2021 GMC Acadia

I was driving down the road and all the sudden my breaks locked up. Like I had to stand on the break with both feet for it to barely stop. After getting it to the repair shop they said my vacuum pump exploded. My problem is it’s very well taken care of car and absolutely no warning light was on. I had no warning at all just all the sudden wouldn’t stop. Now I’m 7,600 in the hole because of this and very upset my not even 5 year old car is having these problems.

The contact owns a 2021 GMC Acadia. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the dealer where it was diagnosed with a fractured rear cap catalyst converter cap. The contact was informed that the catalyst converter needed to be replaced. The vehicle was not repaired. The contact stated that the original catalyst converter was replaced by the same dealer less than two years ago under warranty. In addition, the contact stated the front catalyst converter was replaced by the same dealer five weeks ago. The manufacturer was made aware of the failure but provided no assistance. The contact was advised to contact the NHTSA Hotline and report the failure. The failure mileage was approximately 86,000.

The contact owns a 2021 GMC Acadia. The contact stated that the door locks failed to lock and unlock while using the key fob or the buttons on the outside or inside the vehicle. The locks failed to operate as needed until after the vehicle was driven. The contact had to manually lock the door; however, after locking the door, the contact was unable to unlockthe vehicle. The contact had to climb through the trunk of the vehicle to enter the vehicle. The contact stated that the failure only occurred while it was raining. The vehicle was taken to the dealer, who was unable to duplicate the failure because it was not raining at the time. The vehicle was not diagnosed or repaired. The manufacturer was informed of the failure and confirmed that the vehicle was not included in GMC Special Coverage: N22378380. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 37,000.

While driving the engine cut out. I wasn't able to get the vehicle off the road and had to put in an acceleration lane until I could get a tow. Other drivers entering the roadway were accelerating and some didn't realize that my road hazard lights were on and almost hit me. The vehicle was given a diagnostic check by a service station and say that the Fuel Pump Power Control Module is not working. After checking the Internet I found a recall for this item on other GMC models but not the Acadia. There was no advance warning for the malfunction.

I have had nothing but issues with this vehicle from the day I purchased it. I should have been more leery of purchasing a vehicle with so few miles on it as a certified vehicle. First issue lift gate wouldn’t work. Had to have sensors replaced twice. Next was the purge valve sensor that has went bad 3 separate times. Then the crankcase vent sensor. Paid a fee for diagnostics, it was not repaired took it back when the engine light came back on, they replaced it without charging but I was advised it’s not covered under warranty. And most recently my check engine light came on yet again today now reading an issue with the engine cooling system. Unfortunately the dealer is so booked out, my only option is to drop it off and hope they can get it in by a cancellation or no show. Seems there are new issues ever 3-6 months with the car.

I was traveling in my 2021 gmc Acadia in which I have had numerous issues with is the almost 4 years I have owned it. The back up camera 2 weeks after purchase it went out in June of 2021. After that The vehicle In October of 2021 I get in the vehicle on rainy day. Infotainment systems reads error with the SD card that Issue progressed I called dealer finally I get service appointment after strike and my vehicle sits at Roger’s Pontiac GMC 2660 Michigan Ave Chicago IL 60616 for 10 hours now I placed thread around the crowl and by knob. Car was not touched I was told it was a internal issue and that the GM Engineers would need to replace the infotainment system They looked at it again In November of 2022 No closer to finding a problem I called Gmc Because by now My Temperature coolant sensor was working then not working car would say reduced parking assist and then if hot Air conditioning wouldn’t work I Called GMC offices filed numerous complaints. They called the service manager no one would take calls nothing would get done. So [XXX]I’m Driving down [XXX] heading east a big Truck flys off of [XXX] slams into side of my SUV Destroys every panel on passengers side of vehicle The Acadia mine with all the curtain air bags in the a pillar in ceiling on the front and back seats on top Side and bottom side not one deploys not even on the A pillar where rear passengers door is ripped off. I was knocked out if anyone was in them 2 seats like my 2 kids that are always with me [XXX] they could have been killed no safety bags deployed? I basically begged for auto to be repaired of electrical issues when only 2000 miles on it with 900 miles on it GMC I called every week for almost 2 years no help now this! I was injured have not much memory of accident. This auto needs be taken off road I deserve like I asked for when new same car just without issues I could have been killed but no one cared. Now look no air bag INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

May 2023 we took the car to the GM dealership for a electronic recall. We reported a rattling noise at that point in time. Whatever repair was done that the car ran w/o any noise for nearly a year. April 2024 the catalytic converter failed at just 61K miles on this vehicle. The mechanic at the same dealership noted a broken mounting bracket and replaced the catalytic converter. October 24 2024 at 76K miles the car started making the same noise. The mechanic at the same dealership noted a loose mounting bracket due to an excessively vibrating catalytic converter, a crack on the cat converter, a leak and sequentially damaged front pipe. They noted they made all of those repairs. They noted they test drove the vehicle and verified the car was repaired. October 26, 2024 after those final repairs the car made a loud revving noise and emitted a smell of sulfur. The next day the car died on the road while driving. Every system of he vehicle shut down and I narrowly avoided getting hit from behind. On 11/2/24 We had the car towed to the dealership again. The mechanic noted the recent replacement on the cat converter & oil had leaked intermixing. That caused the motor to seize and the car to stop working while I was on the road driving. I can't imagine what could've happened to me had it stop on the highway at 65mph.