2019 Silverado with 5.3 and 6 speed transmission, 10,000 miles. It has a bucking surging issue, most noticeable when accelerating or in town at lower speeds. It's done it since new. It seems like quite a few people have complained about this issue. Is there a dealer reflash available to correct this? My dealer has been less than helpful. I have Hp Tuners that I use to tune my supercharged Vette but I really would like to leave this truck alone as I hate to have warranty issues. I'm at the point I need to do something, it's aggravating when you have passengers asking what's wrong with your truck.