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GM Modify Door Harness for Plug and Play Tow Mirrors | 2014-2019 Silverado & Sierra
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Sold as a set (kit covers both sides). This wiring kit adds the missing wires to your GM door harness for upgrading from small mirrors to towing mirrors. This gets ALL of the lighting features working properly on towing mirrors. This kit is all that is required for 2015.5-2019 trucks. Why spend $200+ on replacing your door harnesses when you can just add the missing wires for a fraction of the price?
This upgrade will work for OEM mirrors (RPO code DQS or DPN) and any aftermarket mirrors that properly wire all of the wires into the OEM style connector.
| Vehicle fitment | Fitment note |
Link to installation video (original mirrors WITHOUT signal): https://youtu.be/hDQBOxc9Aug
Link to installation video (original mirrors WITH signal): https://youtu.be/cjb_LKi6Hlo
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FAQ
This harness is designed to work with 2014-2018 Silverado/Sierra 1500, and 2015-2019 Silverado/Sierra 2500HD/3500HD.
If you have a 2014 or early 2015 you will also need our RZY harness. You have the option to purchase it in the drop down menus above.
Please note, you must have power adjusting mirrors for this harness to work (glass movement with switch) and the mirrors must be wired for plug and play operation.
Yes, if you have the correct power folding switch. We offer the switch in the drop down menus above.
The date is stamped in the corner of the door sticker in the drivers side door. If it was built on or before 08/14 then you have an early 2015. If it was built after 08/14 then you have a late 2015.
If you cannot locate your build date, please email the VIN to sales@boostautoparts.com and we can look it up for you.
Power adjust, defrost, power fold, running light, signal, and cargo.
Please note; the mirrors must be equipped with these features and be properly wired for plug and play for them to work properly.
Yes, this will work on any mirrors that are setup for plug and play functionality. This includes OEM and aftermarket.
Yes, but you will also need the RZY harness. You have the option to purchase it in the drop down menus above.
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Our team is made of automotive enthusiasts who drive trucks and SUV's. We spend our weekends working on our own vehicles, which is how we're able to deliver the best technical support and DIY install guides. We've been in your shoes many times before.
Because our employees are enthusiasts, many of our product ideas come from things we want to put on our own vehicles.
WHY CHOOSE BOOST
We might be biased, but we think the choice is clear. Boost is better...because of this:
LIFETIME TECHNICAL SUPPORT
Our commitment to our customers never ends. Whether you call our technical support team 10 minutes after ordering or 10 years after ordering, you will receive the same high quality of attention & care.
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We know bad instructions suck, that's why we don't offer a single product on our site that doesn't have a detailed tutorial video. These videos are filmed by enthusiasts so we make sure you get the info you need in an easy to understand format.
1 YEAR WARRANTY
All of our products come with a 1 year warranty. Vehicle manufacturer warranties are typically 36,000 miles but vehicles last 200,000+ miles. You can rest assured our products are designed to last the lifetime of your vehicle as well.
CUSTOMER REVIEWS
Customer Reviews
4.8 Based on 303 Reviews
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AC
04/25/2024
Austin C.
United StatesGreat product
Super easy install everything works with no issues.
MH
04/08/2024
Michael H.
United StatesTow mirrow gm harness
Fantastic, installation video was extremely helpful
AM
03/31/2024
Adam M.
United StatesTow Mirror Wiring
Second time having to get these wires (2nd truck to do them on from DL8 to tow with turn lights) and both times wired no issues.
CP
11/20/2023
Cory P.
United StatesExactly what I needed
Install went very easy thanks to the pre-terminated pins and sockets as well as the videos. Couldn’t have been easier.
KM
11/07/2023
Kelly M.
United StatesPerfect!!
I have no complaints! It all worked perfectly!! Thanks Boost Auto
QUALITY YOU CAN TRUST
All of our design & development, assembly & quality assurance takes place close to home, in our Northern Illinois Headquarters. Everything from 3D CAD design & prototyping to on-vehicle testing happens right here in America.
A PERFECT FIT
This ensures the accuracy of vehicle fitment across the entire range of trucks manufactured and sold in the United States
LOCAL SUPPORT
Plus, ALL of our support staff, ready to help you with your purchase, live here in West Chicago
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