If light stays on, a tire is getting low on air or your air pressure sensor has malfunctioned. It’s safe to drive your vehicle home or to a service shop. Check the tire pressure and repair a bad tire soon.
Usual problems: flat tire, tire is low on air, tire pressure light not reset, bad air pressure sensor
TPMS is an electronic system designed to monitor the air pressure in the pneumatic tires. The systems report real-time tire pressure information to the driver via a gauge or low-pressure warning light. It is designed to help improve vehicle safety and fuel economy.