It typically indicates an EHPS (power steer pump) failure. Is it active or stored? You mentioned no other codes, but also didn't say anything about your power steering not working. Did you recently disconnect the battery or change the battery? Sometimes codes like this may get triggered in the event of a dead battery (which causes the electronics and monitoring systems to go crazy).
Also, mentioning it to a dealer isn't going to throw any red flags or have someone asking you why you're checking codes. Pulling codes isn't hard to do these days.
That’s what I found upon my research, yet I’ve had no issues with power steering.. there are TSBs our in regards to power steering, but no issues I’ve encountered.
Have not messed with battery. It has gotten close to dead a while back at 11.7 volts, but never fully dead since I’ve owned the truck.
I’d assume if I mentioned it to the dealer and if the TSB relates, then they’d do the warranty work because of the rate they get for it.
Wasn’t sure if anyone had any issues who had this code or if it’s something serious or not.