Originally Posted by Scooped
Dealership time - dont try and live with it. You need to start documenting this problem just in case they cant find a solution and you need to take it to the next level.
This is excellent advice. Lot vehicles are prone to vibration just because they sit and the tires flat spot, so it takes 10 miles or so for them to warm up and become round again. Then you have to consider what brand tires you have. IMO the stock tires are shit and they have cause me considerable grief over the years. A drive line vibration may also be to blame.