Automotive Frequent Questions

Q: I don’t see an answer to my question. How can I contact Muth Mirror Systems?

A: Go to our Contact Us page to see all of the ways to contact us! Click here!

Q: I see a mirror size listed; how do I compare to my mirror?

A: You will need to measure your mirror from the lower outboard side to the upper inboard side for each mirror on your vehicle. If there are multiple sizes listed, selecting the correct size is critical to assure a proper fit. If you only see one size, it’s likely your vehicle only has one mirror available from the factory. (It doesn’t hurt to measure if you’re not sure.)

Q: What type of warranty comes with the Signal Mirror® kit?

A: The Signal® mirror is warranted to be free from defects in materials and workmanship for a period of 3 years from date of sale to original purchaser. This warranty excludes labor, broken glass, or other situations that cause harm to the product after it has been shipped from the factory–such as damage, unreasonable use, modifications, or alterations. In the event of a defect, Muth reserves the right to evaluate the problem through Quality Control and at Muth’s discretion, replace the defective product. Any warranty replacement part will be charged to the customer when shipped. Credit will be given when the defective part is returned to and received by Muth, and the replacement is warranted. If you are a credit card customer, credit will be issued to your account within five (5) business days. If you are a COD customer, a check will be written to you within five (5) business days. If you have an open account, a credit will be issued against your account. Warranty covers replacement cost of product only.

Q: What is the return policy?

A: Obtain a Return Authorization Number within 30 days from the date of original invoice. Return Authorization Numbers are good for 30 days. No return will be allowed if the return request exceeds 30 days from date of invoice. Any product returned without a Return Authorization Number will be refused. All products returned in the original packing, in a new and unused condition-with all parts, labels and instructions included-will be credited the original invoice price less a 10% restocking fee. Any product returned in a used condition or with contents missing will not receive credit. Shipping charges on all returned merchandise must be prepaid. Credit will not be given on shipping and handling charges.

Q: I already have Signal Mirror®. What is the best way to care for them?

A: The best way to keep your Signal® mirrors looking brand new is to use a glass cleaner and a soft cloth. If you are cleaning the painted or chromed surfaces of your mirror housings, use a proper cleaner.

Q: What is Signal Mirror® technology and how does it work? What will I see?

A: That’s a great question! Click here.

Q: Are Signal® mirrors street legal?

A: Yes. As a matter of fact, many sheriff and police departments use and enjoy the additional safety provided by Signal Mirror® technology. Click here.

Q:How are the LEDs in the Signal® mirror powered?

A: Power for the LEDs in Signal® mirrors are supplied from the left and right turn signal circuit in your vehicle.

Q: I have a 2010 model year vehicle. Your Signal Mirror® kit covers up to 2009. Will it still fit?

A: It’s possible. Most vehicle manufacturers change body styles and trim packages every couple of years. If the style of the mirror housing itself has not changed from 2009 to 2010, there is a good chance that the Signal Mirror® kit will work. Every year we verify the new model year vehicles to ensure compatibility with our existing kits. This process does take time, however, and we are constantly updating our supported vehicle database. A matrix of our currently supported vehicle models and years can be found here.

Q: I currently have EC (electrochromic) exterior mirrors on my vehicle, do the Signal® mirrors have this feature?

A: With the exception of kit #220-0338-H our Signal® mirrors do not have the EC (or self-dimming) feature available. You will need to “cap off” the wires for this feature during installation.

Q: When I install the Signal® Mirrors, they work with the turn indicators, when I have the lights on, but when they’re off, the mirrors are lit all of the time. What’s going on?

A:It’s likely your particular vehicle uses your front turn indicator lights as the Daytime Running Light (DRL) feature. You have the option to see if there is a process to disable the DRLs or connect to the rear turn indicator circuit. Be aware that many times the rear turn may also cause the mirrors to work with the brakes too, just like if a Brake Module was installed. This is a common occurrence on newer Corvettes.

Q: What is involved with installing the Signal Mirror® kit?

A: The basic steps, for most kits, to installing Signal® mirrors are: remove the door panel, disconnect and remove the mirror housing, remove the factory glass from the mirror housing, install the Signal® mirror in the mirror housing, route the Signal Mirror® wire harness through the door frame, and splice the Signal Mirror® wire harness into the left and right turn signal wires. Take a look at our installation instructions for a specific vehicle here. Professional installation is recommended.

Q: Is it absolutely necessary to have the Signal® mirror installed by a professional? Can I do it myself?

A: It is not absolutely necessary to have a professional install Signal® mirrors, only recommended. Most Signal Mirror® installations require removing the vehicle’s door panels and plastic accessories. You can look at our installation instructions here to help you decide if you want to do the installation yourself. You can call us at 1-800-844-6616 or download our Key Installer listing from here to help you find a recommended professional installer in your area. Most installations can be done in 1 to 2 hours by a professional and may take longer if you do the installation yourself.

Q: I’ve decided that I do need a professional installer. Where can I go?

A: You can call us at 1-800-844-6616 or download our Key Installer listing from here to help you find a recommended professional installer in your area. It is in .PDF format and includes key installers for each state as well as specific contacts and phone numbers within each company.

Q: I have power adjustable mirrors. Will Signal® mirrors allow me to keep my power adjustment?

A: Yes, our entire line of vehicle specific Signal Mirror® kits work with power mirrors and all of the power features operate as normal. Most of our kits are mirror glass replacements, not whole mirror housing replacements.

Q: I have manual adjustable mirrors. Will Signal® mirrors still work on my vehicle?

A: It depends. In certain situations Signal® mirrors will work on a vehicle with manual mirrors. A good example is the Dodge Dakota 5×7 mirror. Dodge makes both a manual and power mirror on that vehicle. Our Dakota 5×7 kit works on both manual and power mirrors. Most vehicles we support never had manual mirrors to begin with.

Q: Can I replace my heated factory mirrors with non-heated Signal® mirrors?

A: Yes. For any specific vehicle, our non-heated Signal Mirror® kits are the same size and shape as our heated Signal Mirror® kits, except there is no heater element on the back. Simply leave the factory heater wires disconnected and sealed in tape to prevent a short.

Q: Can I replace my non-heated factory mirrors with heated Signal® mirrors?

A: Yes you can! You will need to select the heated Signal Mirror® kit for your vehicle (if available) AND the H-Mod which adds the necessary wiring to safely allow use of the heated function on your Signal® mirrors. (We do not recommend installing heated Signal® mirrors on a vehicle that originally had non-heated mirrors while attempting to hook up the heater without the use of the H-Mod, as it is very possible to cause damage to the vehicle’s electrical system if the additional draw from the heaters on the mirrors is added to the wrong circuit.)

Q: What part of the mirror is replaced? The mirror or mirror housing?

A: Most of our kits replace the mirror glass only, not the mirror housing. This also means that the Signal® mirror does not interfere with the power features in your mirror housing or need additional painting prior to installation. Our ‘CK‘ style truck Signal® mirrors replace the entire mirror housing as well as the mirror itself. The ‘CK‘ style truck kit will work with both power and manual original mirrors. If you have manual mirrors now, the kit will not retrofit the vehicle to have power mirrors.

Q: I broke a mirror. Can I purchase just one mirror?

A: Yes! You will need to verify that you haven’t damaged the mirror housing or motor mounting so the new mirror will function properly. If everything is intact, you can order one mirror from the business where you originally purchased your Signal® mirrors, you can download our Key Installer listing to find a local store to you, or you may contact us directly.

Q: Do Signal® mirrors come standard on any vehicles?

A: Yes, they do! As a matter of fact, during the 2007 model year, over 1,000,000 new vehicles will come equipped with Signal® mirrors. Contact your local dealer for availability. If Signal® mirrors aren’t standard, just check our website to see if an aftermarket kit is available.

Q: Are there any vibration issues with Signal® mirrors?

A: We test all of our Signal Mirror® kits on many privately owned vehicles before releasing them to production. If we feel there may be a vibration issue on any particular vehicle, we include special discs or anti-vibration tabs that hold the mirror “tighter” to the mirror mount, which eliminates vibration. Often, our mirrors hold more securely to the mirror mount than the standard factory mirrors.

Q: What color are the LEDs in Signal® mirrors? Do they come in other colors?

A: Our Signal Mirror® retrofit specific kits use red or amber LEDs. You will need to specify which color you need when you order. Contact us or your local dealer for ordering details.. Our Wide Angle Signal® Mirror comes in your choice of either red or amber.

Q: What are the dimensions of the Wide Angle Signal® Mirror?

A: The Wide Angle Signal® Mirror is 3″ in diameter.

Q: Are there any vehicles that shouldn’t use the Wide Angle Signal® Mirror?

A: This kit is universal and will work on most vehicles with the exception of vehicles with multiplex wiring, high-end vehicles, and vehicles that have side air bags located in the door. If you’re not sure, contact your dealer.

Q: Can I add the MultiFunction Module or Brake Module to a Wide Angle Signal® Mirror installation?

A: Yes, these modules will enhance your Wide Angle Signal® Mirrors too!

Q: I have heated mirrors. Will the Wide Angle Signal® Mirror still “bond” to the mirrors when the heaters are on?

A: Yes.

Q: How are Wide Angle Signal Mirror® mounted to my factory mirrors?

A: Wide Angle Signal Mirrors® are mounted to the factory mirrors using pressure sensitive adhesive.

Q: I have power mirrors. Will the Wide Angle Signal® Mirror work?

A: Yes. When installed properly, there is no interference with the movement of the factory mirror.

Q: I have manual mirrors. Will the Wide Angle Signal® Mirror work?

A: Yes. When installed properly, there is no interference with the movement of the factory mirror.

Q: Are there any vibration issues with the additional weight of the Wide Angle Signal Mirror® on the factory mirror?

A: Not typically. The Wide Angle Signal Mirror® weighs less than 2 ounces.

Q: Will Wide Angle Signal® Mirrors distract my attention from the road?

A: No. While surrounding drivers see a bright, attention-getting display, the driver of the vehicle equipped with Signal® Mirrors sees only a subtle telltale display – a reminder that the Signal Mirror® is activated. To learn more you visit our YouTube Channel which demonstrates Signal Mirror® technology.

Q: How are the LEDs in the Wide Angle Signal Mirror® powered?

A: Wide Angle Signal® Mirrors are powered through the vehicle’s turn signal wires via a discretely hidden wire harness.

Q: Is it necessary to have the Wide Angle Signal Mirror® installed by a professional?

A: It is not absolutely necessary to have a professional install Signal Mirrors®, only strongly recommended. Mechanically savvy consumers are capable of doing the job themselves. Most Signal Mirror® installations require removing the vehicle’s door panels and plastic accessories. You can look at our Wide Angle Signal Mirror® installation instructions here to help you decide if you want to do the installation yourself.

Q: Can I download the Wide Angle Signal Mirror® installation manual before I purchase?

A: Yes you can. Download a copy here.

Q: I would like to have my Wide Angle Signal Mirrors® installed by a professional. Who is in my area to install them?

A: You can call us at 1-800-844-6616 or download our Key Installer listing from here to help you find a recommended professional installer in your area. It is in .PDF format and includes key installers for each state as well as specific contacts and phone numbers within each company.

Q: I want to use your instructions as a guide for a different project. Is that OK?

A: The ability to make the instructions accessible for customers both pre and post sale is very important, however we realize some may not use these with our products. It is important to understand the methods suggested for mirror glass removal are designed to preserve the motor, not necessarily the mirror glass. The concept is based on the fact you would have replacement mirrors at hand with the kit you would be installing. As stated on the instructions, you are responsible for any damage you may cause to your vehicle while performing any installation.

Q: How is the wiring configured for the Wide Angle Signal Mirror®

A: Two discrete wires from each Wide Angle Signal® Mirror are routed and spliced into the vehicle’s turn signal wires, typically found under the dash.

Q: Are Wide Angle Signal® Mirrors street legal?

A: Yes.

Q: What if I need help while completing my Wide Angle Signal Mirror® installation?

A:Call our tech support at 1-800-844-6616 and a Muth representative can help you with your specific situation.

Q: What color are the LEDs in Wide Angle Signal® Mirrors?

A:The Wide Angle Signal Mirror® LEDs come in “red” or “amber”.

Q: What if I need help while completing my Wide Angle Signal Mirror® installation?

A:Call our tech support at 1-800-844-6616 and a Muth representative can help you with your specific situation.