So I recently bought my pre owened Cadillac CTS 2.0 luxury. It's a great car but I'm having two minor issues with it. First the cup holders are getting stuck like the motor isn't engaging(stuck open). Second the cue system seems to have a very strange buzzing sound coming from the touch capacitive ac control. It turns off when I lift the secret compartment and starts again when I close it. It's fairly annoying and I just wanted to know if this was normal or if I had a problem and if either would be covered in my Cadillac bumper to bumper warranty.