It sounds like the window track/motor is bad. The door panel will need to be removed in order to properly diagnose. For Safety Reasons it's recommended that the diagnosis & repair are performed by a certified technician. The window could break and cause severe injury. Earnhardt Lexus can diagnose and perform repairs. Service appointments are easily made on EarnhardtLexus.com.
I am a Lexus car owner not a mechanic so please call their service department.
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