What is the appropriate tire pressure for driving on highways?
2 Answers
When driving long distances on highways, the tire pressure should not be too low. It is advisable to increase the tire pressure by approximately 0.2bar based on the lower limit of the standard tire pressure for your vehicle. Tire pressure reset method: First, turn on the ignition, then press and hold the tire pressure monitoring reset button until you hear a "beep" sound before releasing it. The tire pressure monitoring system will then store the current normal tire pressure data, automatically clear the previous data, and finally, the warning light on the dashboard will turn off, completing the tire pressure reset. There are generally three reasons for abnormal tire pressure: Abnormal tire pressure: The system usually alerts when the pressure is below 1.8bar or above 3.0bar. In such cases, tire inspection and pressure adjustment are necessary. Tire pressure monitoring not reset: After inflating the tires, if the tire pressure reset is not performed promptly, the tire pressure monitoring system will still record the previous data, causing the tire pressure monitoring indicator to light up. Simply performing a tire pressure reset will resolve this issue. Damaged tire pressure sensor: The tire pressure sensor, which monitors tire pressure, is directly installed inside the tire and connected to the tire inflation port. If the sensor is damaged during driving, it can also cause the tire pressure warning light to illuminate. For sensor damage issues, the only solution is to replace it with a new component.
When driving on highways, I prioritize the impact of tire pressure on safety. If it's too low, the tire overheats and deforms, risking a blowout; if too high, it reduces grip and increases braking distance. I follow the recommended values on the door frame—usually 32-35 PSI for cold tires—and avoid inflating them right before a highway trip. Friction during driving raises tire pressure by 0.2-0.5 PSI, so checking cold tires before departure is most accurate. Adjust for weather too—lower in summer, higher in winter. Safety first: I use a simple tire gauge before every long trip. If tires are heavily worn or new, visit a professional shop to confirm settings for a smooth journey.
