The procedure allows a vehicle’s onboard computer to learn and store the correct pressure values for the tires after they have been inflated or rotated. This is important because the Tire Pressure Monitoring System (TPMS) relies on these stored values to accurately detect when a tire is significantly underinflated. An example would be performing this after inflating all tires on a vehicle to the manufacturer’s recommended pressure.
Proper execution of this process ensures the TPMS functions as intended, improving vehicle safety and fuel efficiency. Historically, the TPMS was mandated to improve safety by alerting drivers to dangerous low tire pressure conditions, preventing accidents caused by tire failure. Maintaining accurate readings from the TPMS is a crucial aspect of vehicle maintenance.