Assuming he didn't mix up the left and right tires when he re-mounted them, my experience was that 1 bad sensor would prevent you from getting a reading on any of the tires.Acquaintance bought an '08 QP and asked if I would post this question. He purchased winter tires and rims but didn't install the TPSM from his summer wheels. With warmer weather he put the summer wheels with TPSM back on, but despite re-calibrating, doesn't get a pressure reading! Any tricks or known issues?
If it is an '08 the dealer should be able to sort it out under warranty. They should have a handheld device which will tell them if a sensor is bad and which one it is.