Style: Inspired by the design of the more modern looking tail lights from the Escalade, these look right at-home on the rear end of the Yukon too. The linear 3D light blades serve as the brake light and turn signal. The turn signal, which blinks in amber and the brake, which of course is red are both equally impressive in the intensity department both day and night. Compared to similar tail lights online, the overall fit and finish are much more OEM-like on the Morimoto version, easily making these the best set of aftermarket tail lights on the road for the Yukon! Reverse Lights: Are often over-looked, but not with the Morimoto XB tail lights for your Yukon. While they come standard with LED reverse lights, just wait, there's more! These tail lights allow a plug n play installation with the optional LED Backup Boost Bar which mounts to the top of your license plate frame and provides an extra 2,700 lumens of controlled light output in reverse. Yeah, Morimoto customers like to see where they're going in reverse too! Style and Safety: All Morimoto tail lights are designed to comply with all DOT, SAE regulations for rear-facing lamps. We pride ourselves on offering stylish, high-performance and safe products for serious enthusiasts, which is why all new Morimoto products are verified by trusted third party labs for compliance and are backed with an industry-leading five-year warranty. Full Compatibility: The XB Tail Lights are compatible with all 15-20 Yukons and are 100% plug n play during installation. No modifications are required to install the tail lights, or the optional boost bar reverse light.