Each tire in your car is equipped with a TPMS sensor, considering that your car was manufactured after September 2007 and onwards. This sensor senses pressure shortage in your tire, and transmits that data to the car’s computer. Once it does that, a rounded exclamation mark becomes visible on your car’s screen. This is a sign that your car’s tire pressure is very low and you have to inflate them urgently. However, sometimes this does not cause the light to turn off. Usually, this is because car owners will ignore the air pressure of the tires.
Spare Tire Pressure Shortage
Not every spare tire has TPMS sensor. However, cannot tell which have them or do not have them. This is the most common reason people end up spending countless dollars at a dealer. People spend so much trying to reset their tire pressure light, when all they had to do was simply adjust the air pressure of their spare tire.
Therefore, make sure to adjust the air pressure of your spare before you try other means to fix the TPMS problem. Just remember that your spare tire will always have a different pressure than your regular tires. Before adjusting the tire pressure through the valve stem, take a look at the car’s manual for the company recommended pressure limit of the spare.
Overall, this is the most common reason why people struggle with getting their tire light to shut off. The mystery is in your spare tire. This is why you need to take a few minutes to get it adjusted. Once all your tires have the correct pressure inflated, you need to drive around for five to ten minutes.
Once you do this, you should notice the light to disappear on its own. This is how the system is designed, but it you tire pressure light still does not go out; you can try one last thing.
Some cars come equipped with a tire pressure reset switch. This switch can help initialize the system and can solve some problems as well. However, the issue here is that the tire pressure is set wrong, including your spare, then this will not solve the issue at all. If your light is still on regardless of all your efforts, you may have to go to a technician.
Like all components in your car, sensors can fail if you use them past their lifespan. This is usually when your car hits the five year mark. Moreover, they can also run out of battery. In this instance, seeking the expertise of a professional technician can play greatly in your favor. They possess the knowledge and skills to carry out a thorough inspection, and replace the sensors if necessary.
TPMS sensors have a lifespan of about 10 years and many people have them for much longer. Your system will therefore generally work fine. It comes down to setting the right pressure at all times. This is why you need to stay on top of the pressure to keep the light off, and also to be safe on the road.