BigMikeISF· Premium Member
I would report yours to the dealership as well. If a bunch of individuals are reporting it, Lexus will look into it and make sure everything is alright with the transmission. I don't think it's anything to be worried about but you can never be too suremine had the problem for the 3rd time today. it has 1004 miles on it. it happened when engine was cold after i had driven for about two blocks. i was in normal mode and outside temperature was 55 degrees.
i am not convinced it is a build in feature of the car. if that's the case, it should happen much more often. i am not suprised your dealer has no clue since they probably sold very few F so far and this problem doesnt seems to be universal. i hope in a few months, Lexus will have better clue as more people complain about it.
I've had this happen in previous cars. Once the car gets warmed up and things get flowing, the car returns to normal. I wouldn't be too worried about itI have had the unfortunate pleasure of having to drive the IS-F this winter in the NorthEast because the "beater" car is well, not working (ironic).
Seems to me, the IS-F just hates the cold. In the low teens or single digit temps the engine noticeably studders on start, the shifts are not nearly as fluid, and the in-dash display gets stuck if I try to change to another screen. These problems go away after a minute or two of idle or driving.