Momentary power-loss - 2014 gs350-f awd
Within weeks of my buying this lovely car (bought new in January 2014), from time to time, when proceeding from a full stop (at a light, or stop sign), I roll into the path of oncoming vehicles but when I try to accelerate, there is absolutely no response for perhaps 2 – 3 seconds. My natural reaction to this delay is to pump the throttle, but because this is a drive-by-wire car, this has absolutely no effect....and then the power comes back and the car accelerates normally and I don’t get run over and life goes on. This occurs sometimes several times a day and sometimes on consecutive days and them sometimes there are several (5 – 10) days between incidents.
I have complained three times now, to my local (and selling) Lexus dealer, in London, Ontario, Canada without any solution. The first two times, they said that they’d never heard of such a problem. However, the 2nd time, they sent me out with the Shop Foreman for a 20 minute drive (without experiencing this problem), who then hooked up their diagnostic system (which told them what, I do not know) and his opinion was that probably the TRAC system was interfering, but this is not a system that can be adjusted for sensitivity....and probably it interfered because one or more of the tires was on a wet or sandy or otherwise slippery surface and the system was reacting to wheel slippage (and I responded that at no time were these the conditions....it was always when the roadway was completely dry, etc.)....and the 3rd time (mid-October 2014) they said that a couple of other customers had also reported this problem, since my last visit to complain, but they have not been able to find either a cause or a fix for it, but they will keep looking and get back to me ASAP....and to date there has been no further contact.