I have a 2019 GMC Sierra AT4. My truck just downloaded/installed a software update this morning. There's no description of the changes made, so I'm curious, does anyone know how to find out what changes were made?
Real nice! I have a black AT4 too, and have considered doing this at least to the hood. Experience with windows is the deflectors I used made way too much noise. How’s the noise level with these deflectors? Sent from my iPhone using Tapatalk
What specific truck and mirror do you have? I have a ‘19 GMC AT4 with Auto dimming mirror. What’s the trick to remove the cover? I’m a bit afraid I’ll break mine?