I have had the car for a while and its just the best thing ever but there are a few things that are now happening that are making me concerned. The biggest problem is a shudder or vibration that seems to be coming from the rear of the car. It was almost imperceptible unless you had the rear windows down but now its become a steering wheel vibrating shudder at 70 mph that will make you want to pull over. I have new front rotors/brakes but haven't done anything in the rear. Does this sound like a warped rear rotor?

Second, the cruise control isn't working. It went away little by little. I checked the fuse, its ok. Any ideas, I miss my cruise.

The ABS/TRax light is on all the time. What should I look for to fix and if I take it somewhere, what scam are they going to try to run on me?

Other than this, it is the finest car I have ever owned and enjoy driving it more every day I own it.

Thanks.