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My IS has the feature where I can open all of the windows and the sunroof by holding the remote unlock button which has come in real handy during this extended heat wave in the Midwest. But, I can't find out whether or not this feature is on my 2012 LS 460.
Dealer said that 2012 LS has this feature - they will turn it on at the first service visit. On these hot days in Kansas City (something like over 15 days with temps over 100 degrees), this feature really comes in handy - car probably cools off by 20 degrees since the remote button works from about 100 ft away.