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Expert Answers about SMI

  • 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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  • 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 BrakeSafe, # BRK4000-3050, with your 1998 Volkswagen Jetta if you think the Air Force One will not fit. I have linked the installation details for the BrakeSafe system for you.
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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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  • 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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  • 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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  • Supplemental Braking System Recommendation Uses Light Indicator for When Brakes are On and Error
  • The Blue Ox Patriot part # BRK2012 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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  • 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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  • 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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  • How to Install Stay-IN-Play DUO in New Jeep
  • I spoke with my contact at SMI and he advised not to install the Stay-IN-Play DUO # SM99251, which you referenced, under the seat but to install it on the toe kick per the installation instructions. He said it will not work if placed under the seat because the unit needs to be mounted level as it is working off inertia. The operating unit measures 8" long x 6-1/4" x 2-1/2" tall. (See photo.) He said the units have been fitted in all new Jeep models and that they will fit, you will...
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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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  • 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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  • 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 # BRK2012. 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • 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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  • Wiring Instructions for SMI Stay-IN-Play DUO on 2008 Jeep Liberty
  • The SMI Stay-IN-Play DUO Supplemental Braking System # SM99251 referenced in your question does not require separate brake and turn signals to operate properly. However, if you want to use the separate turn signals on your 2008 Jeep Liberty, then I recommend installing the Roadmaster 6-Diode Universal Wiring Kit # 154-792-118158 to connect the Jeep's lighting system to your RV's. To let the Jeep's system operate the brake lights, the red wire coming from the converter on this wiring kit...
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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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  • Will the SMI Stay-IN-Play DUO Supplemental Braking System # SM99251 fit a 1991 Toyota Truck
  • I spoke to my contact at SMI and he informed me that the SMI Stay-IN-Play DUO Supplemental Braking System # SM99251 that you referenced can basically fit any vehicle so it would work well on your 1991 Toyota Truck. I attached an install video for you to check out as well.
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  • Can 2013 Camry LE 6-Speed Auto Transmission Be Flat Towed
  • According to Remco Towing, one of our key resources for flat towing information, the Toyota Camry from model years 2000 - 2012 can be flat towed but a lube pump kit LP-BK01-010 is recommended for the U241E transmission. The 2013 model year is not listed so the best thing to do is check your owner's manual under the heading "recreational towing" or "flat towing" to see what the folks at Toyota have to say. Naturally it is best to follow any guidelines from the vehicle manufacturer about...
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  • Which Is Easiest to Install SMI DUO, Air Force One, or Roadmaster Invisibrake
  • Your best choice is going to be the SMI DUO part # SM99251. All of the systems you referenced will work great once installed, but the DUO is the only one that installs easily. The Invisibrake and Air Force One require a great deal of time for their very involved install. The DUO is very similar to the Invisibrake except it's not as noisy, doesn't cause issues with Trailermate lighting harnesses however you will still want the diode kit # RM-690, the compressor fits under the hood instead...
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  • Air Force One Brake 99243 Replacement Cap for Vehicle Side Recommendation
  • Sounds like you are looking for the Vinyl Cap for SMI Air Force One Supplemental Braking System # SM99608 as this is the correct cap for the air valve connection point on the vehicle side of a part # SM99243.
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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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  • Package Contents Of Replacement Installation Kit for SMI Air Force One Supplemental Braking System
  • The Replacement Motor Home Installation Kit for SMI Air Force One Supplemental Braking System, part # SM99627 includes everything needed on the coach side for the Air Force One. The package includes the tank valve, brass tees, 1/4 inch air line, and the L bracket needed for mounting at the rear of the coach.
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