Anybody else notice their 2012 makes a single squeak from the passenger side motor area when you turn the key off? Mine only started doing this recently in the warmer weather. The hotter it is the louder the squeak and there's no squeak if the motor has only been running for a short time but in hot weather and a hot motor it squeaks pretty loud when I kill the motor.
It's a manual trans. From the driver's seat it sounds like it's coming from the passenger side of the motor. It might be in the dash somewhere around the HVAC box. It almost sounds like a vacuum leak or a vent releasing pressure, the way the sound trails off as it concludes. I did a brief visual inspection with the motor off. Didn't see anything obvious from above or below the motor.