Hello, brand new Lexus IS300h owner here, picked it up last friday, all I can say after 150 miles: it's a great ride!
Unfortunately, also encountered a disturbing issue: after starting the vehicle, a message "Clean Park Sensor - Lexus Park Assist Unavailble - Check Surroundings" pops up.
Of course I cleaned them all, but that doesn't help.
The one thing is: the message doesn't always come (one start out of two, on average).
The other thing is, the parking sensors DO in fact work!
Anyone else had this problem?