Denalis stopping while driving- class action suit?

[Gplan9]

This just happened to us on 9/22/24in our 2022 Yukon Denali. We were driving on an expressway and the car made a ding and then went into neutral. Error message on the screen said something about the car not being able to shift. We were fortunate to be near an exit ramp which was downhill and then coasted to a gas station, which was luckily right there. The car was put in park and we were unable to start it or change gears but the battery worked and we could not stop the display screen from going on and off. We had to call OnStar and had the car towed to a GMC dealership. This was in a different state from where we live. We had to stay in a hotel and rent a car to get home. Its been five days and we have no resolution yet. Fortunately we are under warranty. Let’s keep this going and let each other know what the problem is. From what I’m reading, this is not unheard of, I’ve read several other accounts. I’ve seen two other accounts of this on TikTok. I’m wondering if this could be a class action lawsuit in the making? This is a life threatening problem.

 

[Sean Michael]

Did you get crank with no start when you got to the gas station? I wonder if you have a bad fuel pump control module (FPCM). That is what stranded me, and since then I've seen many other mentions of it. Fortunately the FPCM is a relatively easy fix, but the situation it puts you in is awful, I know from personal experience.

 

[viven44]

Glad everyone is safe. When a fuel pump cuts off, its a scary scenario.... Engine didn't have fuel or it seized !!! Its one of those scenarios. I think Seal Michael is probably correct on the FPCM.

Sorry about the Hotel and rental care expenses... well GM has to bear that (philosophically!). Its a shame we put faith in a new automobile and we have to deal with problems normally encountered in a high mileage vehicle.

 

[OR VietVet]

@Gplan, are you saying "battery worked" because dash lights worked? Did the engine crank over but not start? No engine crank? Two different scenarios.
Welcome to the forum.

 

[wood92]

I had this exact same experience last Saturday while I was on vacation in Baton Rouge. I was doing 55mph, and my '21 Yukon Denali started acting like the gas pedal wasn't working for two or three light taps to maintain speed, and then the car engine just spontaneously turned off. The electrical was still on, so I shifted to neutral and coasted to the shoulder. Once stopped, the engine would turn over for 10 seconds, but it seemed like it wasn't getting any fuel. I tried multiple times, but I could never get it to run. I wound up getting rescued by family and leaving it on the side of the road for a tow truck to eventually pick up (long story).

Thank you so much for posting this story though. Because of you, I had the problem diagnosed before the Firestone shop opened Monday morning and immediately requested they find a fuel pump control module and replace it. Just a few hours later, and wouldn't you know, voila, it ran like new again. I called my local GMC dealer to let them know, and they said they hadn't heard of any issues with fuel pump control modules. The guy on the phone had little to no concern about something like this going out on the vehicle. If you ever hear of a class action suit or anything else in that regard, I'd like to know.