Not yet experienced this myself as I'm waiting for delivery but this could be exaggerated by the fuel cutoff during coasting as all cars do when you take your foot of the gas. When you then put your foot back on the pedal the fuel supply then comes back on. My brother and I were discussing this with his car yesterday (not a Lexus) which is a manual and does this but obviosuly as the clutch is engaged you don't get the added element of the coupling engaging too as you do with an auto. I would have thought that a revision to engine management would be able to cure the problem. Question is how do you get Lexus to acknoldege it. RXMike seems to be on the case on this so I guess we'll have to wait.
Having said that this could result in a loss in responsiveness so may be a compromise which has already been taken in the development of the car. Maybe a case of Lexus having to offer the opportunity to have smoother take up and a slight loss of responsivness rather than jerky pull away.
Similiar problem with mine too, now 18 months old with 15000 miles. When I slow down to under 15 mph and then accelorate there is a definite thump from the rear end? Also when cornering into junctions there is sometimes a lag before it selects a gear?
Talking About Transmission......
in RX 300 / RX 350 / RX 400h / RX 200t / RX 450h Club
Posted
Similiar problem with mine too, now 18 months old with 15000 miles. When I slow down to under 15 mph and then accelorate there is a definite thump from the rear end? Also when cornering into junctions there is sometimes a lag before it selects a gear?