Lexus gs300 transmission problems Call 855-212-1458 for more information. Oct 22, 2015 · evo Verdict. Lexus GS300 Technical Service Bulletins Lexus GS300 owners have reported 6 problems related to automatic transmission (under the 2006 Lexus GS 300 transmission problems with 3 complaints from GS 300 Rear sunshade stuck in the up position - ClubLexus - Lexus Nov 10, 2016LS - 3rd Gen (2001-2006) - Rear sunshade stuck in the up position - I have searched the forums and found may posts on rear sunshades but the majority is ripped fabric or them not going up. The one I found on them stuck in the up position didn't have a solution or much talk on it. As soon as I get a minute I am first..