Reasons Your Tire Pressure Light is Illuminated by Accident
There are often people in Portland, OR who have talked about their tire pressure light suddenly becoming illuminated even though they know that their tires are fine. Sometimes this really is a situation where a puncture has caused a rather sudden leak. There is also the chance that the sensor has been damaged or is giving a false reading.

One of the reasons this can occur is because there has been a rather sudden shift in the temperature.