cmsmits

Of course is installing a software upgrade at your own risk and voids the warranty. I have already an appointment with my Lexus dealer mid October, after they have received their training, to get the upgrade fixed, worst case by replacing the DCU. This will be at my own cost. However, I am a bit disappointed in the test process quality of this upgrade by Lexus.

Unfortunately I have report exact the same experience as AtomAnt. I have a Lexus ES 300h and also got the USB 3 error 1 in step 6 of the instructions: "update failed car parameter" and exactly the same hang as reported above when I retried. Also in my case the MEU was updated and all works fine except Lexus online is not functioning anymore (enable button does not respond). Can't even get to the point to login (checked this with retrieving the weather): I assume this is due to a mismatch between the MEU and DCU software versions.