Two problems related to water pump have been reported for the 2010 GMC Acadia. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2010 GMC Acadia based on all problems reported for the 2010 Acadia.
In 2013 GMC sent a letter that the engine coolant may leak from the water pump shaft seal and results in water pump failure. They said do not take your vehicle in unless you think you have a leak. They also said if this condition occurs within 10 yrs of the date your vehicle was originally placed in service or 120,000 miles they will cover repairs. However, at the end it says all work has to be completed by October 31, 2014. By July 2019 before the 10 yrs and the 120,000 my vehicle failed on the highway. The coolant leaking on the transfer case/axel from the water pump caused it to fail and needed to be replaced. They did not honor reimbursement and made the terms of their warning confusing and difficult to participate in. While driving on the highway the vehicle began to shake and black smoke spilled out from the hood.
Since I got the car set 2012 have stink coming from air vent a/c sometimes pretty bad now in spring when the a/c is on have a weird noise and is not cool at all and I can fell the moist besides I can see a smoke coming from the a/c vent. I now is a liking probably from the water pump. I just received a letter from a GMC seeing that they know this problem (water pump shaft seal) and they just going to add engine coolant to fix the problem. This have to be a recall. We bought expensive us cars don't sales us junk.