on my bmw it has a tiptronic tranny, and when i put it in M mode, i used to redline thru all the gears =X when racing anyway.. and ive had the car for years, not 1 tranny problem.. ive even had it checked out b/c i thought i might have bad wear on the tranny.. everything on the tranny is great, but im not sure how lexus trannys are.. on bmw's they have alot of safety things on them, to avoid u from actually hurting the tranny.. if at any point u do something wrong with the tranny it goes into what the tech said 'safe mode' which is like 3rd gear, to avoid u from hurting the tranny.. hopefully lexus has something like bmws so u know when you've done wrong..
P.S. when this did happen, all u had to do was turn the car off, then turn it back on and the tranny would back to normal, if it did stay in safe mode, then u know its time to take it to the dealer so they can reset it & find out whats up
P.S. when this did happen, all u had to do was turn the car off, then turn it back on and the tranny would back to normal, if it did stay in safe mode, then u know its time to take it to the dealer so they can reset it & find out whats up