Did the slam-the-door trick a couple of months ago to no avail. But I tried it today....cooler weather....and it worked. Both sides work fine now. Will pick up the shim from Lexus today. Thanks to everyone!
Good Stuff!
Update: Lexus informed me to use silicone spray (on finger tip) and spread into rubber window 'casing' to prevent sticking. They didn't have a shim fix or otherwise.