Will A

My Lexus RX 400h has been at the Lexus dealership for 2 months Stalled on the freeway . Lexus said that there was water in the vehicle and the wires shorted the control block . Replace the electrical block and added 20hrs of labor & bill is currently at $2200.00. They took it out for a test drive and after 3 miles it stalled again. Now there telling me that they dont know what is wrong with my car. SERIOUSLY!!!!! Your the experts with all the high tech equipment an tools and you technicians cant figure it out. So this is where I need advice from anyone out there who can help me make a decision on what exactly should I do.. Reject the repairs and tow the car to my house to try and figure it out. Or get legal counsel from a consumers affairs lawyer to intervene. Because actually they didnt fix the vehicle completely , So I feel like I shouldnt pay anything to Lexus for mis dignosing and incomplete work.. Whats the best solution guys.. Please Help!!

I have this same problem exactly in fact identical towed it lexus dealership first the said had water in the vehicle replaced the electric block that shorted out car started back up took it for test drive an after 3 miles stalled again been in shop for 2 months now coz they dont know whats wrong . Mentioned the ipm recall of 2011 and 13, but said they cant find that recall in there system. Im frustrated please help any suggestions?