My "transmission shift indicator" and the "driver information center" did not light up when I went and started the truck. The truck started fine, went into gear and drove out of the garage.When I put it back into park I heard a slight clunk behind the dash area (sounded like a relay clicking), and suddenly everything worked correctly and has since.This has happened twice, both times after the truck has been parked in the garage for several weeks. No codes stored. Any ideas?

It didnt read something like shift inhibit or something like that?

it read nothing, it was blank as if the key had never been turned on

Would have to scan it for codes at this point