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GM Tow Mirror Signal on Glass Upgrade Kit (2019+ Style)
GM Tow Mirror Signal on Glass Upgrade Kit (2019+ Style)
GM Tow Mirror Signal on Glass Upgrade Kit (2019+ Style)

GM Tow Mirror Signal on Glass Upgrade Kit (2019+ Style)

5 reviews
$ 99.95

In-Stock Expedited options available at checkout.
Ships Within 1-Business Day

This kit adds an integrated red turn signal on glass to your upper mirror glass for added safety and visibility. Easily installs in minutes onto your OEM towing mirrors, with a fully plug and play wiring adapter. Replacement glass offered with or without blind spot monitoring. Must purchase the glass according to your original mirrors configuration. 

Fitment includes 2019 and newer Chevy Silverado or GMC Sierra 1500, or 2020 and newer Sierra or Silverado 2500 and 3500 trucks. 

Replacement upgrade for GM OEM numbers: 84753945, 84753944, 84301410, 84301411, 84819559, & 84819560

 **Our glass does NOT come equipped with Auto-Dim, you will lose this feature if you currently have it. We ask whether you originally had it because it dictates other fitment on the glass assembly**

Link to Instruction Manual: 2019+ GM Signal On Glass Upgrade Kit Instructions

Fitment: This product fits a variety of trucks including L5P Duramax models. Please see below fitment list:



Customer Reviews
3.8 Based on 5 Reviews
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Dallas G.
United States United States

Updated glass

It was great but anyone with a 20+ needs to modify the rear of the mirror to get full adjustment There are small brackets on the back to hold an additional wiring and those need snapped off to allow full adjustment of the glass for the drivers side

Houston H.
United States United States

GM Tow Mirror Signal on Glass Upgrade Kit

Excellent glass quality, very easy installation. However if you are buying the Auto Dim make sure your vehicle has the Auto Dim feature.

David M. Hufford Jr
United States United States

2021 Chevy turn signal glass and heated convex mirror

Good, everything was easy to install. All plug and play..

James B.
United States United States

Easy to swap.

The reflection quality is not the same as OEM reflective quality. There is a difference! They are manageable enough that I chose to leave on for the added blinker. They are properly installed & retainer clips are positioned correctly.


Boost Auto Parts

Hi James, Thanks for your feedback. All our our mirror glass is designed to meet OEM specifications. We would be happy to take a look at how your glass is installed on and help provide any potential solutions. Please give our Technical Support team a call at your convenience. 765-831-2830 Thank you, -The Boost Auto Team

Michael M.
United States United States

Horrible replacement mirrors

Waste of money. Blinker works great. Mirror is made from plastic. Mirrored vehicles. Look like space ships. I will gladly sell these to anyone that wants a plastic mirror that makes you sick while looking at these.


Boost Auto Parts

Hello Michael, We're sorry to hear you're not satisfied with your purchase. Our Signal on Glass Upgrade kit is designed to meet OEM specification and quality. If the stabilization pins behind the glass are not firmly attached to the mounting plate, glass distortion can occur. Please reach out to our Technical Support team so we can help resolve your concern. Thank you, -Boost Auto Team