How much should I expect to pay for inspection and replacement. I do not know how many of the Tire Pressure sensors I need to replace. I have a 2007 camry XLE 6-cyl (Never replaced any TPMS). The TPMS light blinks for a few seconds (approx 30 s), then turns solid. I read here that I probably need a new TPMS sensor. I can buy one from Amazon for ~$35.