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Expert Answers about SMI

  • 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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  • 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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  • 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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  • 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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  • Dimensions of the SMI Delta Force Braking System for a 2013 Lincoln MKT
  • The SMI Delta Force braking system # SM99242 does fit your 2013 Lincoln MKT. It is 10 inches across, 5-1/2 inches tall. For the depth you can measure from the front of the driver's seat to the brake pedal and subtract 6-1/2 inches. This measurement is different on every vehicle.
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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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • Will the SMI CoachLink 900 # SM99945 Work With the SMI Air Force One # SM99243
  • The SMI CoachLink 900 Wireless Transmitter and Receiver Braking Indicator Set, part # SM99945, will work well on your 2012 Honda CR-V with the SMI Air Force One Supplemental Braking System for Motor Homes with Air Brakes, part # SM99243, as long as there is a signal running through your stop light switch wire when you are towing your Honda. Since the CoachLink 900 works off of the signal that runs through your stop light switch, you will want to test to make sure there is signal when...
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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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  • Permanent Install Supplemental Braking System Recommendation for Flat Towing 2005 Honda Element
  • The SMI Duo part # SM99251 that you mentioned is going to be your best option. It works just as well as the Inivsi-Brake yet installs much easier. If the permanent install route is what you are wanting the DUO is hands-down the best option. Our installers here love it. If you are paying for an install somewhere it will also be much less expensive to go this route. The Invisi-Brake is also not listed as a fit for your Element either at this time.
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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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  • Installation of Brake Light Relay on 2017 Jeep Cherokee with SMI Stay-In-Play DUO Braking System
  • On the brake light relay, # RM-88400, the monitoring wire from the SMI Duo # SM99251 and the green wire from the relay attach to the brake switch wire on your 2017 Jeep Cherokee (unless it has push button start which I will cover next). Basically what you are doing is installing the relay in line with the brake switch wire. So you have the brake light switch on your 2017 Jeep Cherokee. You have identified the cold side wire. You cut that wire several inches down from the switch. Then...
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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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  • 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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  • Best Supplemental Braking System for Flat Towing 2015 Ford F-150
  • The flat-towing supplemental braking system I most often recommend is the Blue Ox Patriot II # BRK2016. This proportional braking device will slow your F-150 at the same rate that the RV slows down, meaning less of the tug-of-war feeling from the toad. It also offers the exceptional convenience of wireless installation and it is fully portable to make it easy to move between vehicles. I have linked an installation video showing the Patriot in use in a Ford vehicle along with the written...
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  • Are Trailer Break Away Switch Pins a One-Time Use Item
  • The usual way to test a trailer break away switch is to pull the pin, and make sure the trailer or vehicle brakes engage. To turn the system off, you'd simply reinsert the pin. In that sense, the pin can be used multiple times. If the pin is pulled because the trailer or towed vehicle has come loose from the tow vehicle, and it isn't damaged in the process from dragging behind the vehicle or damaged in some other way, the pin can be used over and over again. I've linked you to some...
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  • Supplemental Brake System Alternatives for Diesel Pusher RV Towing 2012 Jeep Wrangler Unlimited
  • An air brake equipped diesel pusher wouldn't necessarily need to use the SMI # SM99243 Air Force One, but it would be the best choice as it would provide the most reactive and efficient braking. The # SM99251 Stay IN Play DUO could also be used, it activates when RV brake lights are illuminated and the systems inertia sensor detects deceleration. This system would actuate quickly, but not as fast as the Air Force One. A portable system like the Blue Ox Patriot II # BRK2016 could also be...
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  • Best Mounting Location for SMI Air Force Braking Controller SM99243 in 2015 Ford F-150 Platinum
  • My technical contact at SMI was quite familiar with your installation question that concerns your non-removable front grille. In trucks like your 2015 F-150 Platinum the best location to install the SMI Air Force controller unit is right on top of the plastic cover over the engine intake. This cover can be drilled to allow mounting of the controller and then be re-installed.
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  • Recommended Supplemental Braking System and Other Parts Needed to Flat Tow 2018 Jeep Cherokee
  • For a supplemental braking system to use with your 2018 Jeep Cherokee Trailhawk, I highly recommend the SMI Stay-IN-Play DUO # SM99251. This is an excellent, proportional system that will activate the brakes in your Jeep at the same time and with the same intensity that you apply to them in your RV. This is a one-time setup, as there is no need to remove the system when you're not towing the vehicle and you won't have to activate it again when it's time for another trip. It will automatically...
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  • Replacement Breakaway Switch for SMI Stay-IN-Play Towed Car Braking System SM99251
  • If you needed only the Switch Pin for your SMI Stay-IN-Play Duo supplemental braking system # SM99251 you could use part # SM99905. But for a complete replacement breakaway switch you can use any of the kits we offer, shown on the linked page. Since these all function the same way they are not brand- or system-specific. Examples of suitable items are # HM20014 and # FA80-00-2040. These and all others are shown on the linked page.
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  • Supplemental Braking System for Flat Towing a 1998 Volkswagen Jetta Behind an RV
  • Besides the SMI Air Force One # SM99243 you can use the Blue Ox Patriot, # BRK2016, with your 1998 Volkswagen Jetta if you think the Air Force One will not fit. I have linked the installation details for the Patriot system for you.
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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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