Plug & Play Truck Mirrors: Your Complete Guide

Upgrading your truck mirrors can feel confusing with all the wiring, harnesses, and features. This guide breaks everything down so you know what’s plug-and-play, what needs modification, and which option is best for your truck.

Are These Mirrors Plug & Play?

The answer depends on your truck and the features you want:

• Original features: Any function your stock mirrors had (like power glass) will work right out of the box.

• 2015.5+ trucks: Modify or swap the door harness, and all features become plug-and-play.

• Hardwiring option: If your truck didn’t originally have a feature, you can wire in functions like cargo lights, turn signals, and running lights.

Your Wiring Options

1. Modify Your Door Harness

• Adds missing wires to your existing harness for full plug-and-play functionality.

• Best for: 2015.5+ trucks

• Why it’s popular: Cost-effective and straightforward

2. Hardwiring

• Run wires through the door boot to the fuse box or BCM to activate all mirror functions.

• Step-by-step instructions and video guides included.

• Best for: 2014 and early 2015 trucks

3. Swap Door Harnesses

• Purchase complete new harnesses from a dealer ($200+).

• Achieves plug-and-play but is the least common option due to cost.

Check Engine Light & Temperature Sensor

• Our diesel mirrors come with a ambient air temperature sensor.

• Fully compatible with RPO code K40 (Diesel Exhaust Brake), so no worries about check engine lights.

How to Identify Early vs. Late 2015 Trucks

• Check the driver’s-side door jamb sticker (not the door itself).

  • Built on or before 08/14 → Early 2015

  • Built on or after 09/14 → Late 2015

• Can’t locate your build date? Email sales@lionsdenoffroad.ca with your VIN, and we’ll check for you.

Notes for 2014 & Early 2015 Trucks

• These trucks have extra circuits missing compared to later models.

• To make plug-and-play mirrors work, you’ll also need the RZY harness (available in the options menu).

• Most owners in this category prefer hardwiring for simplicity and cost-effectiveness.