Have a weird thing I have noticed with my 22 F150 Lariat. When I start my truck, the 2H button is illuminated. After a few minutes of driving it goes off and I have no lights on the 4x4 buttons. If I switch from 2H to 4H or 4A, the dash indicates that everything is working and I can go into those 4x4 modes. I haven't tried 4L. However, when I change from 2H to 4A or 4H, the buttons do not illuminate either. There are no lights on the 4x4 buttons at all, but I do get the 4H and 4A icon on the dash, so I'm fairly certain my 4x4 system is actually working properly.

It's just the button light that goes off after a few minutes of driving. Changing to 4H or 4A does not illuminate those lights either. Once the vehicle is turned off and back on, the 4x4 button light will work again for a few minutes before going out.

I'm 99.99% sure that is not normal. I will bring this up to the dealer during my first oil change (truck is only 6 weeks old), but was just curious if anyone has the same issue on their truck or if this may be indicative of a bigger problem?

Thx
Ryan.