2021 GMC Yukon w/40k miles began sputtering/jerking at slow acceleration

[Doubeleive]

I'll definitely try checking the fuel pressure. Any recommendations on purchasing the MAF online?

AC Delco Mass Air Flow Sensor 12714453

I wouldn't condemn the maf without further testing, but from what I recall they run around $70? best prices online are probably going to be rockauto or amazon, maybe ebay.
I would recommend oem

 

[Doubeleive]

More Information for GM GENUINE 12714453
GM GENUINE 12714453
$40 on rockauto
for some reason I thought this was a 2020
you should be under factory warranty unless you are over mileage already?

 

[WPBMatrix180]

More Information for GM GENUINE 12714453
GM GENUINE 12714453
$40 on rockauto
for some reason I thought this was a 2020
you should be under factory warranty unless you are over mileage already?

I'm at 40 K miles, so over by 4k miles. Go figure !

 

[Blackcar]

I believe power train 5 year 60000 miles on 21 Yukon.

 

[travo87]

If ya haven't figured it out by now change out your fuel filter and maybe run a injector cleaner in there with a high octane fuel and or something to break up all that crud out the injectors

 

[GMCnewbee]

Could be a fill-up of bad gas. I agree that a fuel filter might be a good idea. Also, put in a can of fuel system water remover. I think it's just alcohol but I forget what it is that breaks down water in gas.

 

[uptown_nyc]

You ever get to the bottom of this? Feeling something similar on my 2021 Tahoe at 47k miles.

 

[viven44]

This should be covered under powertrain warranty. 5 yr. / 60,000 mile

With limited data available on the new powertrains, it is best to let the manufacturer troubleshoot these issues especially in the warranty period, but definitely great to document anything here so others can benefit for years to come.

Hope OP comes back with an update. As of 9/2 OP's thoughts reflect lack of warranty awareness. Hopefully not the case.