Why does the tire pressure monitoring LCD screen display incompletely when exposed to sunlight?
2 Answers
Tire pressure monitoring LCD screens may temporarily fail due to overheating of electronic components caused by sun exposure. The display will return to normal once the temperature decreases. What is the standard tire pressure: According to the international GBT2978-2008 standard, the recommended tire pressures for different types of tires are as follows: Standard tires: 2.4-2.5bar; Reinforced tires: 2.8-2.9bar; Maximum pressure: should not exceed 3.5bar. Other related questions: Is a tire pressure of 2.0bar normal? No. According to the international GBT2978-2008 standard, the standard tire pressure for standard tires is 2.4-2.5bar. A pressure of 2.0bar is below the minimum recommended value, so it is not normal. What is the normal tire pressure in winter? – In winter, the tire pressure should be based on the standard tire pressure and can be increased by approximately 0.2bar. What is the normal tire pressure in summer? Generally, the lower limit of the standard tire pressure is sufficient. For example, the lower limit for standard tires is 2.4bar. If the car is often parked outdoors, the tire pressure can be slightly lower than the standard by about 0.1bar to avoid tire blowouts due to high temperatures.
I've encountered a similar issue where the small tire monitoring screen becomes partially unreadable after prolonged exposure to sunlight, primarily due to high temperatures. The materials used in LCD screens are prone to deformation or aging under direct sunlight, leading to blurred images or missing segments. Just like how a smartphone screen left in a car for too long can develop display issues, it's all because heat accelerates aging. Additionally, heat can interfere with internal electronic components, such as sensors potentially overheating and failing, poor contact at circuit connection points, or accumulated dust reducing conductivity. In my own car, this happened when parked outdoors during summer, but later I tried using a sunshade to cover the display area when parking, which significantly improved the situation. Preventive measures are simple: avoid prolonged exposure to direct sunlight, especially during midday heat, by parking in shaded areas or using protective covers. If the problem persists, it's best to have it checked at a 4S shop to prevent affecting the tire pressure monitoring function and compromising driving safety. Regular dust cleaning can also extend the screen's lifespan, but avoid disassembling it yourself as it may damage other components. In summary, such issues are common in hot regions, and timely maintenance is key.
