2021 F350 Tremor Starting Issue

[DirtDiggler]

Wanting to see if this has happened to anyone else....Have a 6.7 Lariat with pushbutton Start. Truck will turn over when the start button is pushed and then stops after 1 sec. without starting. Happens very sporadically and with both mine, and my wife's FOB's, so its not a FOB issue. Runs fine, not other issues, and mainly seems to be on a first start or after sitting and cooled down....We live in FL so cold isnt a factor.

Going into the dealership for a check but any ideas?

 

[WaterboyOU812]

Yes! been having similar issue of late with my '20 6.7...get in, push button, nothing, just accessory mode. Push it again, everything shuts down, like I turned it off. 2nd push everything seems to fire up as normal. I leave my truck sit for long periods of time...could this be the battery saver mode kicking in?? Be interested to see what the dealer has to say...

 

[BroncoHooves]

Might be loose electrical connection on transmission bulkhead fitting.