When vehicle is between 2nd and 3rd gear going at a consistent speed there is a vibration. Vibration goes away upon acceleration. It does this as well between 4th & 5th gear. After 55mph it doesn't happen. Called crest Acura and was told that it is the "deactivation of cylinders and that is what it is supposed to do." I then took the vehicle to my mechanic who stated it should not do that. Took vehicle to crest Acura on 2/13/14 to address the blue tooth that is awful and had a technician ride with me to feel the vibration. The tech said there have been other complaints regarding the vibration but Acura has not come up with a fix for it. He stated he had a call into Acura. I was told once again that it is normal for the vehicle to do that by the service manager. The bluetooth complaint is: I can hear fine with it but people cant hear me. They replaced the bluetooth microphone on 2/21/14 but it did not fix the problem. I would like Acura to address these 2 issues as I am not the only Acura Rdx customer to have these issues. A vehicle of this caliber should not vibrate!

- Cicero, NY, USA