GMC Sierra / Denali Automatic High Beams Explained
November 25, 2018
Banner, GMC Truck Stuff, How To
Well, just when you think you knew everything… someone shows you something new. In this video FoG explains the function of the GMC automatic high beams. Hopefully we did not keep you in the dark too long! We have seen these on the 2015 and the 2017-2018 GMC Sierra 1500 and 2500 Denalis.