There is a problem with the ignition coil failure. The vehicle design has close proximity catalytic converters can result in accelerated contamination for the un burned fuel entering the catalytic converters resulting in engine or converter assembly failure

- Douglasville, GA, USA

The auxiliary evaporator blower motor on GMC Acadias emits brush dust that contains copper particles. These copper particles are blown onto the evaporator core of the vehicle which frequently leads to corrosion and creates a refrigerant leak, causing the air conditioning unit to stop working or only blow warm air. The evaporator has been replaced twice on my Acadia and it went out again on July 30, 2018 (potentially sooner, but I noticed the lack of cold air on the 30th). The certified technician that I spoke with shared with me that this is a very common problem with GMC Acadias but General Motors refuses to acknowledge or correct the issue. A simple online search shows many different Acadia owners sharing similar experiences where they have to frequently pay to replace the evaporator once the vehicle is out of warranty. These evaporators should be fine for the life of the car, but there is a clear defect in the manufacturing that is causing the air conditioning unit to fail. While this might not be considered a safety concern or complaint, I have two young children and have great concerns over driving my vehicle in the summer without air conditioning. Please take my concerns seriously and investigate the multitude of complaints online about this specific issue. Https://www.consumeraffairs.com/automotive/GMC-Acadia.html https://forums.edmunds.com/discussion/10057/GMC/Acadia/GMC-Acadia-heating-cooling-problems/P3 https://www.acadiaforum.net/8-GMC-Acadia/8218-C-losing-refrigerant-evaporator.html gmauthority.com/blog/topic/2014-Acadia-rear-evaporator-issues/ https://www.yourmechanic.com/question/my-GMC-Acadia-2013-is-blowing-hot-air-and-the-ac-is-on-by-jennie

- North Aurora, IL, USA

I was driving on the interstate with my son and the rear sun roof exploded. It was a very loud noise and my ear in still hurting from the sound. The sunroof screen was closed, but the glass has not broken apart and fallen yet. It is shattered on the underside in hundreds of pieces. The top shows long cracks all over. There doesn't seem to be a point where something hit it. The crack lines seem random.

- Metairie, LA, USA

This is a problem involving the liftgate of the trunk because I almost got crushed on it as I was trying to load grocery.

- Vacaville, CA, USA

I discovered I had a flat tire so I got the jack from the back of the Acadia removed the spare tire started jacking the car up just as it reached enough clearance to remove the flat tire, I removed put it aside, I turned around to grab the spare, the weight of the car collapsed the jack and the front of the car hit the pavement.

- Livonia, MI, USA

The car has unpredictably and repeatedly gone into a reduced engine power state and subsequent stall on at least 8 occasions necessitating an emergency pull over. The failure occurred 6 times when slowing to turn or approaching a light/stop sign and twice on the highway at speeds in excess of 60 mph. Messages at the time of the issue have varied but consistently indicate engine issue, reduced engine power. Variably we will see messages about stabilization control, traction control being off or needing to be checked. We have avoided accidents on multiple occasions. GM has been unable to identify and correct the issue on repeated visits nor can they guarantee that it won't happen again. Since the car loses engine power and stalls both at highway and slower speeds, it presents an extreme safety hazard not only to occupants of the car but to surrounding vehicles. We refuse to have the car on the road given the enormity of the risk associated with driving it at this point. GM was initially responsive to our concerns at the first visit to the dealership but has not returned three separate calls over the past three weeks. Forums on-line regarding the Acadia and several other models show that many other people have been experiencing this same issue over multiple model years. GM needs to resolve the cause before someone is killed.

- Mendon, MA, USA

First incident: Vehicle engine turned off(stalled)while backing out of parking spot. Car lost all power: Brakes, steering, engine second incident: One week later, same incident: Vehicle engine turned off(stalled): Car lost all power, brakes, steering, engine, this time on highway exit ramp moving approx 35 mph. Very frightening experience. We contacted GMC and opened a case #[xxx] car has been to dealer who kept it for one week and could not duplicate the problem. They had no explanation or solution. Service manager, in fact, informed us that he "could have told us" he found a problem and solved it but that we should appreciate his honesty! in not being able to diagnose? we have no faith in this automobile without a definitive problem and solution.while dealer did supposedly run it through tests, no mention of recall nor of any idea as to why this occurred. On- line reports that a chassis control module could be short circuited by small metal fragments, possibly causing the vehicle to stall. Dealer did not address this nor locate it. This problem was posted by General Motors on October 1 2014, almost two weeks prior to the car going in for analysis. My wife and 16 year old daughter drive this vehicle and I am in fear of an accident or worse. Please help us. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Fairfield, CT, USA