My 2019 Silverado tailgate would not open without pushing button many times. After getting it open I pushed the locks into locking position on both sides with my finger and could see the right side not unlocking when pressing the button on my key fob. It would take 3-7 attempts before unlocking. I then removed the back panel off of the tailgate to check the actuator and noticed the right side rod that goes out from actuator was more loose than left side. I removed it carefully and took a pair of pliers and bent in the 90 degree bends an both ends of the rod just a little more and replaced it back into it's mechanisms and put the the small latches back on. It did the trick. Opens on first try every time now. I guess over time those rods just get a little loose or the holder gets worn.