2021 Yukon LM2 Air Filter Life Disabled

[8mmag]

Push and hold the start button (don't touch the brake pedal) until everything lights up on the dash (about 5 sec). You should have a green light on the start button. That puts the vehicle in run mode with the engine off and you should be able to reset it.

Jay

I'm sorry to report this did not work on my '21 Yukon...
Still stumped, but thanks for all the suggestions so far.

Tom

 

[StephenPT]

Only other thing I can think of (that you can do) is to disconnect the battery terminals. Touch them together if you can, or leave disconnected for ~30min and then reconnect. Might just need a reboot.