I just bought a 2007 Rav4 with 86,000 miles. A few days after getting it home I realized that sometimes when I move the gear shift to the "park" position, it doesn't actually lock the wheels. It seems like only when the gear shift is only moved into "park" lightly is when the problem occurs. If the gear shift moves in to "park" with some momentum, the wheels lock just fine. As much as I'd like to take it back to the dealership and make it their problem, the dealership is 4.5 hours away. I am very mechanical and have done a lot with cars. But, I have never dealt with this problem before. My first thought would be that the shifter linkage needs adjustment. Any thoughts on this?