One problem related to strut failure has been reported for the 2013 Lexus GS. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Lexus GS based on all problems reported for the 2013 GS.
The struts are failing (leaking) and this is a known problem across the internet. Also, the door lock actuators stop working periodically. And finally, the rear defroster stoped working. I've owned much cheaper cars with well over 100,000 miles and never experienced these problems. This car only has 82,000 and well taken care of as I have another car that I lease and the Lexus is usually in the garage.