Expert Answers about GMC Sierra 2500

• Troubleshooting LED Trailer Lights Causing Error Code On 2021 GMC Sierra Denali 2500
• To correct the issue the couple is having powering LED trailer lights with their 2020 GMC Sierra Denali 2500 I recommend going with the Trailer Connector Adapter w/ Lamp-Out Sensor Bypass # 20142 due to it being a simple plug and play adapter that installs in the vehicle's 7-way connector and you simply plug the trailer's 7-way connector into it. The built in system will prevent the issues you are having and will allow you to move the adapter to a different vehicle if needed. The Optronics...
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• Solution for Draw-tite Front Mount Hitch Not Fitting With Slight Gap
• Sometimes hitches can get slightly bent during shipping and this can be fixed by bending the hitch back into place as long as the hitch only has a slight bend to it. If yours isn't lining up I can almost guarantee that is what happened. Some people will use open steps for leverage, vices and even car jacks to apply controlled force to bend the hitch back. In your case you could start all of the bolts and then torque them all down to allow the hitch to bend back into place. You will want...
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• Cargo Lights on New Enclosed Trailer Blow Fuse
• If the fuse only blows after you turn the lights on, then I'd be willing to bet that there is a short on one of the wires somewhere between the switch and the lights. Unfortunately the only way to check this is to trace all of the wires for the lights looking for any sections that are damaged, frayed, or pinched that could be touching a metal part of the trailer. When I see this on newer trailers, it is often times due to the wires rubbing against a sharp metal edge of the sub-frame that...
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• Troubleshooting LED Trailer Running Lights Randomly Turning Off On 2020 GMC Sierra Denali 2500
• There is a connector that some vehicle's require to use LED trailer lights which is # C35FR for 7-way to 5-way/4-way or # 20142 for 7-way to 7-way. The way you would know if you need one of these adapters is your vehicle would display an error code when plug in to the trailer due to LED lights having such a low amp draw compared to incondessiant lights. Since your running lights are working sometimes and you did not mention an error code in the truck I suspect you have a different issue...
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• Why Did 225/75-15 Tires on 5th Wheel Fail In One Day
• You'll want to keep your tires inflated to the maximum pressure listed on the tire sidewall, this goes for any trailer tire unless the tire manufacturer does load testing at various pressures. The main cause of premature tire failure is excessive heat build-up, which can be caused by: • Underinflation. Always keep trailer tires inflated to the max pressure listed on the sidewall (except for the exception mentioned above. • Overloading the tire. Ideally, you want the combined load...
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• Troubleshooting A Furrion Vision S Camera System That Intermittently Loses Connectivity
• If you installed the PWM Filter # VGR64VR on your Furrion Camera System # FOS05TASF and you're still having issues then I recommend unpairing the camera and monitor and redoing the pairing process. I also recommend checking the antenna and ensuring that it's fully screwed into the camera and facing up. With a 492' range it shouldn't really matter but it's worth trying. Is the camera only powering on and connecting when in reverse or is it just randomly connecting while driving around?...
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• Blowing 30-Amp Relay on a 2014 GMC Sierra 2500 if Trailer is Connected to Factory Brake Controller
• If the factory brake controller in your 2014 GMC Sierra 2500 has a switch to select its operating mode, either for electric trailer brakes or for an electric-over-hydraulic (EOH) type actuator, make sure it is in the correct position for the type of brakes on the trailer that is connected. Aftermarket controllers like the popular and reliable Tekonsha Prodigy P2 # 90885 will work with both types of brakes and have such a selector switch. If your controller has one it needs to be in the...
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• Interior Lights On A Hawk Trailer Pulled By A 2021 GMC Sierra 2500 Not Working
• The number 63 fuse is the correct fuse to check on your 2021 GMC Sierra 2500, and it should be your trailer battery circuit. Since you said you checked out the #63 fuse, and it's all good, I recommend checking your 7-way connector/receptacle. You'll want to ensure that your connectors are free from debris and not corroded. You'll then want to use a circuit tester like the Hook Probe Circuit Tester # PTW2993 to test for continuity at the 1 o'clock position on your vehicle side 7-way connector. Or Even...
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• Removing Damaged Curt Gooseneck Hitch Ball From Factory In Bed Hitch System On a 2020 GMC 2500
• If you still have a portion of the latch for the Curt Pop-In Ball # C60629 protruding out of the top of the ball you can try to grab it with pliers, pull up and rotate it to unlock the ball bearings. Depending on how long the ball has been in the bed there may be some surface rust inside the ball which would make it difficult to operate. You can spray some penetrating oil in the ball to try and free the ball. If there is not part of the latch visible from the top you will need to go below...
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• Troubleshooting Aries ActionTrac Motorized Running Board Not Working On Passenger Side
• As you only have the passenger side not working it sounds like their is either damage to the wiring or the step motor. First you will want to use a Test Light # PTW2993 to check for power on the harness of the Aries ActionTrac Motorized Running Boards # AA3047902. If you do not have power at the motor then you will need to follow along the harness to the control board checking for where it loses power. If there is still no power at the control board check the connector to ensure it is not...
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• Solution For A 2022 GMC Sierra 2500 That Is Causing LED Trailer Lights To Flash
• The reason your trailer's lights are flashing is usually attributed to too little resistance given off of the tow vehicle to measure weather the light or not. An easy way to fix this is to use a 7-way with integrated load resistors like the 7-Way Trailer Adapter for Towing Trailers with LED Lights # C57003. This adapter will plug directly into the existing 7-way on your 2022 GMC Sierra 2500 and will provide a new 7-way socket that will recognize LED lights.
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• Could Switched 12 Volt Power Run to Brake Assemblies of Trailer
• Your brake controller has that feature built into it with the manual override lever but there isn't a reason why you could run a separate override switch that would put 12 volts on the brake assemblies. You should note that they would lock up immediately which would most likely be dangerous so I wouldn't recommend this as a good idea.
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• Troubleshooting An Air Lift WirelessONE Compressor Remote That Wont Pair
• The Air Lift WirelessONE Compressor System for Air Helper Springs # AL25980 has an optional ignition source connection makes the compressor "sleep" while the ignition is off to prevent battery drain so you most likely just need to place the ignition in the on position to wake up the compressor and then try pairing your remote.
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• Troubleshooting a Curt A16 5th Wheel Hitch Not Hooking Up Smoothly to a Reese Sidewinder
• I have a suspicion on what the issue could be. There is a good chance that the 5th wheel hitch and wedge are not compatible with the Sidewinder. It at all comes down to what Sidewinder you have. If your Sidewinder is the more current model (68220), then the Curt A16 5th Wheel Trailer Hitch # C74FR and Sidewinder Wedge for Curt A Series 5th Wheel Trailer Hitches # C16992 would not be compatible. There was a design change between the Sidewinder generations that causes the wedge to sheer...
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• How To Secure The SM Arnold RV Chenille Microfiber Wash Mop Head To the Handle
• The mop head for the SM Arnold RV Chenille Microfiber Wash Mop # 38185-332 is a rubber material with a slot that matches up and holds the ring at the end of the handle to the mop head. Since there isn't a bolt to tighten these too items together the only way to really secure it would be to drill a hole through the rubber boot and through the handle itself and slip a carriage bolt through and secure it with a nut.
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• Troubleshooting Gooseneck/Fifth Wheel 7-Way Install Where Left Turn Signal Stopped Working
• Does the left turn signal work on the 7-way that is at the rear of the truck? If so then the problem is that the connectors aren't making decent contact. Try uninstalling the # 41157 and testing to see if the left turn circuit works on the factory 7-way with a circuit tester like # PTW2993. If it does work then the problem is either in the connections made when installing the connector or somehow the connector is bad (not likely). If the turn signal on your truck isn't working you would...
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• Troubleshooting Running Lights Come On Then Shut Off On Trailer
• It sounds like you either have a weak/bad ground or your lights are drawing too much power. In order to find the problem lets start by double checking the connector on your 2020 GMC Sierra 2500. Using a circuit tester like # PTW2993, check for power on the running light circuit. More than likely you have constant power here and the issue is on the trailer side. If it is on the trailer side I would start by inspecting the connector. Make sure it is free from debris and corrosion. From...
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• Troubleshooting Trailer Brakes Not Working
• There isn't a lot of information to go on there, so if the trailer brakes do not work on when towing with your truck, there are a number of troubleshooting steps you can take, which I'll outline for you. You will need to find out if the issue is on the brake controller, truck, or trailer. To test the brake controller, sever the blue wire a couple inches from the back of your controller. Then use circuit tester # PTW2979 to test the end of the blue wire coming out of the controller. It...
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• Furrion Vision S Wireless RV Camera System Not Pairing to 2022 GMC Sierra 2500
• We have an easy solution for you, it is the 7-Way Vehicle Power Adapter w/ Power Switch for Furrion RV Observation Camera, # FR87PR. The cause for your system failing to pair, is low power from your GM vehicle. This issue began with most 2019 GMC and Chevy trucks when GM redesigned the lighting circuits, there is no longer enough power to properly supply the Furrion Vision S Wireless RV Camera Systems such as your, # FOS43TASF. Please note the linked product review video.
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• Will the Furrion Adapter Work with My 2021 GMC Sierra 2500?
• The Furrion 7-Way Vehicle Power Adapter for Furrion RV Observation Camera # FR87PR will work with your 2021 GMC Sierra 2500.
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