Most Popular Roadmaster for 2021 Jeep Grand Cherokee

Good quality materials. Fast delivery Good price. Complicated install. 16 hours labor for me to install toad portion, including bulb kit. 8 hours to install indicator light/warning beeper in RV. Worth the one time effort for me to not have to set and remove floor mounted brake system each time I want to drive the toad. 2002 Jeep Grand Cherokee with electric drivers seat. Controller would not fit under drivers seat, installed in cargo area behind rear seat. Good instructions for install. Kit included everything I needed. Due to controller placement, the controller power leads were not long enough. Air line to air cylinder connection was difficult to get right. Was not as "sure" as air line to controller. Took 3 attempts to get it to not leak. Overall a good product, I expect it will last a long time and be very reliable.

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Permanent installation looks and works great. Simply connect to the tow vehicle and ready to go…every time! The only issue I see is the Jeeps brakes seem to lose vacuum as the brake pedal is “hard” to push after sitting overnight.

Upon the recommendation of one of your towing specialists, I ordered every component that I needed to flat tow my 2014 Jeep Grand Cherokee behind my 2013 Newmar Bay Star motorhome. I got the necessary Roadmaster tow bar and other accessories plus the SMI Stay-IN-Play braking system. I have towed over 5000 miles so far without any significant issues. Hook up is straight-forward and takes about 15 minutes to complete. I couldn't be happier with the towing experience!

Instructions in the kit and video on the website were very complete and made for a very easy installation. Suggestion to Roadmaster on the bracket....make some sort of positive location tab for the bracket because the location is only made secure by the tightening of the bolt. Also, the way the Jeep bracket that you bolt to is designed, there's no way to get a wrench or socket to hold the backside bolt head. Maybe come up with something to keep it from spinning.

Installing on 2020 Jeep Trailhawk : Pic #0557 : Roadmaster Base Plate Kit , Demco Supplemental Braking System , Diode Wiring Kit , Demco Battery Charge Wire Kit Pic # 0548 ,0551 , 0559 Had to adjust the bracket plate to line up with the upper bolt holes Pic #6028 finished install , mounted the operating unit to the top fuse box cover using automotive Velcro . Air cylinder , controller and LED light installed . Aside from the base plate bracket not lining up with the upper bolt holes I would give it 4 stars . My son in law is a master at solving mechanical issues .

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recommend having it professionally installed or at least a advanced DIYer.

So I never used mine. This is for those trying to decide if they need one. I tow an F250 with a 43’ tag axle, with an 8.9l Cummings. Yes I can feel the truck back there but I have never had the need for additional braking. Crossing the Snoqualmie pass on I-90 or driving through the cascades, I have no problems slowing with the engine brake. I have a big rig and tow a big truck so if this is your set up I’d give it a shot before committing to such an expensive item that I never use. I’m sure smaller rigs pulling larger trucks will benefit from a device like this.

Ordering was easy. Delivered very promptly. Actually cheaper then what the manufacturer sells it for. Live near manufacturer and having them install all my flat towing components this month. Great service Etrailer!!

recommend having it professionally installed or at least a advanced DIYer.

Works just like it should on my 2022 Jeep Cherokee.

Works great on my 2021 Jeep Cherokee. Makes the tail lights work as they should.

recommend having it professionally installed or at least a advanced DIYer.

There was a challenge presented when installing the Roadmaster Stop Light Switch (Kit #751452) on my 2015 Jeep Wrangler Sport Unlimited. The kit's Black C Bracket was not able to swing around fully to allow the kit's gray stop switch to be in line with the brake pedal. This was due to blockage caused by existing jeep's stop switch gray mounting bracket. As a result, I had to cut a notch using a Dremel and a grinding bit. The area where I had the interference from the jeep's bracket and the notch to allow proper installation is indicated in the attached photo. It is imperative that the kit's stop light switch when mounted correctly is fully depressed. If not, 12 volts will be sent to the Evenbrake's transmitter which will result in an alarm and failure to use the Evenbrake system. Also in reference to the Roadmaster installation instructions, there is no removable lower plastic cover. Installation requires twisting ones body under the dashboard with limited use of my left arm (I am right handed) to use tools. I ordered the stop switch from etrailer.com. I am using a Roadmaster Evenbrake system. I do want to state a clarification concerning the battery based on what I read in etrailer's and other forums. You do not have to disconnect the jeep battery on the 2015 Wrangler Sport Unlimited Model. Jeep made a change in the second edition of the 2014 operators manual which is reflected in the 2015 manual. The earlier 2014 edition did state the disconnecting of the battery before towing. I had informed the Roadmaster tech department of this change. The 2015 Jeep Wrangler Sport Unlimited steering column does not lock. You do not have to leave the key in ignition. You can remove it when ready to tow. My 2015 jeep has the power convenience group. The vehicle has two 12 volt convenience outlets. One is only powered on when the ignition switch is on. The other outlet is connected directly to the battery via a fuse. It is on all the time. This is the outlet I use for the Evenbrake. Now, Jeep does state not to plug in devices that use more than 13 amps or 160 watts. Roadmaster as per their installation manual indicates that the maximum draw of the Evenbrake is 10.8 amps. I reviewed all the above to the Roadmaster tech department and they said I should not have a problem using the Jeep's always on 12 volt outlet. We recently went on a camping trip on Columbus Day weekend to a campground 120 miles from the house and no power problems were encountered with the Evenbrake system. One other clarification is that the Jeep's brake lights are tied into the power convenience/electronics system. The brake lights will operate for a short period of time after the ignition is turned off and/or you open the jeep's door. Use of the brake lights will time out. This is the primary reason why I chose the stop light switch bracket kit. The Roadmaster Evenbrake transmitter and the hot leg to the kit's stop light switch are fed from a dedicated 10 amp fuse protected line from the battery. This way, I avoided drilling a hole into the weather resistant under the hood fuse box plus negating the need to make rube goldberg connections to existing fuses.

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Thanks to a review I was aware I might have to grind out part of bracket to get it to fit. I did have to. Roadmaster said it wasn't necessary . I think they have to update the bracket for the newer models. Etrailer was more helpful than Roadmaster.

recommend having it professionally installed or at least a advanced DIYer.

This product worked great for me. I didn't want the brake lights in my plug-in hybrid activating my trailer brakes when all I wanted was regenerative braking. Now I can get regen by taking my foot off the gas pedal and trailer braking by putting my foot on the brake pedal.

Delivered early and everything packaged as stated

Works great fairly easy install. It has been in use for the last 8 month's with no issues. Here may be some helpful hints that I found when installing. Use 10-12" long extension for 13mm nut (left side of opening panel that was removed). Install bracket. Adjust plunger & backing nut by feel. Remove bracket. Install switch with ring washer & nut. Crimp red & green wires on switch wires. Reinstall bracket under dash.

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I installed it myself to tow my 2018 Jeep Wrangler as I had experience as an auto mechanic myself years ago. I would not reccomend self install for those without such eperience even though the online videos were helpful. The only issue I had with performance was sticking lock mechasims which was resolved by calling the manufacturer, who instructed cleaning the housings which got dirty.

What is there to say except the Roadmaster stop light switch kit simply works and works flawlessly.