What Does At4 Stand For? [Solved]
Hello, iam Jeremiah Tellez, Wishing you a productive day. What Does At4 Stand For? [Solved] All-Terrain 4WD AT4 stands for All-Terrain 4WD. This is a trim level that GMC first introduced with the GMC Sierra 1500 back in 2019. It was a more premium trim and fell between the SLT and Denali versions. Now, the AT4 trim is available on other vehicles besides the Sierra 1500.19 Dec 2021 What is a AT4 GMC Sierra?...