How to Deal with Normal Air Pressure Alarm?
2 Answers
It may be caused by a punctured tire, which triggers the tire pressure warning light. This situation usually involves a very slow air leak, and you can use a tire pressure gauge to measure it. When the air pressure drops below 1.8, you should immediately replace it with the spare tire and then drive to the nearest repair shop for fixing.
I've encountered this issue multiple times - that tire pressure warning light on the dashboard keeps coming on for no reason, yet the tires feel rock hard. Here's the standard procedure: First, don't panic. Pull over safely and manually check each tire's pressure (including the spare) against the recommended values on the door jamb sticker. If pressures are correct, holding the reset button near the steering wheel for 5 seconds usually clears most warnings. Persistent alerts often indicate sensor failure - my old car's false alarms were caused by a depleted coin battery in the front right sensor, fixed with a $3 replacement. Sudden temperature changes frequently trigger false alarms too, as thermal expansion/contraction fools the system. After car washes, always dry the wheel hubs thoroughly as pooled water can interfere with signals. Get in the habit of monthly manual gauge checks - it prevents false alerts and improves fuel economy. Sensors degrade with age; vehicles over 5 years should get regular diagnostics.
