What does it mean when the car's SET light stays on?

[LailaFitz]

set light indicates that the tire pressure of the car is too low. The tire is one of the most important components of a car, and its main functions are: 1. Support the entire weight of the vehicle and bear the load of the car; 2. Transmit traction and braking torque to ensure the adhesion between the wheels and the road surface; 3. Reduce and absorb the vibration and impact force of the car during driving, prevent car parts from severe vibration and early damage, adapt to the high-speed performance of the vehicle and reduce driving noise, ensuring driving safety, handling stability, comfort, and fuel economy.