Shinedown

This winter I've noticed that the front windows in my 2013 Gs350 seem to move slower up and down than they us d to.
Has anyone else had this problem?

newgsman

iTrader: (4)

I can't really say anything about the GS350 but for other cars I have owned including older GS's during the winter time the windows will open/close more slowly if the battery is loaded down because of a whole bunch of accessories like rear defroster, seat heaters, blower fan running at full tilt and the car is at a low idle. If they windows continue to move slowly when you increase engine rpm's you may have a different problem. I would check the condition of the battery before worrying too much about the window motors.

TrevorTran

By default, the windows move slower when closing at the very end, which is one of the safety/luxury features of the GS.
If your windows are just moving slower from open to close, or vice versa, then I agree it may be an electrical issue.

songoku

It could be a sign of window regulator/motor going bad as well.

eXtremeoak

I'd get it checked at the dealership just in case. 2013 is too new to have these type of issues.

Staggered3

Check your battery, I had an issue where my window wouldn't go up all the way, dealer swore up and down it was the tint that had been on the car for like a year, I was like BS, if it was the tint this should have happened immediately..: turns out one of the cells in the battery was going bad...