Took the car to the dealer since it was still under warranty. The service consultant had never seen this occur. The service technician had to call Lexus service support for guidance. He ended up disconnecting the battery for 15 minutes and reconnecting it. They called this a "hard reboot" of the vehicle computer system. Everything is now working fine and I got a free car wash to boot. 2 hours time lost but now I know how to fix a recurrence. With all the computer and electronics on today's vehicles, it makes me feel compelled to purchase extended warranty coverage.
I did purchase the extended warranty for this very reason.
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in 10 - 15 Lexus RX350 / RX450h
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I did purchase the extended warranty for this very reason.