2011 BMW 3 Series 328i xDrive

2011 328i xDrive, it is a great car. Recently had valve cover seals changed as well as an oil-change and brake fluid done. There are two minor dents on the driver side from the previous owner. There are two errors currently with the car, 1st one being the TPMS (tire pressure monitor) which started about a week ago. Nothing is wrong the tires themselves just the sensors for air pressure. The 2nd error is the passenger headlight, I'm not sure why the error is there because the light works and