TPMS Light ON Means and What You Need to Do

TPMS Light ON Means and What You Need to Do – The main purpose of the TPMS (Tire Pressure Monitoring System) is to warn you when the tire pressure is too low or too high. Thus, it can create unsafe driving conditions. If the light is on, it means your tires may be under-inflated or over-inflated. Doing so can cause undue tire wear and possible tire damage. It is very important to understand the importance of proper tire inflation. And how can TPMS help you avoid dangerous situations?

Read more: How does Tire Pressure Monitoring System (TPMS) Work?

TPMS Light ON Means
The TPMS Indicator on your car. Image source: bridgestonetire

Overinflation and underinflation can cause premature tread wear and possibly severe tire damage. Excessive inflation can result in reduced traction, premature wear, and the inability to absorb road impacts. A flat tire will show premature wear in the center of the tread. On the other hand, underinflation will lead to sluggish tire response, reduced fuel economy, excessive heat build-up, and tire overload. Underinflated tires will show premature wear on both sides of the tread edge or “shoulder”.

If you are learning about tire pressure sensors for the first time, finding the TPMS indicator on your dashboard is easy. It is a horseshoe-shaped light with an exclamation mark in the center.

TPMS Light ON Means and What You Need to Do

Do you know what to do when the low tire pressure TPMS symbol lights up? The first thing you should do is check the tire pressure manually with a gauge and add air. Do not forget that the tire pressure must be in accordance with the vehicle manufacturer’s specifications. (You’ll find the correct pressure on the driver’s door frame or in the owner’s manual, not on the sidewall – that’s the maximum tire pressure.) You need to remember, that your TPMS does not replace routine tire pressure maintenance. This is a tool that can help alert you when pressure is low, but tires may drop below proper inflation long before the TPMS warning light comes on. The TPMS light comes on when the tire pressure is too low or too high.

TPMS Light ON Means
A flat tire will make the TPMS indicator light turn on immediately.

TPMS Lights On While Driving

When the TPMS light is on – and remains on – at least one of your tires is at a low-pressure level. Check the pressure of all tires with a gauge and determine the cause of the loss of pressure and add air or tire service as appropriate. After filling the tires, usually, the light will stay on until the car is moving for 5-10 minutes for adjustment.

If it’s still the same, you need to reset the tire pressure sensor.

Read More: How to Reset Tire Pressure Sensor

TPMS Lights On and Off

As tire pressure approaches the level that triggers the warning, fluctuating temperatures can cause your TPMS light to turn on and off. This usually occurs when the pressure drops at night due to the drop in ambient temperature causing the lights to come on; The lights may turn off when the pressure increases during the day due to the increase in ambient temperature and/or heat resulting from us driving the vehicle. Use the gauge to check the pressure of all tires and add air to any tires that are low.

Read More: Effect of Weather on Tire Pressure Monitoring System (TPMS)

TPMS Lamp Flashes and Keeps On

If the light flashes for approximately 60 to 90 seconds every time you start the car and then stays on, this means that the TPMS is not working properly and you should take it to an automotive service center. Until conditions return to normal, the TPMS is faulty and cannot warn you of low tire pressure. Check the air pressure of all tires with a gauge and add air to the tires as needed.

Does TPMS Replace Regular Tire Pressure?

No! Understanding what the TPMS warning light means and what we should do when it comes on is an important part of a driver’s responsibility. But it should not be a substitute for regular tire pressure checks. Why? Depending on the situation, a TPMS may have limitations such as:

  • Car manufacturers allow setting the TPMS warning light to come on under the tire pressure the tire should need to carry the load in the vehicle.
  • Sensors may not transmit accurate tire pressure data to the onboard computer.
  • The system may not be able to accurately determine if a tire is too low if another tire is losing pressure at the same rate.

Therefore, even with TPMS, you should check tire pressure once a month, and before long trips or when carrying extra loads.

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