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.