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Found 9 results

  1. I have a 2019 Sierra HD with integrated brake controller. I'm towing a 5th wheel camper with two axles and electric brakes on each. Behind the camper I'm town an ATV trailer with two axles, but only one of them has an electric brake. Towing either of the trailers individually there are no issues with the trucks brake controller to control the brakes on the trailer. But with both trailers connected the truck won't apply any 'juice' to the brakes. It does nothing - no brakes on their trailer. When I manually apply the brake controller it does nothing. GM is telling me the truck is only designed to handle two sets of electric brakes and if I want to handle 3, I would need to add an after market controller to control the 2nd trailer separately. I can understand that, but does it make sense the trucks computer/controller would not apply any 'juice' to the brakes when it senses too much resistance via the 3 sets of brakes? Has anyone had this issue? How did you resolve?
  2. Hey everyone, I bought a 2014 Sierra 1500 back in September that was perfect EXCEPT it didn’t come with the oem brake controller. So I contacted my local GM dealer and gave them my vin. They looked up my truck and verified that it was built including the trailering package. This is important because I’ve seen that your trucks computer has to be programmed to accept the oem trailer brake controller, the piece isn’t just plug and play. So I verified this with the dealership. *I’m really thrown off that my truck has everything in the trailer package for that year except for the brake controller* I purchased an OEM piece from another GM dealer on eBay, ACDelco and everything. Plugged it in and haven’t received an alert but I also can’t tell if it’s working. I’m going to try plugging a trailer with brakes in and see if anything changes or if the controller does anything. But from what I’ve seen I should already see a new info page for the brake controller. I’ll update the thread later whether or not it worked, regardless I’ll leave the thread up in case anyone else is in the same boat. If anyone has suggestions or advice it would be much obliged.
  3. Hello New to the forum, just took delivery of a 2019 Tahoe LS Custom, and I made sure it had the Max Tow Package. this includes an integrated brake controller. I'm still breaking in the Tahoe, only 100 miles on it so far, but today I hooked it up to my trailer to check things out. All the lights work as expected on the trailer. Tested the built-in trailer brake controller: Pushing the gain controls or the manual lever triggers the display on the speedometer area. Pressing the gain up/down buttons produces what you'd expect on the display: gain increases or decreases. BUT: Moving the manual operation lever does nothing, the 'output' line on the display does not move. I would expect it should. With gain at max and the manual lever held to max, the trailer moves, brakes don't seem to be applied. They were working fine when I last used it with my prior vehicle. Tried with trailer mode engaged and displayed, no difference, trailer plugged in, no difference. I haven't done any more testing yet, thought I'd ask first if the output should move without a trailer attached. Or if there is something that needs to be configured to enable the controller, found nothing in the Owner's Manual about that... Any help appreciated...
  4. Hey Everyone. I’ve been looking at buying a diesel 6.6 L duramax denali GMC automatic transmission. Both of the 2014 models in separate cities I’ve looked over have two, 3/8 or 1/2 inch holes drilled on the left side of the steering wheel in the dash. I can tell these are not manufacturer drilled, and was wondering why I have seen this on that model twice. At first I thought to mount the trailer brake controller, but the holes are way bigger than necessary for screw mounting. The holes are big enough they are very noticeable, an ink pen could easily pass through. So question 1: why drill these two holes? Both models I’ve looked at have a trailer towing feature engaged by pushing the end of the shifter on the right side of steering wheel inwards. Would that not mean this model also comes equipped with trailer brake controller? I’m concerned the previous owners removed something I will need for trailer towing or some other feature of interest. I can see the gooseneck mount, or trailer hitch and the 7 way round plug, so I’m baffled on why these holes are there in the dash. Thanks in advance.
  5. Hi All. I have an '04 Avalanche Z71 with a hitch, and the auxiliary harness was included when I bought it this past summer. Here's what I want to do, and I'm wondering if any of you have done it or, or have any tips. I want to install a trailer brake controller, but want as slick and integrated an appearance as possible. I'm eyeing the in-dash cubby to the right of the HVAC and audio controls. Here's one install I found that's along the lines of what I want to do:
  6. I have a 2015 GMC Sierra SLT with just about everything on it except the built in factory trailer brake controller. So I bought an OEM replacement factory brake controller to install but now I heard that the vehicle's computer won't recognize the brake controller unless it's installed from the factory and it can't be re-programmed for that. Has anyone heard this about installing a factory brake controller after-the-fact? Any help or information you have would be much appreciated. Thanks!!!
  7. I was kinda bummed that my truck didn't have a intergrated brake controller but not the end of the world since I got the color, cab configuration, and motor I wanted. So i bought an aftermarket controller and did a bunch of online searching on the best way to mount it. None of the mounting options I found stood out to me, so I came up with my own. I used 1/2 inch spacers to make the controller visible, and drilled the holes in the metal dash bracket ( no way was i drilling into the dash its self!). I bought the plug n play wiring harness which was also really slick. You can see in the pics I can tilt it down to see it, and back up if I don't want to see the display (can just see the bottom of it). Best part is its still in reach of the override switch in case of an emergency.
  8. My 08 3500 is driving me nuts. Has factory brake controller which acts flaky. With trailer attached it sometimes (not always) doesn't recognize the trailer (5th wheel RV) attached. If I "short to ground" the brake voltage pin momentarily it will then always recognize the trailer and work just fine until the next time I turn off the ignition. Then it may, or may not, again recognize the trailer the next time I start the engine. With no trailer attached, just driving empty, it will sometimes give me a "check trailer wiring" alert even though there is no trailer in tow. Have double checked all wiring and connectors --- no loose wires or corrosion --- everything clean and bright.
  9. We have a 2001 Silverado 1500 that had the hitch and trailer wiring hooked up by the local dealer back in 2002. Our previous trailer didn't have electric brakes on it so we have no brake controller inside our truck. We have just upgraded our trailer to an enclosed 7'x14' trailer with electric brakes on it. Without the brake controller; we get power to the brakes and have them lock up when we step on the brake pedal. We are having a hard time figuring out how to hook this brake controller up to the existing harness. We have removed the cover to the external fuse box in the engine compartment, attached the red wire within the existing harness to the post and made sure there was the correct amp fuse in the box for the power. Utilizing the inside factory connect and junction box, we are getting power to the controller inside the cab of the truck when plugged in but it doesn't seem to make any changes to the braking force. It's like we still have a full 12V running to the brakes whenever we step on the brakes. Is there another wire (blue one that is by the red one built in to the junction box) that we need to hook up? Also, what is the best location and where should this wire go? I have heard conflicting info between a mysterious white wire and the dark blue wire that is in the 7 pin pigtail. I am confused as this pigtail when connected to the trailer provides full feed to all 4 electric brakes. Any help would be appreicated as we need to use this trailer this week to haul some items. Thank you in advance for you time and knowledge.
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