What you mention is pretty common. In areas where salt and other corrosive chemicals are used on the roads in the winter, corrosion and other goop can get built up in the nuts that are welded up into the frame to receive the bolts. An easy way to clean those out would be to use a round profile wire brush along with some spray lubricant. The brush on a battery terminal cleaner like # DW00254 works very well. Spray a bunch of the lubricant up in there and give each nut a good scrub. In some... view full answer...
The vehicle wire that needs to connect to the brake controller's red input signal wire is the one that goes to the cold side (load side) of the brake light switch. This is the wire that goes hot only when you press on the brake pedal but at no other time. A circuit tester like # PTW2993 will let you test to find this wire.
The remaining three wires from the controller connect as follows: the WHITE ground wire connects to battery ground terminal; the BLACK 12V power wire connects to the... view full answer...
The exhaust of your 2019 GMC Terrain does not need to be lowered to install the etrailer.com hitch part # e98904 that you referenced. While we don't have a hitch for your vehicle that has a 4-way mounting bracket we do have other solutions like the 4-way bracket # 18140 and # 18144. This will wrap around the hitch tube and give you a bracket like you are wanting.
For a 4-way then you'd want the part # 119250KIT.
If you wanted to do some towing you might be interested in etrailer ball... view full answer...
We have an easy solution to provide a stoplight circuit on your 2012 GMC Terrain with the Roadmaster Universal Stop Light Switch Kit # RM-751000. Some vehicles have a hard time finding the stoplight circuit but this switch solves the problem.
You are using the correct circuit on your Terrain and if it's not wanting to work consistently this would be only solution. view full answer...
We do have a trailer wiring harness for a 2020 GMC Terrain without the factory tow package, which is a universal splice-in kit. For that you'd need the Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector # C59236. view full answer...
Base plate installation can be challenging on any vehicle. I have linked the instructions for base plates # 523163-1 to the right so you can see what is involved for installation.
Roadmaster states Installation of most mounting brackets requires moderate mechanical aptitude and skills. We strongly recommend professional installation by an experienced installer.
I would say if you have any doubts about doing it yourself after looking over the instructions, a professional installation is... view full answer...
For wiring harness # C94FR you may not need the relays if they are already present on your 2018 GMC Terrain. If the wiring harness works, then you can just hold on to them as spares. If it is not working, then they will need to be installed.
Locate the fuse panel at the back of your Terrain. It is behind a little access plate on the driver's side. There are 3 relays for tow package wiring in this box. K1, K2, and K3. The relays will need to go in the K1 and K3 locations. The K2 spot is... view full answer...
The Curt Trailer Hitch Receiver # C98CR you were looking at will allow you to reinstall the OEM fascia on your 2019 GMC Terrain Denali as the hitch will sit underneath of the fascia.
The fascia never gets completely removed to install the hitch, just the screws are removed to allow you more room to access the bolts to mount the hitch to your vehicle.
If you can tell me what you are planning on using your trailer hitch receiver for I would be happy to confirm the best accessories for your... view full answer...
Nope! The 2 relays that come with and install on the Curt T-Connector Vehicle Wiring Harness # C94FR are all that you should need for adding a 4-Way connector on your 2022 GMC Terrain with the factory tow package. I also recommend checking out the Eclipse Magnetic Mounting Bracket # 306-X6019 so that you will have easy access to the 4-Way wiring right next to your hitch receiver.
If you don't already have a trailer hitch then I recommend the Curt # C77FR because it has a hidden crosstube... view full answer...
All of the torque specs for the Roadmaster EZ Base Plates # 523163-1 for your 2012 GMC Terrain are listed in the instructions which I've linked for you on this page. view full answer...
Use a circuit tester like part # PTW2993 on the wire in the # 11 terminal on the black BCM connector, as shown in the diagram I provided. The wire colors can vary during a production run, which is why we typically recommend that folks wire by function, not by wire color.
As an alternate method, you can use a fuse tap like part # F2526 on the CHMSL (center high mounted stop lamp) fuse in the fuse box. The lid of the fuse box should have a legend that will tell you which fuse location is needed. view full answer...
I do not have any vehicle specific instructions, because the part can be used on just about any vehicle.
I'd be happy to walk you through the process. You'll need the brake controller, like the # 5504 you were looking at, or a proportional controller like the Primus # TK90160. A proportional controller has an internal sensor that can determine how quickly the tow vehicle is braking. It will then send the appropriate amount of voltage to the trailer brakes, so the vehicle and trailer stop... view full answer...
Use a circuit tester like part # PTW2993 on the wire in the # 11 terminal on the black BCM connector, as shown in the diagram I provided. The wire colors can vary during a production run, which is why we typically recommend that folks wire by function, not by wire color.
As an alternate method, you can use a fuse tap like part # F2526 on the CHMSL (center high mounted stop lamp) fuse in the fuse box. The lid of the fuse box should have a legend that will tell you which fuse location... view full answer...
The Curt Vehicle Wiring Harness # C94FR that you referenced is supposed to be used if your 2019 GMC Terrain came with the factory tow package. If those fuse locations are empty, then it sounds like you don't have the factory tow package. As of August 2023, we do not have a wiring harness that will work for you.
If your Terrain is supposed to have the tow package, then you should have metal contacts where those relays install. Since you don't, I'd reach out to your local GM dealer to see... view full answer...
Kat's heater # KH11811 for a 2010 GMC Terrain with 3.0 liter motor installs in the block hole located at the right rear of the motor.
For the 2011 GMC Sierra 2500 it is going to depend on which motor is in it. If it is the 8.1 generation 3 or 4 motor then a heater will install either at the left rear or left front of the motor.
The 6.6 liter - right front
The 6.2 liter - left rear or left front
The 6.0 liter - left rear or left front
The 5.3 liter - left rear or left front view full answer...
Based on the info you provided I think I have determined that you are trying to wire your 2014 GMC Terrain for tow bar wiring with a diode kit like part # RM-154.
Your vehicle has combined taillights so you would need to just follow the instructions in the attached FAQ that I attached.
We do not know the specific wiring codes for your vehicle so the best recommendation I can give you would be to use a circuit tester like our part # PTW2993 to determine what wire carries what. view full answer...
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.... view full answer...
The GMC Terrain is the GMC equivalent of the Chevy Equinox. The Equinox has a known issue regarding the brake switch input that you are describing. Basically, it is not present at the brake switch wiring. You will have to get the signal from the body control module (BCM).
I have included a picture that should help. However, you will want to check with a GM tech to make sure the correct signal is in the same place on the 2014 models.
The purpose of the brake signal is to tell the controller... view full answer...
Given the age of your 2010 GMC Terrain you can safely assume that there will be rust and/or dirt trapped in the threads of the weld nuts on the frame.
You can use a spray lubricant product like WD40 or PB Blaster along with a stiff bristle brush to clean them. We have a helpful article linked for you to guide you through this process. It often takes more than one application of lubricant and multiple brushings to remove all the material from the threads. It is best to apply the lubricant... view full answer...
The problem you are describing is a text book example of road grime and corrosion pact threads in the weld nuts on your 2013 GMC Terrain. Going to a smaller diameter bolt won't work and would result in the loss of the hitch. The weld nuts will need to be cleaned out and then the regular hardware that came with the hitch will fit.
I have included links to both a help article and video explaining and showing how to clean out weld nuts. view full answer...
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