One problem related to engine squeaking noise has been reported for the 2011 GMC Acadia. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 GMC Acadia based on all problems reported for the 2011 Acadia.
I'm the 2nd owner and so far I've had to have a motor mount & 2 catalytic converters replaced. The ac started having issues with the controls not working & then the ac completely broke and leaked all the refrigerant which made a huge mess. There's a horrible oil leak that can't seem to be stopped. The brake pedel makes a loud squeaking noise. And now there is some strange noise coming from behind the dash, uncertain if it's the radio, cd player or ac/heat. All these problems at under 80,000 miles!!!.