How to use the GMC MultiPro Tailgate on the 2021 GMC Sierra 1500 AT4
The GMC MultiPro Tailgate is a 6-way tailgate that was introduced on the 2019 GMC Sierra 1500 in 2018. Three years later, not a whole lot has changed and while the tailgate does offer quite a bit more utility than a normal tailgate, the frustrations we…