I have a 99 GS300 and the left rear door power window does not operate. It will not work from the fob, driver's door switch or passenger's door switch. All other windows and sun roof operate fine...

Is the a common problem?

 

Hmmm, in my experience...in most cars, when a particular window does not work, the switch at that window is usually the culprit...check to see if the switch works on the driver's rear door.