I needed to fill my 2020 Suburban from a five gallon jerry can while in the wilds of Montana. The manual simply says to "locate" the capless filler funnel, but then mysteriously doesn't say where that would be. Luckily my buddy had an adaptor. Does anyone know the answer to this mystery? I can't find anything on google or the forums, and the manual is worthless on this question. Thanks!

 

It may be in with the jack and lug wrench. My old '17 Lincoln with the capless filler had it in with the jack.

 

https://www.google.com/search?q=Capl..._AUoAXoECAEQAQ