bing tracking image

Filter Questions and Answers:

reset filter

Expert Answers about GMC Sierra 1500


  • Furrion Vision S 5 Inch Monitor Won't Pair
  • There isn't a flashing light or something when trying to pair the Replacement 5" Monitor for Furrion Vision S Wireless RV Camera System # FR97FR. What Furrion says is that if the camera and monitor won't pair, first ensure the camera is receiving power during the pairing process, because if it is not, it won't pair. The camera being powered on will be indicated by an LED light. Also make sure you have the right camera selected for the pairing process on the monitor, and finally make sure...
    view full answer...

  • Potential Issues if a Demco Air Force One Braking System is Engaging the Parking Brake on a Sierra
  • I have not come across this being an issue when using the Demco Air Force One Supplemental Braking System # SM99243 in your 2023 GMC Sierra 1500 before. So I went ahead and reached out to the manufacturer to see if they have come across this before and I have included what they were able to tell me below. "It sounds like when the customer disconnects the negative cable, the truck is still finding a ground through either the tow bar or lighting cables. As a result the truck acts as if...
    view full answer...

  • Troubleshooting EC Error On Firestone F3 Compressor System and Compressor Constantly Running
  • The EC code for the Air Command F3 comes on when the compressor runs for more than 4 minutes. I recommend starting with spraying a soapy water mixture on the air springs and all the air lines and connectors going to the compressor and manifold. If you find a leak in either the air line or one of the connectors it will need replaced. Next you will want to check along the Wiring Harness # F2135829491 for any shorts that would cause the motor to stay running. You can also have the compressor...
    view full answer...

  • Will Switching to LED Running Lights on Trailer Pulled by 2019 GMC Sierra Fix Them Going Out
  • First, thank you for your detailed explanation, it was really helpful. And I think you hit the nail on the head with what the problem is in regards to your running lights going out when connected to your 2019 GMC Sierra. Something we have seen, especially with newer pick-ups, is that their factory trailer wiring is more complex and sensitive to trailer wiring, which is why when you unplug some of the lights they still work fine, but the full 13 lights is causing an overload. So while you...
    view full answer...

  • Troubleshooting Solera Power Awning That Stopped Working
  • There aren't any fuses in the motor or arm. It is possible that the motor burned out or the drive head gears # LC353964 have gone bad. If you need a replacement motor then you will use the Solera Power Awning Replacement Motor # LC266149. The best way to test is to remove the head housing and use a circuit tester like # PTW2993 to check the wires going into the motor for power. If you have power going into the motor when you press the switch then you know that the motor is bad. If...
    view full answer...

  • Troubleshooting Trailer Lighting Not Functioning on a Trailer with Damaged Wiring
  • It sounds like the T-One Vehicle Wiring Harness # 118379 that you referenced is installed correctly and is functioning properly. It also sounds like the trailer wiring issues you are experiencing are related to the damaged ground wires you have on the trailer. If you clean up the wiring and make sure everything is grounded properly your trailer lights should begin to function properly. I attached a couple FAQ articles on trailer wiring and 4-way troubleshooting for you to check out as well.
    view full answer...

  • Reprogramming A Superchips Flashpaq F5 Performance Tuner
  • I believe this problem stems from you programming your Superchips Flashpaq F5 Performance Tuner - GM - Gas, part # SU2847, with the magnetic shocks on your vehicle. When you removed them your vehicle the tuner limits your speed because it believes that something is wrong with your suspension. You will have to contact Superchips with your Flashpaq model and serial number and they will take it from there. I believe they will have to reprogram it to stock and that should get rid of the speed...
    view full answer...

  • Troubleshooting Putco Optic 360 High Power LED # P250001W not Fitting on a 2014 GMC Sierra 1500
  • Putco would know if it's possible, they have designed several HID bulbs like the part # P250001W that you have and if they say that part of the connector is removable I would believe them. Try it first and see if you are able to pull it off.
    view full answer...

  • Troubleshooting Curt TriFlex Brake Controller Flashing After Ignition Is Turned Off
  • It is not normal from what I can read in the instructions for your Curt TriFlex Trailer Brake Controller # C24VV to flash just because your 2019 GMC Sierra 1500 ignition is switched off. To determine if you have a defective controller you will want to take a Test Light # PTW2993 to the red wire of your brake controller to determine if the brake switch on your Sierra is activating. This would cause your controller to flash if the brake switch or wiring to it is faulty. I do see that...
    view full answer...

  • Troubleshooting Curt 5th Wheel Brackets And Rails That Aren't Lining Up During Installation
  • The Curt Custom Fifth Wheel Installation Kit for Chevy/GMC # C16400-204 have custom brackets that will not work with any Denali models so if your 2015 GMC Sierra 1500 is a Denali then these brackets will not fit correctly and line up with the rails. When measuring the 47.5" for the back rail did you measure from the tailgate side or the cab side? You'll need to measure from the tailgate side for a correct fit. You'll also want to ensure that the rails are equal distance on each side from...
    view full answer...

  • Troubleshooting a 2019 GMC Sierra 1500 Getting a Check Trailer Wire Error Message
  • Those particular messages are often times a result of an issue with the brake control power output wire (blue wire). Since I am not sure what brake controller you are using or if it is an OEM controller, you will want to test that wire to make sure it is getting power. This can be done using a Hook Probe Circuit Tester # PTW2993. Use the manual override on the brake controller and use the # PTW2993 tester to verify that the wire is getting power. Since it specifically mentions the trailer...
    view full answer...

  • Troubleshooting Signal Issues With A Furrion Vision S RV Backup Camera System
  • Newer GM trucks like your 2021 GMC Sierra 1500 have PWM wiring which doesn't supply a steady 12v to the camera of your Furrion Vision S system # FOS43TASF, which is why you're not getting a signal. To solve this issue you have two options: Option 1: By using the 7-Way Vehicle Power Adapter w/ Power Switch for Furrion RV Observation Camera # FR87PR. This adapter will send a steady current to the camera allowing you to receive a signal to your monitor. The male end will plug into the 7-way...
    view full answer...

  • Troubleshooting a Furrion Back Up Camera that Will Not Turn On But Will Work on Another Truck
  • Given the information you provided about the camera working fine when plugged into the cigarette lighter and on another truck, it definitely seems like it is most likely an issue with your truck and the camera not getting enough power. You can use a Circuit Tester # PTW2993 to check your 7-way pins and the wiring behind your 7-way to try and locate a wiring issue that could be causing this issue. I would start with the 7-way pins, it could be something as simple as giving the pins a good...
    view full answer...

  • Troubleshooting Trailer Power Issues on 2015 GMC Sierra 1500
  • It sounds like there could be a main fuse or relay that may be in the power line prior to those fuses. I recommend checking your owners manual for more insight. I assume based on my research your 4 fuses are mini fuses numbers 14, 15, 16, and 17. Check relay 64 as well. I don't believe you've messed up your fuse box, but I recommend taking it to a professional if you have issues after checking these. I assume your trailer has a wiring issue that caused those fuses to blow, so I recommend...
    view full answer...

  • Troubleshooting Trailer Lamps on Ranger Boat Trailer Pulled by 2021 GMC Sierra That Aren't Working
  • The most likely cause of what you have going on is a poor ground connection on the boat trailer. Some vehicles are more picky about ground connections than others, which would explain why the boat trailer is working well with your older truck but not your 2021 Sierra. The most likely trouble spot is the main ground where the trailer connector grounds to the trailer frame. This can usually be found on the trailer tongue, simply trace the white ground wire from the trailer connector to locate...
    view full answer...

  • How to Tighten or Remove the Ball Lock Pin on Rapid Hitch Adjustable, Aluminum Ball Mount # AM3461
  • On the Rapid Hitch Adjustable, Aluminum Ball Mount # AM3461 there is that pin on the ball part of the assembly that has a threaded hole in it. That threaded hole should be visible when the pin is in there correctly. You can use a 1/4 inch screw or bolt to thread into that hole and then turn the pin so that it goes in further and clears the path for the larger pin that holds the ball portion to the shank. Instructions are not included like you said. This includes the one that I was inspecting...
    view full answer...

  • Troubleshooting Melted Trailer Breakaway Wiring
  • Melted wires is typically due to a short. It's hard to say exactly what caused your short but you will need to check wiring of your breakaway setup, specifically where the wires connect to the battery, to see if you can find a short and fix as needed. If I had to guess it sounds like the wire that attaches between the switch and the battery has a short to the frame of your trailer and that is what melted it.
    view full answer...

  • Inner Fender Clearance Troubleshooting for BW Turnover Gooseneck Hitch in 2014 GMC Sierra 1500
  • I spoke to my contact at B and W and she told me that on some vehicles the only option is to trim the inner fender. I wish I had a different option I could recommend for you like a different handle for better clearance, but at this time there isn't a product available for that purpose.
    view full answer...

  • Running Lights Not Working on 2018 GMC Sierra With Roadmaster Diode 7-Wire to 6-Wire Wiring Kit
  • First of all, thank you for taking precautions to dinghy tow your 2018 GMC Sierra as safely as possible, and I think we can help you out with the issue you are having with the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 and Brite-Lite Wiring Converter # RM-732. Based on what you said, since both your brake lights and turn signals are working fine, and only your running lights being problematic, I think we can easily narrow down the issue to a problem with the jumper...
    view full answer...

  • Enclosed Trailer Interior Lights Not Working
  • Many interior trailer lamps are tied into the trailer's running lamp circuits. Try operating the lamps with the vehicle running lamps switches on. You'll also want to check for an interior switch for the lights which would usually be located just inside the door.
    view full answer...