Why does the car dashboard show abnormal tire pressure?
2 Answers
The reasons why the car dashboard shows abnormal tire pressure are: 1. The tire pressure is not within the normal range; 2. The tire is leaking or punctured, causing insufficient air pressure; 3. The tire pressure is too high. Tire pressure refers to the air pressure inside the tire. The effects of excessive tire pressure are: 1. It affects the braking performance and driving comfort of the car; 2. Excessive tire pressure increases the friction between the tire and the ground, reducing tire adhesion; 3. It accelerates the wear of the central tread pattern, shortening the tire's service life. The effects of insufficient tire pressure are: 1. It accelerates rubber aging and increases tire wear; 2. It causes the tire body to expand, making it prone to cracks on both the inner and outer sides; 3. It increases the contact area between the tire and the ground, causing the tire to overheat.
I think the tire pressure warning light is something to take seriously! Last week my own car had this issue, so I immediately pulled over to check. The most common cause is a slow leak from a nail puncture – you can spot bubbles by applying soapy water to the tire. The cold tire pressure for all four wheels must be consistent (refer to the fuel cap label for specifications like front 2.3, rear 2.5 bar). I even inflated my spare tire to 3.0 bar. A sudden temperature drop can also trigger false alarms – for example, a drop from 30°C to 10°C can reduce tire pressure by about 0.3 bar. If the warning light stays on after a highway drive, it’s likely the tire pressure sensor battery is nearly depleted. Remember, don’t push your luck – visiting a tire repair shop for inspection is the safest bet.
