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Expert Answers about Flat Tow Brake System


  • Brakes are Activating on a 2023 Chevrolet Equinox When Flat Towing
  • Without more information on what you are referencing, it is hard to give a great response. It sounds like you are talking about flat towing your 2023 Chevrolet Equinox. But, that means there could be two separate braking system that are the issue. That could be the braking system of the Equinix or the supplemental braking system causing the Equinox brakes to turn on. I could not locate a supplemental braking system purchase from us, so there are two different styles it could be (fixed...
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  • Brake Lights Not Working on 2015 Jeep Grand Cherokee when Flat Towed Behind 2003 Phaeton RV
  • If just the brake lights are not working on your 2015 Jeep Grand Cherokee when it is being flat towed behind your Phaeton RV, I recommend using a circuit tester like # PTW2993 to first test the functions on the trailer connector at the rear of the RV. Check to make sure all of the needed functions are providing a circuit, particularly the stop light function. Also, if your RV has separate wiring, you will need to install a converter like the Roadmaster Brite-Lite # RM-732. This is needed...
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  • Troubleshooting Brake Lights and Turn Signal Lights on Flat Towed 2013 Jeep Wrangler
  • The Jeep requires the diodes integrated in its wiring to allow the brake light and turn signals to show exactly as they would if you were driving the Jeep. It sounds like you have the turn signal and not the brakes or the brakes and not the turn signal...and you should have both. I recommend checking out the Roadmaster Brake-Lite Relay Kit for Towed Vehicles # RM-88400 which keeps your towed car's brake signal from overriding the turn signal sent by your RV and allows signal lights on towed...
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  • Can the 2019 VW Jetta Be Flat Towed?
  • Unfortunately, it's not quite that simple because not all FWD vehicles have transmissions that can be disengaged that will allow for flat towing. You'll want to consult your owner's manual for confirmation but from what I've found it looks like the 2019 VW Jetta, which is FWD, can only be towed on a tow dolly like the Demco Kar Kaddy # DM9713045 . For vehicles that are able to be flat towed, you need a number of components in order to flat tow including base plates, a compatible tow bar,...
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  • Does The Battery Need To Be Disconnected To Flat Tow A 2022 Lincoln Nautilus
  • Typically the requirement to disconnect the battery is from the manufacturer but I looked through the owner's manual for both the 2021 and 2022 models and they don't list anything about disconnecting it under the recreational vehicle towing section. Roadmaster, one of our suppliers, does has a note saying that the battery should be disconnected with part # RM-766 to flat tow and that there could possibly be more than one battery in the vehicle that will need to be disconnected. I've never...
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  • Where is Flat Towing Procedures Listed for a 2014 Nissan Frontier Manual Transmission
  • As long as you followed the flat towing procedure that was outlined in the owners manual of your 2014 Nissan Frontier the dealer cannot blame the braking problem you have on how you flat towed your vehicle. I could see steering components or tires getting damaged from having the key of the vehicle in the wrong position (if that were the case), but not braking parts. But once again, if you followed the instructions for flat towing that were in the owners manual of your vehicle Nissan can't...
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  • How to Isolate Stop Light Signal for 3rd Brake Light on 2017 Ford Fusion
  • Thank you for all of the information about the wiring you are using for flat towing your 2017 Ford Fusion. If you are using the Curt 2-To-3-Wire Tail Light Converter # C56196 in conjunction with a wiring kit like the Tow Ready # TR118821 it should work properly to isolate the 3rd brake light signal but you need to make sure that you are connecting the right and left turn wires to something on the output side. A common misconception is that you can just cap those wires off but when I've...
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  • Towed Ford Explorer Battery is Dead After A few Hours of Flat Towing Behind Itasca Motorhome
  • The Roadmaster InvisiBrake Supplemental Tow Bar Braking System # RM-8700 is designed to deliver a trickle charge from your running motorhome's electrical system to your toad's battery while you're underway. This power feed is dependent on good ground connections between both the motorhome and InvisiBrake, and between the InvisiBrake and the toad. You can check to make sure all electrical connections are sound and that there is no corrosion on connectors that might be impeding the charging...
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  • Troubleshooting Battery Dying When Flat Towing 2019 Ram 1500 Laramie
  • According to my research you don't need the Charge Line Kit # RM-156-25 for a 2019 Ram 1500 Laramie since the ignition is turned off. You can still install this kit to help keep your battery charged if you'd like but since it isn't needed it leads me to believe that something may have possible been installed incorrectly because your battery shouldn't be dying when flat towing unless you were using a braking system like the Blue Ox Patriot # BLU37TR and doing a lot of braking throughout...
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  • Troubleshooting the Brake Lights Not Coming on in my Flat Towed Vehicle
  • It sounds like you are more likely having and issue with your tow bar wiring rather than the Demco SBS Air Force One Supplemental Braking System # SM99243. You can test this by testing your Air Force One system. Depress the break and verify that the LED indicator light is coming on and that the actuator is pulling the brake pedal in your towed vehicle. If that is happening, then the Air Force One is working properly. The Air Force One is not what provides power to illuminate your brake...
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  • Troubleshooting Toad Supplemental Breaking System when using Tow Haul in Winnebago Vista Motorhome
  • It sounds like the Roadmaster Even Brake Portable Supplemental Braking System # RM-9400 locked up your brakes if you had flat spots on your tires. This is most likely the system sensing the deceleration and braking and because of the steep grade kept applying the brakes sensing it needed to help stop your motorhome. I reached out to my contact at Roadmaster and they confirmed that the Accelerometer was continuing to apply braking because it was sensing that brakes were needed. It appears...
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  • Troubleshooting A Brake Buddy Stealth That's Activating The Brakes When Not Flat Towing
  • If your Brake Buddy Stealth Supplemental Braking System # HM39530 is activating when you're not even connected to the towed vehicle then you either have an issue with the 7-pin connector or the breakaway switch. The most common cause for this issue from not covering the 7-pin connector on the towed vehicle with the dust cap to deactivate the system. Since everything is ran through the 7-pin connector, including the breakaway switch, I also recommend checking your wiring to ensure there...
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  • How To Prevent A Towed Vehicle Brake Light From Overriding The Signal From The Motorhome
  • You're needing a Roadmaster Brake-Lite Relay Kit for Towed Vehicles # RM-88400 to prevent your 2016 Ram 1500's brake signal from overriding the turn signal that comes from your RV. When your towed vehicle is properly wired and connected to your RV, its indicator lights will illuminate as you engage the turn signals in your RV. However, if you have only a four-diode system in place, the turn signal will be overridden by your towed car's brake signal as soon as your supplemental braking system...
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  • Parts Needed to Flat Tow 2017 Jeep Grand Cherokee Limited Behind RV
  • The first thing you need to flat tow your 2017 Jeep Grand Cherokee Limited is a base plate kit like the Roadmaster part # RM-521440-5 which is a confirmed fit. I attached an install video for this for you to check out too. In addition to the base plates, you will also need a compatible tow bar, safety cables, lighting, and supplemental braking to flat tow your vehicle. The most popular compatible tow bar is the Falcon All Terrain, # RM-522. This has non-binding arms which makes the setup...
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  • How to Power Electric Braking System When Ford Focus Battery is Disconnected
  • Sorry to hear about your mishap. I cannot offer legal advice, and that is what you may need in addition to the transmission replacement, but it sounds like your installer would be the one with whom you need to have a "heart-to-heart chat". We are familiar with this issue about the owner's manual saying one thing about battery disconnection for flat towing and the requirements for your specific flat tow setup, such as when using a 12V powered braking system like the Roadmaster Even Brake...
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  • What Parts do I Need to Keep My Battery Charged on My Flat-Towed 2016 GMC Yukon?
  • If you are looking to maintain battery power on your flat-towed 2016 GMC Yukon, I recommend the Roadmaster Battery Charge Line Kit for Towed Vehicles # RM-156-25. This kit will plug into the center pin (12v) on the connector that is on the front of the Yukon. Some braking systems have an integrated charge line, but not all systems have these. It sounds like your system does not have one. If you do not already have power from the RV, you will also need the # RM-156-75. I went ahead and...
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  • Brake Lights On Jeep Do Not Work While In Tow Mode
  • The issue you are having with your brake lights will have more to do with the flat-tow wiring harness rather than the supplemental braking system. That said, the stop light switch circuit does go dead on certain Jeeps while in tow mode so the incorporation of a Roadmaster Stop Light Switch Kit is needed. If you can give me the year and model of your Jeep I can then confirm if this is the case and if so, what the correct part number is. Also, the SMI Stay-IN-Play DUO Supplemental Braking...
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  • Troubleshooting 4-Pole Flat Trailer Connector on 2005 Ford Explorer Sport Trac
  • For the 4-way, I would recommend using a circuit tester like part # PTW2993 and testing the wires before they reach the connector. This will rule out the connector itself as being bad. If the 4-pole connector is an aftermarket addition, trace each wire leading from the connector to ensure that they are still connected. If the trailer connector is factory installed, it might be a blown fuse. The fuses that protect the towing circuits are usually located under the hood, it is possible you...
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  • What is Shifter Process to Allow 2019 Jeep Cherokee Trailhawk to be Flat Towed
  • I have attached for you below the recommended procedure to flat-tow a 2019 Jeep Cherokee Trailhawk per the owner's manual. The process does look elaborate and silly...but following these steps to the letter allows the transmission to be in a position where the wheels can turn without causing any damage to anything. 1. Bring the vehicle to a complete stop on level ground, and shift the transmission to park. 2. Turn the engine off. 3. Turn the ignition to the on/run mode, but do not start...
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  • Troubleshooting Motorhome Air Brake Valve for Inflating Quad Tires
  • Air tow fittings use a quick release not a threaded fitting like you referenced. You can see these on the Demco SBS Air Force One Supplemental Braking System for Motor Homes with Air Brakes - Proportional # SM99243 which is the braking system you would use in the flat towed vehicle. If you wanted to air up your quad tires using those valves, you would need the Reducer for Bulldog Winch Air Tank - 1/4" NPT Male to 3/8" NPT Female # BDW42038 and then the Quick Connect Coupler for Bulldog...
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