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Expert Answers about Chevrolet Vehicle Lights


  • How to Determine Width of Trailer for Lighting Purposes
  • To determine the width of your trailer for lighting purposes, the width is measured at the widest point of the trailer. It is the responsibility of the trailer owner to determine the width of their trailer, and to ensure that it lit according to state and federal regulations. Your state police, highway patrol or department of transportation is a great resource for finding the regulations that apply in your area. All clearance and marker lights are tied into the running light circuit...
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  • Is a Converter Needed to Add an LED Light to the Back of a Bike Rack
  • Trailer lights such as # STL59RB are designed to work with what is called a combined system where the brake lights and turn signals are on the same circuit. This is what the 4-Way flat connector has on your vehicle. If you used a converter such as # 118158 it would separate out the brake lights from the turn signals. If you are using a light that is designed for separate brake and turn signal functions then you would need the converter. But if you are using a trailer light such as # STL59RB...
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  • Recommended Tow Bar Wiring For 2014 Jeep Wrangler Unlimited
  • If the wiring harness for your vehicle is wired properly, the signal to the brake lights is received through the wiring harness and not the brake controller, to make the towed vehicle lights operate. We do not have a bulb and socket kit available for your 2014 Wrangler Unlimited. You may need a brake light relay like part # RM-88400. The brake light relay ensures the towed vehicle turn signal lights work in tandem with the towing vehicle lights. To find out if you need a brake light relay...
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  • Why Can Optronics Magnetic Tow Lights Only be Used with Vehicles Under 80 Inches
  • There are certain lighting requirements for vehicles or trailers that are over 80 inches wide that magnetic lights such as # TLL21RK cannot provide. You would need front and rear clearance lamps that are mounted at a 45 degree angle (PC rated). So if the back of the vehicle was a square for example, the light would be at the corner pointed half way between the side and the rear of the vehicle. They need to be placed as high as possible. You also need rear identification lamps (3) centered...
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  • Trailer Wiring Harness for a 2015 Ford Explorer that Plugs In without Hardwiring
  • Trailer wiring harness # C56278 is designed to fit models of the 2015 Ford Explorer that came with the factory connectors under the vehicle to plug in a wiring harness. If your model did not come with them then it cannot be installed. With or without the factory tow package (but with the connectors for it to plug into) the harness still plugs into the same place on the vehicle but if the wiring on the vehicle is not set up for the missing functions then you should only have the basic lighting...
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  • Can Tow Vehicle with LED Lights Connect with Trailer that has Incandescent Lights
  • Assuming the lights and wiring on your older trailer are in good condition you will not have any issues connecting with and powering its standard incandescent lights with a tow vehicle that is equipped with LED lights. The difference in light assemblies used on the vehicle and trailer will not cause any problems with function or power. If you can tell me the year, make, and model of your tow vehicle I will be happy to recommend a trailer wiring harness if you don't already have one installed.
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  • Brake Lights on Vehicle Light Both Brake and Turn Signal Lights On Trailer
  • Thank you for describing the problem you are having with your trailer. I noticed you said that the amber lights were on with the brake pedal applied. Are you referring to the amber lights on the vehicle or amber lights on the trailer? If they are on the vehicle then you would need to take it to an automotive repair shop for inspection but if you're referring to them on the trailer then it sounds like you have a separate lighting system which means the brake and turn signals are on different...
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  • Trailer Lighting Options for 1962 Airstream Undergoing Renovation
  • The vehicle-to-vehicle taillight converter part # 118158 will do what you want: separate the Ram's combined stop/turn signals into separate signals that can be fed to separate stop and turn lights on your vintage Airstream. This converter will not work with a vehicle that has LED lights but it WILL work on a trailer that has this high-efficiency type lighting. Vehicles with LED lights use much lower power signals along with lighter-gauge wiring that would not be able to operate the converter....
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  • Easier Way to Wire Vehicle that is Being Flat Towed that has Separate Turn Signals from Stoplights
  • When flat towing a vehicle with separate turn signals from brake lights the easiest solution is to wire the towed vehicle like a combined circuit vehicle. For that we have the tow bar lighting kit part # RM-15267 which wires to the towed vehicle and basically operates the brake lights of the towed vehicle like both the blinkers and brake lights. I attached a diagram that shows how all of the connections get made.
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  • Recommended Replacement 3 to 2 Wire Tail Light Converter for Motorhome Conversion to Towed Vehicle
  • For your replacement 3 wire to 2 wire converter, I recommend the Curt Vehicle to Vehicle Tail Light Converter # C56196 or the Tow Ready Vehicle to Vehicle Tail Light Converter # 118158. Either of these are specifically designed to convert the 3 wire motorhome system to the 2 wire system of the vehicle being towed. I've attached videos to assist.
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  • Do Trailer Taillights Light Up When Vehicle Presses Brake Pedal
  • Yes, trailer brake lights are supposed to light up brighter when the tow vehicle applies the brakes. They are designed to work just like a vehicle's taillights that have the brake lights and the running lights on the same circuit. If you check out the review video link I attached you can see how a very standard trailer taillight # ST8RB lights up with the running lights and the stop/turn signal.
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  • Powering Interior Lights of 2010 Lark Enclosed Trailer
  • It sounds like the interior trailer lights are wired to the auxiliary 12-volt circuit from your 7-way that is only powered up when the tow vehicle is running. Since LEDs use a fraction of the power that incandescent lamps do, I would recommend using LED interior lamps. Since it serves such an important purpose, I cannot recommend tapping lighting circuits into the break away battery. A better idea would be to use a separate 12-volt battery installed on the trailer to provide power to the...
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  • Converting Combined Turn and Brake Lights on Tow vehicle to Seperate Turn Signals and Brake Lights
  • I believe I have a solution for you, check out the Vehicle to Vehicle Tail Light Converter # C56196. This converter is designed to take combined tail light circuits and convert them to separate tail light circuits. You would not be able to use an adapter designed to convert separate signals to combined circuits in reverse.
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  • What Trailer Wiring Harness Do I Need If My Vehicle and Trailer Both Have LED Lights
  • I do have an option for you but the Hopkins Plug-In Simple Vehicle Wiring Harness part # HM11143175 is not designed to be used on a vehicle with LED tail lights. The issue is that the LED lights do not carry enough of a load therefore what we call a powered converter is needed and for that I recommend using the Curt Tail Light Converter with 4-Pole Flat Trailer Connector part # C56236 which will work with both LED lights on the vehicle and trailer. However, this harness as you can tell...
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  • Can Vehicle with Separate Turn Signals from Stop Lights be Wired for Tow Bar Lighting As Combined
  • You can easily wire the # RM-15267 to a vehicle with a separate turn signal circuit from the stoplight circuit. You would just need to wire the vehicle up like it's combined. To do this you would basically use the lights of the vehicle that control the running lights and the brighter stop lights instead of trying to use the separate turns signals. This will operate the stop lights like a combined circuit and will work great. I attached a diagram that shows how to do this. Check out "option...
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  • On Trailer Light Circuits is Parking Lights and Running Lights the Same Thing
  • Yes, trailer running lights and parking lights are the same circuit. So on a vehicle when you turn the headlights on there's the position on the selector right before you get to the headlights where all of the exterior lights of the vehicle come on without the headlights...that's what the running light circuit of trailer wiring is referring to.
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  • How To Hook Up Both the Tow Dolly and Vehicle Tail Lights To Motorhome
  • In order to have both the tow dolly's and towed vehicle's lights active at the same time while being pulled behind a motorhome, the motorhome's trailer lighting circuits must be rated for the amp draw of both sets of lights. If that is the case then what you are going to need to do is make your own custom adapter as they don't offer anything for this purpose. The parts you will need to make this adapter are the Epicord 7-Way Molded Trailer Plug with Junction Box part # 277-000141 and...
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  • Can Roadmaster Diode Tow Bar Lighting Kit # 154-792-118158 Activate Vehicle Third Brake Light
  • Yes, if you wanted the Roadmaster trailer wiring diode kit part # 154-792-118158 to activate the third brake light of your vehicle you would just need to run the red wire to the third brake light and it activate the third brake light.
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  • How Much Amperage Is Required to Add Reverse Lights to Trailer
  • If the tow vehicle has a trailer reverse light circuit separate for trailer wiring then you'd be limited by the amperage rating of the fuse that protects it. If you are tapping into the reverse light circuit of your vehicle for the light then it comes down to the amperage rating of the fuse that protects the circuit as well as the amperage rating of the lights and how many amps are left over between those two numbers. Now with that all said if you went with an LED reverse light like the...
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  • Recommended Optronics Assembly for Adding Backup Lights to Sprinter
  • I recommend going with the Optronics LED Backup Light # BUL10CB, as it will provide you with a clear, bright LED and it is DOT approved to be used as a backup lamp. The Optronics Sealed Oval LED Light # BUL78CB that you also mentioned is a nice utility light, but it is not actually DOT approved to be used as a backup lamp on a vehicle. To install the light assemblies, you can use the 2-Wire Pigtail # A45CB. The white wire will be attached to a bare metal surface of the frame for ground,...
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