NHTSA Complaint #11617415 — 2021 TOYOTA C-HR

On 09/12/2024 Ran over a small sharp object in the road and popped the rear drivers side tire and the tire sensor light came on. Two days later on 09/14/2024 we took the car to the dealership and had them change all four tires. We were told the mechanic found a broken off sensor in one of the tires. It was not in the blown out tire, it was in a tire that had no damage to the tire or rim. I talked to the service manager about how the sensor could have broken off the stem in side the tire. He said the mechanic was sure he didn't break the sensor off the stem when changing the tire, that it happens, the sensor can break off the stem and he has seen this before. I asked if they had saved the defected part and he said that he didn't have it and the mechanic had probably thrown it out in the trash. I asked if the manufacturer knows that sensors are just breaking off in side tires. He said he didn't see any recalls for sensors at this time. I would think the manufacturer would want to see the defected TPMS to determine why the TPMS broke off the stem and if a recall is necessary. At this point I'm feeling uneasy about having three other original TPMS's that can break off at any time and having an unbalanced tire situation. I would like to know if this is a safety issue, having a TPMS break off and leaving a tire unbalanced, especially in a front tire when going up to 85 miles an hour on some roads in this country?