Well, we've been an owner of a 2016 MDX SH-AWD Tech since March. We love the vehicle, great value and this is my 3rd acura and we just came from a 2012 lease that was expiring. At around 5000 i began to hear a faint chirp sound. After reading numerous posts I saw there was a TSB for it. Thanks to our wonderful dealership's service department (sarcasm) who kept saying they don't hear anything and that it's normal I, wondering why I had to convince them, had them do the TSB for the chirping sound. I was really excited and glad that it was being done. 20 minutes from the drive home from the dealership the sound was just as prevalent as before. The advisor said the tech is on vacation so wait so he can diagnose it. 9 days later we are finally allowed to bring it back and the tech, advisor and another advisor come out and listen only to say it is normal. I said wait, this is not normal. if it's normal then it would have sounded like this the day we drove it off the lot, not something that comes up after 5-8 thousand miles. Pretty much as was to just live with it. So, I called Acura Client relations. They call the dealership and thanks to their no-rush policy (5 days later) they say bring it back since it wasn't documented that the sound was normal. I bring it back and they keep it for another 3 days only to find out that it is considered normal. What's their form of diagnosis? Well, they said they parked it next to another MDX and let it idle for an hour or so thus coming to the ingenious conclusion that it's a normal sound. The advisor even went further to state it's like a diesel. I said no, i've sold BMWs in the past I know what diesel sounds like and our previous IS250 had direct injection so the ticking is different from the chirping. I call Acura Client relations again and I let them know i'm taking it to another dealership. I explained the situation and even played a video clip of the sound. The dealership takes it apart and puts it all back together. They find out that the TSB had been done but that the spacer was bent. So, the previous dealership we bought our 2nd MDX from doesn't even bother to take it apart to diagnose the problem and let me drive off the lot with our toddler and making it seem as there is no fix yet? Unbelievable. They really believe that the general public has no idea about vehicles and that we should truly trust them. Hmm, they dropped the ball on this one and I let Acura Client relations know. After numerous visits and days without our vehicle I am happy to say the sound is gone and for those with the issue to not rest until it's solved. The money one pays pays them so they're not really doing anyone a favor by going the extra mile. Oh, I called the original dealership to let them know. They're glad it's fixed but the advisor still says well, we couldn't hear it. I thought this was a luxury brand with impeccable service. I do not expect miracles but I do expect a level of trustworthiness.