Have you ever experienced the low-pressure light turn on even when the tires are fine? If you have, it’s better you know what exactly causes low tire pressure light but tires are fine and the ways to fix it.
However, before delving into its reasons and solutions, let’s first try to understand the technology measuring the tires pressure, inside the car.
TPMS – Equipment to Measure Tire Pressure
TPMS here stands for Tire Pressure Monitoring System, which is an electronic box fitted on the rim of the tire. Its main function is to generate the tire pressure information for the car’s computer system.
Available in two different technology forms, the TPMS either can determine the pressure directly or can calculate it indirectly by using the information of tire rotations.
For your safety on the road, it’s necessary to equip the best tire pressure monitoring system for real-time report about your pressure of all tires of your car.
Reasons Behind Low Tire Pressure Light but Tires are fine
Many times when the tires aren’t flat or underinflated, the low-pressure light on the dashboard turns on. To know, why this happens, let’s read the reasons mentioned ahead.
1. Measuring Tool Not Functioning
While every time you start the car and the pressure light turns on and stays lighted, this means the TPMS is not functioning properly. However, before consulting the mechanic regarding this issue, do check the tire pressure. If the tire pressure is fine, the TPMS needs to be repaired.
2. Extreme Cold Weather
Usually, the car tire pressure decreases during the cold weather, even when it’s properly inflated. This is because, in cold, the matter compresses whereas in the heat it expands. As a result, this turns on the low tire pressure light but tires are fine, for a while but disappear once the tires are warmed. However, if it doesn’t turn off, measure the pressure of tires.
3. Recent Tire Replacement
As discussed earlier, the TPMS is located on the rim of the tire. Thus, there are chances that this electronic box gets damage during the tire change process. So, whenever you are going for a car’s tire change, do check the pressure light there and then. Since this would avoid the hassle of coming back to the automotive shop later.
Systematic Procedure: Fixing the Low Tire Pressure Light Issue
Now, when we’re well informed about the causes of low tire pressure light even when the tires are fine, let’s tackle this problem.
Locate the Reset Button
Positioned inside the glove box (a compartment inside the dashboard), you can easily find it in front of the passenger’s seat. In case, you can’t locate it, find the button with the “SET” marked on it or else check the car’s manual.
Note: The position of this button may vary according to the brand and the car’s model.
Press the Reset Button
Next step in the process is to press the located button for three seconds. Once the light blinks for three times on the dashboard, this means the TPMS is reset. After this, turn off the engine and again start it after five seconds (from the time, light blinks).
This would resolve the issue. But, it is important here to note that the process of resetting the TPMS may vary in accordance with the car model. Therefore, do consult the vehicle’s manual before heading for it.
However, if the above solution doesn’t work out for you or you are unable to understand the issue of low tire pressure light but tires are fine, take your car to the near mechanic store. As concerning an expert can help you easily resolve this issue and also, know more about its maintenance tips.