Expert Answers about Jeep JL Wrangler Unlimited

• Roadmaster BrakeMaster System RM-9160 in 2018 Jeep JL Wrangler Unlimited with Diode Kit
• The Blue Ox 4-diode tow bar wiring kit # BX8848 that you have installed in your JL Unlimited will not cause issues with the brake lights on the Jeep since it will be in Tow Mode when you are flat towing it. This will allow the motorhome to control the lights. In your 2018 Jeep JL Wrangler Unlimited the Roadmaster BrakeMaster System # RM-9160 will install using a Stop Light Switch kit # RM-751000 which provides a separate "brakes on" signal path back to your motorhome. To use this braking...
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• Wheel Chock Recommendation for Use with Off Road Jeep Trailer Parked on Incline
• For larger tires like you have, the Buyers Products # 337WC1086UWH would be best for chocking your tires. This being made of rubber means that it will have great traction on your driveway and won't slip.
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• Will Roadmaster InvisiBrake Work When Towed Vehicle Engine is Off and Power Brakes are Not Active
• I took a look at the online owner's manual for your 2018 Jeep JL Wrangler Unlimited and it does say to turn your engine off before flat towing. This does make pressing down on the brake pedal much more difficult but supplemental braking systems like the Roadmaster InvisiBrake # RM-8700 are built to accommodate this. If you have tried flat towing your JL and you are experiencing problems then please let me know. However if you just sat in your Jeep with the engine off and tried applying...
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• Will Installing Trailer Wiring Harness Void Warranty on 2019 Jeep Wrangler
• That is a great question. The good news is that consumers are protected by the Federal Magnuson-Moss Warranty Act. This act essentially states that if something were to break or go wrong on your Jeep and you take it in for warranty repair, the dealer must honor the warranty regardless of what modifications have been made unless the modification is what caused the issue. Installing an aftermarket wiring harness like the excellent Tekonsha T-One # 118786 yourself that you referenced will...
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• Can Extension Piece on Thule Roof Cargo Basket # TH859XT-8591XT Be Removed
• Yes, the extension on theThule Roof Cargo Basket # TH859XT-8591XT can be removed so that you can use the basket in its original length of 49 inches. With the extension added the basket measures 69 inches long. If you think you will use the extension piece at some point on the vehicle then this is definitely the way to go, since it gives you the option of going with either the longer or shorter cargo basket. I have attached a short video demonstration that you can also check out.
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• Is Splicing Required to Install Trailer Wiring Harness 118786 on 2018 Jeep JL Wrangler Unlimited
• No, installation of trailer wiring harness # 118786 does not require splicing into the vehicle tail light wiring. It has connectors that plug in line with the tail light connectors on the 2018 Jeep Wrangler Unlimited JL models. A connection to the battery is required and will be what powers the trailer lights as well as part of what helps protect the Jeep's electrical system.
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• Is the Replacement Lithium Converter PD4045LICSV Capable of Lead Acid Charging
• I reached out to Progressive Dynamics and found that the PD4045LICSV is only capable of charging lithium batteries. In order to be able to charge both lead acid and lithium, you will need the Replacement Converter Section for Progressive Dynamics 4000 Series RV Power Control Center - 45 Amp # PD4045CSV that you mentioned. This has a built in switch that will let you select lead acid or lithium. I have attached a review video for your reference.
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• Installing Redarc Tow-Pro Brake Controller on 2018 Jeep JL Wrangler Unlimited with Tow Package
• If your 2018 Jeep JL Wrangler Unlimited is equipped with the factory tow package, which should include a 7-Way connector at the rear bumper (you can check to be sure), the only additional components you will need outside of the Redarc Tow-Pro Elite Brake Controller # RED44FR itself is the Tekonsha Plug-In Wiring Adapter # 3073-P and Tow Pro Adapter # 331-TPH-017. The Tekonsha Plug-In Adapter will simply get plugged into the factory port beneath the dash of your Wrangler at one end and...
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• Can 3rd Brake Light on 2018 Jeep Wrangler be Used When Flat Towing
• The 3rd brake light on your 2018 Jeep JL Wrangler runs on a separate circuit so while it's possible to have it activated while flat towing the vehicle it's not something that any of the harnesses we have available are designed to work with, including the Roadmaster Diode Kit # RM-15267 that you referenced. If you really want to activate the 3rd brake light you will need to add a converter like # 118158 that will tap into the combined turn/brake circuits on the Roadmaster harness. On the...
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• Can Diodes for InvisiBrake be Installed on Wiring for Trailer Plug of Towed Vehicle
• Although it would be easier to install the diodes like part # RM-792 on the trailer connector, for the InvisiBrake # RM-8700 to work properly the diodes need to be installed at the rear of the bulbs. The reason for this is that the 4-Way trailer connector recieves the signal "after" the lights so they wouldn't be effective.
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• Which Side of Vehicle Does Hopkins Trailer Wiring Install Harness 42615 Install 2018 JL Wrangler
• The Hopkins trailer wiring harness part # 42615 that fits your 2018 Jeep Wrangler JL Unlimited installs by connecting on the passenger side of the vehicle. It installs inline with the taillight harness that's on the passenger side of the vehicle.
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• Additional Parts Needed to Install Roadmaster Invisibrake in 2018 Jeep Wrangler JL Unlimited
• With the Roadmaster InvisiBrake kit part # RM-8700 that you referenced the only thing else you need to install it in your 2018 Jeep Wrangler Unlimited JL is the stoplight switch part # RM-751000 and you'd be set. I attached a link to a video that shows this kit installed on a 2018 JL just like yours for you to check out as well.
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• How To Attach Brown Wire On Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit
• In regards to the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit part # RM-15267 which is a fit for a 2018 Jeep JL Wrangler Unlimited, you only need to splice the brown running light wire from the harness into one of the running light circuits on the vehicle. It does not matter if this is on the passenger side or driver side. There will then need to be a jumper wire run from the diode to the other side but an additional splice into the vehicle's running light circuit is not needed.
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• Parts Needed to Install Redarc Tow-Pro Elite Brake Controller in 2018 Jeep JLU Wrangler
• Since you mentioned your dealer installed wiring on your 2018 Jeep JLU Wrangler, I assume that does mean you have both the 4-Way # 118786 and 7-Way # ETBC7 hooked up. If so, you are ready to go with just a few parts needed to install the Redarc Tow-Pro Elite Trailer Brake Controller # RED44FR. You mentioned you did not have the plug, but it should be underneath the dash to the left of the steering column, taped to another harness near the emergency brake pedal as in the accompanying photo....
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• Wiring SnowBear Personal Snowplow on 2018 Jeep JL Wrangler
• Your existing SnowBear Personal Snowplow # SB324-081 is also confirmed to fit your new 2018 Jeep JL Wrangler and it will work great. The wiring to the vehicle battery will be the same as it was on your 2013 model Wrangler. I have attached the manufacturer's winch wiring diagram that you can also use for reference. The Curt Front Mount Hitch # C31086 that you had installed on your 2013 Jeep Wrangler will also mount to your 2018 JL Wrangler. For a new set of hardware you can use the Replacement...
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• Wiring Options for a Brake Controller on a 2018 Jeep JL Wrangler Unlimited Without Tow Package
• Since your 2018 Jeep JL Wrangler Unlimited doesn't have the factory tow package you will need to start off with 4-Way wiring like the recommended Tekonsha T-One # 118786. Once you have that installed there are a few options for you. You can either install the 7-Way RV Upgrade Kit # ETBC7L which only adds 12V power to the 7-Way and allows you to use the Curt Echo # C51180 brake controller with an Apple or Android smart device, or you can install the Universal Installation Kit # ETBC7 for...
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• Does Hot Lead on Wiring Harness for 2018 Jeep JL Wrangler Unlimited Have to be Run to Battery
• Thanks for the purchase and that is a good question, but you must run the hot lead directly to the battery when installing a 4-way, which in your case is the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56407. The reason is this is the only way to ensure your car's wiring is not otherwise affected, and you can run the hot lead from your battery in any manner you see fit. To do this you may need Wire Loom, 10' Long # 7509-10 and Loom Clamp -1/4" # A0250....
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• Does the Remote Need to be Left Plugged in While Towing with the Tekonsha Prodigy RF
• According to the owner's manual for the Tekonsha Prodigy RF Wireless Trailer Brake Controller part # TK94FR, "The Prodigy RF may operate with reduced performance if the Remote Hand Held Unit is removed or disconnected while the trailer is in use". Therefore, no the remote cannot be removed from the power source while towing with your 2018 Jeep JL Wrangler Unlimited.
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• Will LED Tail Lights on 2018 Jeep JL Wrangler Unlimited Affect Install of Roadmaster Diode Kit
• The Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 will work perfectly on your 2018 Jeep JL Wrangler Unlimited and the vehicle's LED tail lights won't affect the install or function of the kit in any way. You will just follow the attached install instructions like normal. I have attached the mentioned installation video as well.
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• 2018 Jeep Wrangler Unlimited Sahara JL Wiring for Flat Towing
• For your 2018 Jeep Wrangler Unlimited Sahara JL flat tow wiring, you will need the Roadmaster Stop Light Switch Kit # RM-751490 which will communicate with your motorhome's brake monitoring system that your Jeep brakes are being applied. This is to help you know if a problem is occurring like your Jeep brakes constantly being applied so you can solve an issue before damage occurs. I reached out to my tech contact at Roadmaster and you will not need the relay # RM-88400 because the factory...
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