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Why does the tire pressure still show after the tire is repaired?

2 Answers

DiNadia

07/25/25 1:59am

The reason why the tire pressure monitoring light remains on after the tire is repaired: The tire pressure monitoring light may still be on after inflating the tire, possibly due to a puncture that triggered the light, requiring tire repair; The tire pressure monitoring light is on due to a puncture. This situation usually involves very slow air leakage, making it difficult to immediately identify which tire is affected. In this case, you can use a tire pressure gauge to measure the pressure: 2.3 bar for the front tires and 2.5 bar for the rear tires. If the pressure is low, inflate the tire and then observe the tire pressure warning light. If it lights up again after a few days, the tire may need to be removed for inspection; At 4S shops, maintenance personnel typically adjust the front tire pressure to 2.3 bar and the rear tire pressure to 2.4 bar, then reset the tire pressure warning light. They may ask you to drive for 3 or 4 days to observe. If the warning light does not come on again, there is no problem. If it lights up again, there may be a puncture, and you should return to the 4S shop for further inspection. Normal tire pressure range: According to the international GBT2978-2008 standard, the recommended tire pressures are as follows: Standard tires: 2.4-2.5 bar; Reinforced tires: 2.8-2.9 bar; Maximum pressure: should not exceed 3.5 bar.

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LucasLynn

08/10/25 4:21pm

Last time I had a tire repaired, I encountered the same situation and specifically consulted a familiar mechanic. Nowadays, many cars come with tire pressure monitoring systems, and after tire repairs, the sensors might not update the data promptly, just like a delay in a mobile app. Some models require manually resetting the system; look for the tire calibration option in the steering wheel settings menu. Also, check if the valve stem is properly installed—that time, the technician forgot to tighten the sensor bracket. If it still doesn’t work, drive about five or six kilometers and check again; the data becomes more accurate once the tire warms up. However, be cautious about potential slow leaks—it’s best to keep a simple tire pressure gauge handy to compare readings.

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