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SMI





SMI Reviews and Installation Videos


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Expert Answers about SMI

  • Will the SMI Stay-IN-Play DUO # SM99251 Fit a 2018 Jeep JL Wrangler
  • The SMI Stay-IN-Play DUO # SM99251 is actually a universal supplemental braking system so it will be compatible with your 2018 Jeep JL Wrangler. If you check out the attached installation video of this system on a 2017 Jeep Wrangler you can see that the only time this system really connects to your vehicle is for the ground (to a bare metal surface) and your battery for power. At this time (February of 2018) we have not been able to test fit very many products on a 2018 Jeep JL Wrangler...
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  • Troubleshooting 2018 Jeep Grand Cherokee Automatically Braking When Backing Up with Trailer
  • It sounds like the trailer might be triggering the automatic braking feature on your 2018 Jeep Grand Cherokee. The vehicles brakes are automatically applied and released when going in reverse and the sensors detect a possible collision with an obstacle, and the sensors are mistaking the trailer for a potential obstacle. I took a look at the online owner's manual for your vehicle and it looks like you can override the automatic braking function by pressing the gas pedal, turning the...
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  • Flat Towing Supplemental Braking System Recommendation for 2002 Jeep Wrangler
  • I think your best option would be the SMI DUO part # SM99251. This is a permanent install kit but it's basically the best all around option that would address the issues you have as well. Unlike other similar kits though this one is much easier to install. Based on how it install it won't interfere with the seat either. It also draws power directly from the battery so you'll have the outlet issue avoided as well. I attached an install video for this for you to check out on a similar...
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  • Comparison Of SMI Stay-In-Play Duo And Roadmaster InvisiBrake Supplemental Brake Systems
  • Both the SMI Stay-IN-Play DUO, part # SM99251 and the Roadmaster InvisiBrake Supplemental Braking System, part # RM-8700 are nice braking systems and will function similarly but I recommend the Duo system. Both systems are a one-time installation. The # SM99251 is easier to install because it has a shorter arm that is used in the towed-vehicle where the longer cable used with the # RM-8700 can be tough to find places to mount. I have attached a couple photos that show how the brake pedal...
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  • Availability of Replacement Parts for SMI Air Force One Supplemental Braking System SM99243
  • We do offer replacement parts for the SMI Air Force One Supplemental Braking System # SM99243. These items include a replacement Installation Kit for the motorhome, part # SM99627, a Replacement Towed Vehicle Installation Kit # SM99226 as well as other smaller individual parts such as a replacement Air Jumper # SM99666. You can see all replacement parts by clicking on the linked page for the Air Force One and scrolling down to the heading Replacement Parts.
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  • Second Vehicle Kit Recommendation for the SMI Air Force One Braking System
  • The correct second vehicle kit you would need to use with the SMI Air Force 1 # SM99243 is the part # SM99209 that you referenced. It does come with all of the needed hardware and air lines to install. If you do also need the air jumper you would need the part # SM99666. This is not included with the # SM99209.
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  • Components Needed to Flat-Tow 2013 Fiat 500 using SMI Stay-IN-Play DUO
  • First thing you will need to flat tow your 2013 Fiat 500 Pop is a base plate kit. For that you would want the Roadmaster EZ2 Base Plate kit part # 522013-1A. 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 2, # RM-520. For safety cables you can use # RM-643. The coiled design helps keep the cables off of the ground. For lighting you...
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  • Recommended Roadmaster Base Plate For 2013 Fiat 500 Abarth And Other Flat Towing Recommendations
  • For your 2013 Fiat 500 Abarth, the Roadmaster base plate kit you are seeking is the Roadmaster EZ2 Base Plate Kit - Removable Arms, # 522013-1A. This is a confirmed fit for your vehicle. I recommend using Loctite Threadlocker 262 - High Strength - Up to 3/4" Nuts/Bolts - 0.20-Fl-Oz Tube, # LT37420, when installing. If you need recommendations for the rest of your towing system, I've listed compatible parts for you. For a tow bar, I recommend the Roadmaster Falcon All Terrain, Non-Binding...
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  • Recommended Supplemental Braking System for 2013 Chevy Sonic
  • The supplemental braking system on your 2013 Chevy Sonic I highly recommend is the SMI Stay-IN-Play # SM99251 for this. This is a proportional braking system which is a one-time install which you can leave in so you'll never have to deactivate or re-activate it. The Stay-IN-Play uses an inertia sensor to detect when you decelerate which in turn will activate your Chevy's brakes. This system is made in the USA and comes with a 5-year warranty. I've added links to a number of video reviews...
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  • Relocating Inertial Sensor of SMI Stay-IN-Play DUO Supplemental Braking System
  • The Stay-In-Play DUO works best when the vacuum booster is depleted, so that the pull on the brake pedal is consistent. The first few times you press the brake pedal, they'll still be some residual pressure in the car's braking system. It's recommended that you press the pedal several times before moving off, so that the system applies the brakes with consistent pressure. The switch you mentioned is on the box that serves as the inertia sensor, which needs to be mounted so its level...
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  • Installing SMI Air Force One Supplemental Braking System on 40 Foot Dutchcraft on Spartan Chassis
  • When installing the SMI Air Force One Supplemental Braking System For Motor Homes with Air Brakes # SM99243 you will need to find the supply air line and the metered air line. On the Dutchcraft motor home on the Spartan Chassis the larger 5/8 inch line is the supply air line, and the smaller 3/8 inch line below the supply air line is the metered air line. I have attached a photo showing witch line is the supply and which line is the metered.
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  • Installation Video for SMI Air Force One Braking System for MHs with Air Brakes SM99243
  • My contact at SMI Manufacturing advised that their Air Force One Supplemental Braking System for Motor Homes with Air Brakes, part # SM99243, will soon again have an enclosed installation video disc. Current production does NOT have the disc enclosed as SMI is in the process of preparing an updated installation video. We do have videos that we produced here at etrailer that show the installation process. I have linked those for you. One shows installation in a pickup, the other in a SUV.
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  • Installation Instructions for SMI Stay-IN-Play DUO Supplemental Braking System SM99251
  • All of the flat towing braking systems that work with your 2011 Suzuki SX4 are shown on the linked page. For the SMI Stay-IN-Play DUO Supplemental Braking System # SM99251 the installation instructions are linked for you. I also linked an installation video (showing a different car) that will let you see the whole process.
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  • SMI Air Force One Brake System Air Line Connection in Coach Recommendation
  • In the install instructions for the SMI Air Force One system part # SM99243 that you referenced the correct line to use for the Spartan Chassis is pointed out. I attached that picture. The line to use is the coach's supply air hose. This line goes from the service relay valve to the braking air tank. It is 5/8 inch in outer diameter. This line is normally green and should not be confused with the treadle valve hose which is 3/8 inch in diameter.
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  • Installation of SMI Air Force One Supplemental Braking System and Ease of Disconnect
  • The SMI Air Force One Supplemental Braking System # SM99243 referenced in your question is confirmed to fit your Suzuki Grand Vitara and is a great choice if your RV has air brakes. This is a true, proportional system, which means it will actually use air pressure from the RV's brakes to apply the brakes in your towed vehicle at the same time and with the same intensity. The initial installation can definitely be a bit more involved than some other systems, but a great thing about this...
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  • Parts Needed to Flat Tow 2016 Ford Fiesta Titanium Behind a Motorhome
  • We can help you with the process of researching your options in flat towing equipment for when you're ready to tow your 2016 Ford Fiesta Titanium behind a yet-to-be-acquired motorhome. We have a comprehensive article on flat towing (plus a few others concerning specific towing items) that you can review for background and to show you the options. There are indeed many options when it comes to braking systems and wiring/lighting kits and these vary considerably in price and in how invasive...
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  • Recommended Equipment to Flat Tow 2017 Cadillac Escalade 4WD with RV That Has Air Brakes
  • Flat towing a vehicle behind an RV requires a few items, including base plates, a tow bar and a braking system among others. These and all other items for safe and legal flat towing are outlined in the linked article. To flat tow a 4WD Escalade it must have a 2-speed transfer case that has both Neutral and 4WD Low settings. Blue Ox base plate kit # BX1716 is a good choice for your 4WD. Our in-house installers like the Blue Ox gear. For a tow bar I suggest their Alpha # BX7365 which includes...
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  • Is the Stop Light Switch Kit Part # RM-751480 Required for a 2018 Chevrolet Spark
  • On certain vehicles, the stop light circuit does not carry a 12 volt signal while the vehicle is off. The 12 volt power on the vehicle's stop light circuit will be needed to illuminate a light in the vehicle's windshield that will be used to tell if the brakes are being activated while sitting in your RV. The Roadmaster Stop Light Switch Kit part # RM-751480 will indeed be required while using the SMI Stay-IN-Play DUO Supplemental Braking System part # SM99251 on your 2018 Chevrolet...
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  • Second Vehicle Kit Recommendation for a Air Force One Supplemental Braking System
  • Yes we still do offer the second vehicle kit for the SMI Air Force One part # SM99243 that you referenced. You would want the part # SM99209.
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  • Availability of Replacement Kits 6237 and 6212 for the SMI Air Force One
  • Yes, we do have those kits. The kit 6212 that you referenced is part # SM99666 on our site. The kit 6237 that you referenced is a combination of parts # SM99226 and # SM99625 on our site.
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  • Parts Needed to Flat Tow a 2016 Hyundai Veloster Turbo
  • According to my research the 2016 Hyundai Veloster can be flat towed as long as it has a manual transmission. The Turbo model, like yours, can be flat towed. The automatic transmission models must be towed on a tow dolly or trailer. You should check your owner's manual to make sure this is the case. To flat tow the Hyundai you'll need the tow bar, a base plate kit which is separate, safety cables, a braking system, lighting, and likely a high-low adapter. The Roadmaster Falcon...
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  • Does SMI Duo Supplemental Braking System Drain Vehicle Battery
  • The SMI DUO part # SM99251 that you referenced does use the vehicle battery so it would drain the battery after prolonged use. What a lot of people do to combat this is run a 10 gauge wire from the 12-volt accessory circuit of the 7-way on the tow vehicle to the battery on the towed vehicle to keep it topped off while towing.
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  • Supplemental Braking System Recommendation Uses Light Indicator for When Brakes are On and Error
  • The Blue Ox Patriot part # BRK2016 would be more what you are looking for. The remote of this system that installs in the tow vehicle will show a display light when the brakes are applied and then has an additional light that illuminates when there would be a problem. The Patriot is our most recommended system to as it installs very easily and works very well. The SMI makes noise everytime the brakes are being applied.
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  • Is a Brake Light Relay Required for a 2014 Honda CR-V that is Using an SMI Tow Bar Brake System
  • To determine if a vehicle needs a brake light relay like the part # RM-88400 you need to answer the following questions. Are you using a supplemental braking system that depresses the brake pedal in your towed car? No - You do not need a brake light relay. Yes - You may need a brake light relay. Continue on to the next question. Do the brake lights on your towed car illuminate while the engine is off? No - You do not need a brake light relay. Yes - You may need a brake light...
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  • Replacement Vinyl Caps for the SMI Air Force One # SM99243
  • Yes, we do have replacement vinyl caps for your SMI Air Force One Supplemental Braking System for Motor Homes with Air Brakes # SM99243. For the RV side you will want the Cap part # SM99609 and for the vehicle side you will want the Cap part # SM99608.
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  • Picture of the Breakaway System of the SMI Delta Force Supplemental Braking System # SM99242
  • I attached a picture of the breakaway system that the SMI Delta Force Portable Supplemental Braking System # SM99242 that you referenced uses.
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  • Is SMI Air Force One Supplemental Braking System # SM99243 Compatible with Adjustable Brake Pedals
  • The SMI Air Force One Supplemental Braking System for Motor Homes with Air Brakes # SM99243 is compatible with your 2013 Cadillac SRX with adjustable brake pedal. No additional parts are needed for installation but the system needs to be set up with the pedals as far back (closest to the seat) as possible. Once installed this way the pedals must be moved back each time the vehicle is towed. A supplementary braking system like the Air Force One is one of the components essential to safe...
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  • Does SMI DUO Supplemental Braking System Draw Power from Vehicle Battery
  • The SMI DUO part # SM99251 will draw power from your 2016 Jeep Wrangler battery to operate so what you can do is run a charge wire from the positive post of your battery to the 12 volt accessory pin of your tow motorhome's trailer connector like you mentioned. This will keep the battery maintained while you are flat towing. For 10 gauge wire we have the part # 10-1-1 which is sold by the foot. The 1:00 pin of the 7-way will be the 12 volt circuit. I attached an install video for this...
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  • How to Tow a 2012 Ford Fusion be Behind a Motor Home
  • We have recently learned that the 2012 Ford Fusion cannot be flat towed with all 4 wheels on the ground. Front wheel drive models can be towed on a tow dolly, such as # RM-2000-1. But all wheel drive models cannot. They would have to be placed on a car trailer. Please consult the vehicle owners manual for more information.
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  • Supplemental Braking System Recommendation for 2003 Mazda Miata
  • It doesn't look like Roadmaster ever test fit the Invisibrake in a 2003 Mazda Miata so while I can't say for sure I do have a great option. The SMI DUO part # SM99251 is a confirmed fit for your vehicle and among the permanent install braking kits we offer for flat towing this is our installers favorite kit. It installs the easiest and works the best. I would highly recommend you go with this kit.
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