Slipping Out Of Park!

[daronk]

Parked and turned off on about a 10 degree slope and when I got back to the car it was at the bottom of the slope!!!! There was fresh snow and I could see that the tires didn't slide because I could see the tread pattern as it rolled down. It also stopped on its own after the pavement leveled off.

Any ideas??? How does the Sequoia Parking mechanism work? Can it let go and then re-engage??

Well I talked to one tranny guy and he said that he heard of the Jeep Grand Cherokee's AWD system (viscous clutches) being able to (if there is one wheel that can slip) be able to creep slowly if on a slippery incline.

But the Sequoia is not an AWD system. It is 2WD until I press the 4WD button. Any tranny guys out there have any insight?

Later I went to Toyota and they said that they could check it out ($90) to see if there is a problem. That would be $90 to find out what I already know. The tranny operates fine on dry pavement. Also I asked that since I'm <60k that if I have it noted now that I'm covered. The answer was that since there is no actual proof or demonstration of a problem that if I go over 60K it's my dime.

Toyota said that I should just watch the vehicle to see if it happens again - not the answer that I would expect. So now I have 2500 miles to show the problem!!

Should I be calling Toyota corporate or the rep? How do I find out who the rep is for my area (03811)? Since there is a potential for damage to person & property you would think that they would be a little more concerned.