Not Tahoe, but up the canyons in Utah to the resorts almost everyday. My prior car to my 09 Prius was a Lexus Rx 300 with all wheel drive. Now when there is a dump I park my car at the bottom of the canyon and take the bus up. No biggie. I find the car works just fine with the traction control. But wasn't the sensitivity of it toned down a bit by 09?