This is my second SRX, previously had a 2004 V8, currently have 2007 V6. The 2007 developed a untracable noise at about 7,500 miles. GM/Dealership has done all that they can do allowable by TSB's.
The noise is audiable at hwy speeds 50 - 70 mph. I would call it a "pinging sound" or engine knock. The sound is just loud enough to be annoying. They have changed the exhaust system, checked the front differential, checked the harmonic balancer and heat shields.
The kicker comes when GM customer service wants to close the two complaints that I've made ablout the problem. I told them that the issue is still unresolved, leaving a customer unhappy. No response! The rep told me to drive it till it broke and then take it in for repair.
If I knew when I was shopping for the second SRX that I would have such aggravation with it, I might have looked elsewhere for a vehicle.
I like the car, don't like the untracable noise and the lack of aggression by GM to FIX the problem. $50,000 + should be reason enough to make it right.