springs - Rear # AL39PD. These will fit inside of your rear coil springs to provide additional support when hauling heavy loads. They will keep your vehicle level and reduce tire wear and suspension strain. The air bags feature a polyurethane construction and are made in the USA. They also have a load-leveling capacity of 1,000 lbs and come with a lifetime warranty.
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  • etrailer vs. Curt Hitch on a 2013 GMC Terrain
  • In terms of quality both etrailer and Curt make very reliable trailer hitches and honestly neither is going to wilt under the elements in the northeast U.S. When choosing a hitch what people generally look at is capacity and, like you asked, if modifications are going to be made to their vehicle. The etrailer # e98865 and the Curt # 13591 are basically identical hitches except for their finishes. The Curt has a glossy black finish and the etrailer has a matte black finish which I think...
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  • 2015 GMC Terrain Roof Rack Recommendation for Thule Hullavator
  • For your 2015 GMC Terrain the roof rack I'd recommend for use with the Thule Hullavator part # TH898 is the Thule WingBar part numbers # TH711220 and # TH710401. This is a confirmed fit for your Terrain and will work really great with the Hullavator since Thule makes this too. The WingBars are aerodynamically shaped too which helps prevent wind noise. This configuration has been tested to work on your vehicle and with the Terrain so it will work really well overall.
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  • Base Plates, Light Kit, Safety Cables, and Braking System to Flat Tow a 2011 GMC Terrain
  • To flat tow your GMC Terrain, there are several components that you will need. First, you will need base plates installed on the Terrain. The correct base plate kit for your Terrain is # 523163-1. I have included a link to the installation details below. These EZ style base plates are compatible with the Falcon All Terrain to bar # RM-522. I have included a video review and installation detail links below. Next you will need a light kit and safety chains or cables as required by law. For...
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  • Recommended Trailer Hitch Receiver and 4-Way Vehicle Wiring Harness For a 2024 GMC Terrain
  • I recommend our etrailer Trailer Hitch Receiver # e59ZR for our 2024 GMC Terrain. Our receiver has the more popular 2" opening and a matte black finish which I feel gives a cleaner factory appearance. The T-One Vehicle Wiring Harness # 118285 is going to give you a 4-way flat connector. This is the connector most commonly found on small utility and boat trailers. It will also allow you to have Auxiliary Lights # C53201 for hitch mounted accessories.
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  • Trunk Mounted Bike Rack Recommendations for GMC Terrain
  • To see the trunk mounted bike racks that are a confirmed fit for the 2010-2012 GMC Terrian, click the provided link. I would recommend the Thule OutWay, part # TH45JV for a 2 bike capacity. Instead of the cumbersome straps and buckles that need to be adjusted each time the rack is installed or removed, the Raceway uses only 2 rubber coated straps, allowing it to be installed or removed in seconds. It uses the OneKey system to lock both the carrier and the bikes to deter theft. You will...
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  • How to Pick Out a Trailer Wiring Harness for a 2013 GMC Terrain
  • There are two trailer wiring kits available for your 2013 GMC Terrain without the tow package. The Curt kit part # 56094 that does not have a converter and the Tow Ready part # 118494 that does have a converter. Both are listed as fits so either would work, but the Tow Ready would be a safer option as it draws all of the amperage to power the trailer lights from the vehicle battery whereas the Curt powers the taillights by drawing from the taillight circuits. The drawback to the Tow Ready...
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  • Availability of Spare Tire Carrier that Installs in Hitch and Has Hitch Opening for Tow Bar
  • We do have the Roadmaster Spare Tire Carrier part # RM-195225 which installs in a vehicle hitch, allows a spare tire to be mounted to it, and then has a hitch opening that can be used to install a tow bar.
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  • What Hitch and Wiring do you recommend for my 2014 GMC Terrain
  • The etrailer Trailer Hitch Receiver part # e98865 is a perfect hitch for you. It has plenty of weight capacity and looks really nice on the vehicle with its matte black finish. If you're hauling it on a trailer the Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # 118494 will give you a working 4-way flat trailer connector to operate the lights. The etrailer Ball Mount Kit for 2" Hitches part # 989900 is a great way to have any ball and ball mount combo you...
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  • How Does a Brake Controller Install on a 2017 GMC Terrain
  • The 2016 GMC Terrain/Chevrolet Equinox does not have a brake controller port. The process to install a brake controller on this vehicle is fairly complex, especially when compared to the conventional process which works on most vehicles. This process is so in depth that there was a technical service bulletin (TSB) created just for this, 18-NA-123. If you are experienced with 12 volt electricity and vehicles in general then you should be able to complete the process in around a few hours....
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  • Fuse Bypass For a 2011 GMC Terrain for Flat Towing Behind a Motor Home
  • For your 2011 GMC Terrain you will need to use the Roadmaster FuseMaster fuse bypass switch, # RM76511. I have also included a link to the installation instructions for you. The use of this product will make it easier to bypass the fuse by allowing you to bypass it instead of pulling it every time.
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  • Recommended 2 Inch Trailer Hitch for 2018 GMC Terrain without Drilling
  • Yes, for your 2020 GMC Terrain I highly recommend the Draw-Tite Max-Frame Trailer Hitch Receiver # 76419. This custom 2" hitch will line up to existing holes on your Terrain's frame rails for a simple bolt-on, no-drill installation. It also features a sleek hidden crosstube design that allows only the 2" receiver to be seen from the rear, providing you with a clean factory-like appearance. I have attached a couple images below so you can see exactly what I mean. This Class III hitch has...
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  • Hitch for my 2020 GMC Terrain with the Furthest Rear Pin Hole Location
  • Of the hitches available for the 2020 GMC Terrain the Curt Trailer Hitch Receiver part # C13307 has the furthest rearward pin hole location giving you the best chance for getting the tailgate open with your bike rack when you need to. The pin hole is 4" from the rear edge of the bumper Versus the DrawTite part # 76419 which is at 5". I have included a video for you of the installation process to check out. If you need wiring for towing a trailer the Curt T-Connector Vehicle Wiring Harness...
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  • Should I Use a Powered Converter 4-Way Flat Vehicle Harness On My 2010 GMC Terrain?
  • Your 2010 GMC Terrain does not require a converter for the 4-way trailer wiring. I do always recommend using a powered converter if one is available. Which for your Terrain the Tekonsha T-One Vehicle Wiring Harness # 118494 is available. For me the converter is protecting the factory wiring harness if there was ever a failure in the lighting system on the trailer. It also cuts down on the amount of power going through the tail light wiring on your Terrain. While it does require extra...
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  • Yakima Roof Rack Recommendation for a 2014 GMC Terrain
  • Yes, the Yakima Roof Rack you referenced part numbers # Y00408, # Y28TR, # Y03536, and # Y06146 has been confirmed as a fit for your 2014 GMC Terrain and would come with everything needed to install crossbars on your vehicle. This rack mounts directly to the roof of your vehicle and does not require any rails be there prior.
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  • Trailer Wiring Recommendation for 2015 GMC Terrain that Doesn't Require Lengthening Wires
  • There are a couple reviews on the # 118494 that indicate that a few of the wires were too short and needed to be lengthened. For a trailer wiring harness for your 2015 GMC Terrain that has been confirmed as a fit and would be long enough the part # 56094 would work great for you. I attached an install video for this for you to check out so that you can see that it would install without having to lengthen any wires.
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