2020 2500 gas cap light

[Randy6666]

Got the gas cap loose light today on start up and check engine light.
Have unscrewed and retighten several times and till have lights.
Any help would be appreciated
It’s a 6.4 limited
Thanks

 

[GeometryFletch]

been down this road..try a new gas cap if the above didn't work..it's cheaper than all your time at the dealership...IF it works...if not then take it to dealer if covered. my two cents