From week one, the Rainier has attempted to shift into AWD when in reverse. The shuddering that results makes it very difficult to back out of a parking space. Changing the rear differential fluid ($125) didn't help. Now the bearings in the front differential just burned up. Thankfully, the Buick dealer covered it even though I am 4,000 miles out of warranty. I am considering dumping this vehicle as I drive 30,000 miles per year and can't afford to be towed to the dealer on a regular basis.
Rear cargo storage, no blind spots
Fix the AWD issues. This appears to be a common problem. Dampen the noise from the leveling system.