2008m3

I have a rear suspension squeak when going over dips and bumps. Car is a 2010 RX350, just out of warranty with only 43K miles. I had this resolved DURING warranty. All they did was lube and grease the rear trailing arms. The dealer has again identified the noise to the rear trailing arm bushing with the car now being out of warranty. . They told me Lexus corporate is aware of the issue but for now it is a "normal" characteristic of the car on 2010-2013 RX350. Apparently they all squeak. I was told that changing the rear trailing arm will fix the problem, HOWEVER the squeaking will come back. Lexus corporate may be working on how to fix the issue and address it at a later time. For now all they can do is grease and lube it at best. I thought there was an update to this part. Now mine even squeaks when you get in and out of the rear seats now. It's getting pretty loud and annoying. This is what mine sounds like now just barely pushing the car around with one hand and the other hand recording with my phone... lexus rear trailing arm squeak.MOV

3 days after taking delivery of my car I registered my car on lexus.com to find out that my car was purchased from tacoma, washington with a build date of 4/10 and my dealer took the car in on 9/10. In my account, I found out that the car only had 11 miles and already had a check engine light, awd drive warning light, and a tpms light, which was serviced and fixed. This of course was never disclosed to me. If I knew the car had these problems at 11 miles I would have chosen the other car that was also available. The dealer tells me that I have nothing to worry about because it was a dead battery that set off the check engine light and the awd light and the tpms light. The dealer said they re-charged the battery, checked and reset all the codes, and everything checked out ok. Would asking the dealer to extend the warranty be reasonable? What should I ask from the dealer as compensation?