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Roadmaster Stop Light Switch Kit - Chevrolet Sonic

Roadmaster Stop Light Switch Kit - Chevrolet Sonic

Item # RM-751457
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Tow Bar Braking Systems
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Roadmaster Stop Light Switch - RM-751457
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Avoid damage to your vehicle by ensuring that your supplemental braking system is properly positioned and working effectively. Kit activates your RV monitoring system to alert you when the brakes of your towed car are being applied. Lowest Prices for the best tow bar braking systems from Roadmaster. Roadmaster Stop Light Switch Kit - Chevrolet Sonic part number RM-751457 can be ordered online at or call 1-833-496-1390 for expert service.
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Roadmaster Tow Bar Braking Systems - RM-751457

  • Stop Light Switch
  • Roadmaster

Avoid damage to your vehicle by ensuring that your supplemental braking system is properly positioned and working effectively. Kit activates your RV monitoring system to alert you when the brakes of your towed car are being applied.


  • Activates motorhome brake-monitoring system whenever brake pedal in towed car is applied
    • Ensures that the supplemental braking system is functioning properly
  • Works great for any application that does not have a tow position in the ignition
  • Wires directly into towed car's fuse box for constant current
  • Made in the USA


  • 12 Volts
  • Application: custom fit for your vehicle

This kit allows your RV's monitoring system to alert you whenever the brake pedal of your towed car is being applied. Other systems operate according to whether the air cylinder is extended and provide no indication of what is happening with the pedal itself. If your supplemental braking system is improperly installed, it may be continuously pressing on the pedal, impeding it from fully retracting and possibly causing damage to your vehicle's tires and braking system. With Roadmaster's Stop Light Switch Kit, you will always know when the brake is being depressed, and you will avoid costly damage.

751457 Road Master Stop Light Switch Kit

Installation Details RM-751457 Installation instructions

This Product Fits The Following Vehicles

Customer Reviews

Roadmaster Stop Light Switch Kit - Chevrolet Sonic - RM-751457

Average Customer Rating:  4.8 out of 5 stars   (4 Customer Reviews)

Avoid damage to your vehicle by ensuring that your supplemental braking system is properly positioned and working effectively. Kit activates your RV monitoring system to alert you when the brakes of your towed car are being applied.


Work as advertised - no issues


Product works very well for towing our car.




See what our Experts say about this Roadmaster Tow Bar Braking Systems

  • Does Roadmaster Stoplight Switch RM-751457 Fit 2015 Chevy Sonic
    The Roadmaster Stoplight Switch part # RM-751457 is a fit for your 2015 Chevy Sonic and would work well for giving you a way to get a stoplight circuit on your vehicle for supplemental braking.
    view full answer...
  • Is Stop Light Switch Kit Needed to Install Stay-IN-Play DUO in 2013 Chevy Sonic
    You do not need the Roadmaster Stop Light Switch, part # RM-751457, when installing the Stay-IN-Play DUO, part # SM99251, in your 2013 Chevrolet Sonic. The stop light switch is needed when installing the Roadmaster InivisiBrake, part # RM-8700, but not the DUO.
    view full answer...
  • Recommendation for Supplemental Braking System on 2013 Chevrolet Sonic
    The continuous power assist braking system or active power assist system works by monitoring your day-to-day braking habits to formulate a normal braking pattern. The system will detect a change in your rate of braking force and your position on the brake pedal and interpret this as an emergency situation. If the system feels that there is not enough pressure being applied to the brakes, it will initiate an override mode and activate the vehicles full braking force. Typically, a supplemental...
    view full answer...
  • Parts Needed for Roadmaster Invisibrake and Tail Light Wiring Kit for a 2016 Chevrolet Sonic
    You need to have a diode kit installed regardless of which braking system you are using, this is what lets you connect your RV's tail, brake, and turn signal lights to your towed car's lighting system so that your brake lights and turn signals illuminate. This is a requirement for flat towing. You can use the Roadmaster Tail Light Wiring Kit for Towed Vehicles # RM-152-LED to accomplish this. You will also want the Roadmaster FuseMaster Fuse Bypass # RM76511 which replaces your Chevrolet...
    view full answer...
  • Parts Needed to Flat Tow a 2013 Chevy Sonic with a Sterling Tow Bar
    The Sterling tow bar, # RM-576, is compatible with all Roadmaster base plates. For a 2013 Chevy Sonic you can use EZ base plates # 523173-4. In addition to the base plates and tow bar, you have said that you have everything you need. But just to be sure I will cover the other items needed to flat tow a vehicle. If you do not already have safety cables (the Sterling tow bar should have them) you can use # RM-645. You will also need a light solution. The Sterling tow bar is supposed to...
    view full answer...
  • Recommended Flat Towing Setup for a 2014 Chevy Sonic
    The base plate kits we currently offer will fit all models of the 2014 Chevy Sonic. I recommend the Roadmaster EZ4 base plate kit # 523173-4 because the brackets are nearly invisible once installed. It's a simple installation as no welding is required. Note that trimming of your spoiler, air dam, grill or fascia may be required on some models. Since you are flat towing your 2014 Chevy Sonic, you will need the following items: a tow bar, safety cables, wiring and a supplemental braking...
    view full answer...
  • Parts Needed to Flat Tow a 2013 Chevrolet Sonic Sedan Automatic Behind a Motor Home
    Looking at the owners manual online for the 2013 Chevy Sonic, it looks like as long as you do not have an RS model with automatic transmission it can be flat towed or towed on a dolly. If it is an RS automatic you will need to have it on a trailer with all 4 wheels off the ground. If it is not an RS automatic then you can flat tow it using the following 5 components: base plates, tow bar, safety cables, lighting, and supplemental braking. For base plates use # 523173-4. The base plates...
    view full answer...
  • Can a 2015 Chevy Sonic RS Manual Transmission Be Flat Towed?
    The 2015 Chevy Sonic RS Turbo with Manual transmission is towable. You will want to follow the instructions in the owners manual for procedures. They recommend running the vehicle for 5 minutes prior to towing so you will have proper lubrication of the transmission components. It is also recommended to not tow over 65 mph. I recommend starting with the Roadmaster EZ5 Base Plate Kit - Removable Arms # RM-523173-5 for your custom fit base plates and then using the Roadmaster Falcon 2...
    view full answer...
  • Recommended Tow Bar and Flat Towing Equipment for 2014 Chevy Sonic
    According to my research, the Sonic is capable of being flat towed, but I'd urge you to confirm that for yourself by consulting your owner's manual or Chevy. You'll need base plates like the Roadmaster # 523173-4 and a tow bar like the Roadmaster Falcon 2, part # RM-520. The Falcon 2 is very easy to use, featuring auto lock arms that allow you to hitch the tow bar up to the base plates even when the vehicle and the motorhome aren't perfectly aligned. You'll also need safety cables, part...
    view full answer...
  • Recommended Base Plates For 2018 Chevrolet Sonic Hatchback
    The Roadmaster XL Base Plate Kit # 3136-1 is not a confirmed fit for the 2018 Chevrolet Sonic . However, the Roadmaster EZ5 Base Plate Kit # RM-523194-5 will work in a similar fashion. If you plan to flat tow this vehicle, for brake and tail lights, I recommend the Roadmaster Bulb and Socket Kit, Item # RM-155. This kit is a completely independent system from your vehicle's lighting system that mounts inside your tail light lens housing. Fuses must be pulled while towing the Sonic....
    view full answer...
  • Complete Flat Towing Setup For A 2020 Chevrolet Sonic
    Sure thing! For your 2020 Chevrolet Sonic Hatchback, you're going to need: -A base plate kit, Blue Ox Base Plate Kit # BX1703, -A tow bar, the Curt Rambler Steel Tow Bar for Curt and Blue Ox Base Plates # C26FR, -A wiring kit, Roadmaster Tail Light Wiring Kit w/ 7-Way to 6-Wire Connector # RM-152-LED-7 with the fuse bypass # RM76512, # RM76511 & # RM76511. Those 3 fuse bypasses are only for models with keyless entry, if your Sonic does not have keyless entry then you only need one...
    view full answer...
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  • Parts Needed to Flat Tow 2018 Chevy Sonic
    I took a look at the owner's manual of a 2018 Chevy Sonic and it did not specify any model that could not be flat towed although to make absolutely sure I do recommend contacting your local Chevy dealer who should be able to tell you that information definitively. There are a number of parts you're going to need in order to do this, starting with compatible base plates. I recommend the Roadmaster EZ5 Base Plate Kit # RM-523192-4 if you have a sedan with a 1.8L engine or the Roadmaster...
    view full answer...
  • Recommended Flat Towing System for 2017 Chevy Sonic Behind MB Sprinter Motorhome
    For your 2017 Chevy Sonic, I recommend starting with the Roadmaster Direct-Connect Base Plate Kit # RM-523192-5 for a sedan or # RM-523194-5 for a hatchback. Then I recommend the Roadmaster Falcon 2 Tow Bar - Motorhome Mount - 2" Hitch - 6,000 lbs # RM-520 along with the safety cables # RM-643. Then for the vehicle wiring I recommend the Roadmaster Tail Light Wiring Kit for Towed Vehicles - LED Bulb and Socket - Red # RM-152-LED which I recommend connecting to your motorhome with the...
    view full answer...
  • Recommendation For Flat-Towing A 2018 Chevrolet Sonic
    Yes. It is similar and particular parts for 2018 are available. To flat tow a 2018 Chevrolet Sonic, you will need base plates, a tow bar, safety cables, wiring, a braking system, and maybe a high-low hitch adapter. For base plates, I recommend the Roadmaster EZ4 Base Plate Kit with Removable Arms, Item # RM-523192-4 for the sedan with 1.8L engine or Item # RM-523194-4 for the hatchback with 1.8L engine. If you get a sedan with a 1.4L turbo engine then I recommend the Blue Ox Base Plate...
    view full answer...

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Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Chris R
Video Edited:
Chris R
Employee Shelly K
Updated by:
Shelly K
Employee Mike S
Updated by:
Mike S
Employee Isabelle B
Updated by:
Isabelle B
Employee Jonathan Y
Video by:
Jonathan Y
Employee Robert C
Test Fit:
Robert C

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