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Low Tire Pressure Light but Tires Are Fine Issue: How To Fix

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.

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

Some low tire pressure light but tires are fine problems
Know about low tire pressure light but tires are fine issues. Source: Youtube

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.

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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.

Fixing low tire pressure light but tires are fine problems
Solving Problems of low tire pressure light but tires are fine. Source: Youtube

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.

  1. Tony says

    My issue was the spare tire also had a TPMS sensor (a full sized spare on a 2009 Avalon), so I thought all the tires were ok, but there was a 5th tire to check

  2. Shawn Craig says

    I have a 2014 CX-5. My tire pressure monitoring light is always on. When it gets cold out it goes off for a while but it will come back on again when the car warms up. This happens even when the car doesn’t move so it’s not the pressure coming up in the tires due to the tires warming up. It has been going on for a long time and its not related to tire pressure. Could it be a a bad ABS sensor? The tires have no monitoring sensors of their own.

  3. Nemo says

    I learned absolutely nothing from five minutes of this video, which was mostly about this guy listening to himself talk about nothing at all useful. That is what the low tire pressure light is for, Ace. It tells us to check the tire pressure and add air if necessary!

    It baffles me why people post these U-Tube “solutions”, talk for minutes, and say nothing about solving the problem until the very end, if at all. And like this guy, all he really said in the end was, that there wasn’t a problem because it fixed itself. WOW! Smart Fellow!

    The answer we look for here was the situation when the light is on and the tires do NOT need air!

  4. Johnathan Sparks says

    I have a 2007 Tundra…I have replace all TPMS,,replaced the ECM for TPMS and still after a few hours the light comes on..I am so frustrated with this that I am about to just sell this truck. I had a tire place sink 400$ in TPMS Toyota TPMS, and 200$ in labor..and bought a salvage ECM…it worked for a while then came back on. Now they want another 650$ for a brand new ECM from Toyota…it is a 12 year old truck and putting a down payment into a 12 year old truck is insane. Anyone else have this issue.

  5. Austin says

    I have a 2008 BMW x3, and for 2 days now its been showing a low pressure light. I checked the tires, they are all fine. The temperature hasn’t also changed that much.

  6. jim says

    Ha Ha–no reset button in my subaru outback glove box !

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