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My 2015 suburban would indicate when it switched from 8 to 4 cylinders. Don't see any indicators on the 2021 Yukon XL Denali. Anybody know if the 6.2L uses it and if it shows when in use?
 

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My 2015 suburban would indicate when it switched from 8 to 4 cylinders. Don't see any indicators on the 2021 Yukon XL Denali. Anybody know if the 6.2L uses it and if it shows when in use?
Yes. That or DFM. I get the two mixed up sometimes. But does it show it? Im not sire. Don’t think so.
 

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It does, but I think they got rid of the V4/V8 state indicator on the dash screen. I can hear mine pretty prominently switch back and forth between modes. There is also an exhaust flapper valve which is another indicator of AFM or cylinder deactivation.
 
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