Toronto, Canada – By Mark Meadows
The American, hot favorite for glory at next month's Vancouver Olympics, made light of going out 18th to glide down the Olympia delle Tofane course in one minute 21.74 seconds.
Switzerland's Fabienne Suter grabbed second in 1:22.41 with Anja Paerson of Sweden third.
Vonn's second Super-G win of the season propelled her back to the top of the overall World Cup standings after previous leader Maria Riesch took too many risks on the turns and finished 15th.
"It was a good run. I made a mistake at the bottom but I'm happy," Vonn, who really powered into the corners, told reporters.
"I have a lot of confidence and hopefully I can do it again (in the downhill) tomorrow."
Bright sunshine greeted the skiers to the jagged peaks of the Dolomites and only a handful of competitors had problems after a couple of minor crashes marred downhill training over the past two days.
The famous five rings which still dominate the buildings of chic Cortina, the host of the 1956 Winter Games, will have concentrated minds on the fast approaching races in Vancouver.
Saturday's downhill and Sunday's giant slalom must be navigated first, however, even if Vonn looks almost unstoppable for the downhill such was her ease of victory Friday.
(Editing by Alison Wildey)