2013 Sentra TPMS Issue

I just got a really good deal on a 2013 Nissan Sentra SL that was slightly used (1k miles). After a little closer inspection I am pretty sure that the dealer swapped the alloy SL wheels with the steel S/SV wheels. The TPMS light was on when we bought it and I assumed maybe the tires were just low. Assuming all the sensors are still in place, is this just a trip to the dealer to reset the TPMS?

Yes, again assuming that they did swap the TPMS from the OE set over to the new set.. The relearn on that vehicle can also be done at a tire show with a TPMS scan tool i.e. Bartec.