What happens to tire pressure as tires become hot?

Tire pressure increases as tires become hot due to the physical properties of gases. When tires roll, they flex and generate heat, which causes the air inside them to expand. According to the ideal gas law, when the temperature of a gas rises, its pressure also rises if the volume of the gas remains constant. Since the volume of the tire is essentially fixed, the increase in temperature as a result of driving leads to an increase in tire pressure. Maintaining proper tire pressure is crucial for safe driving, as overinflated tires can lead to a reduction in traction and increased wear. Regularly checking and adjusting your tire pressure, especially after long drives or during extreme temperature changes, is important for vehicle safety and performance.