How to let out tire pressure

The Easy Way to Let Air Out of your Car Tires - Expert Maintenance and Buying tips

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by Carusedjp

Last Updated on 9月 23, 2022 by Carusedjp

Many car owners think that when they over inflate their tires, they can expect better fuel efficiency and more responsive handling. Even those who buy used trucks for sale that over inflating their tires would improve the condition of their vehicle. However, the truth is that over inflated tires can be dangerous.

If you want the best fuel efficiency and handling possible for your vehicle, then it would be advisable to follow the manufacturer-recommended tire pressure level. Your manual will tell you what the optimum tire pressure for your car is. Keep in mind that these numbers were determined through a series of tests and studies for each car model, with consideration to the following factors:

  • Driving comfort
  • Tread life and tire wear
  • Fuel efficiency
  • Handling

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Why it is not Recommended to Over inflate your Tires

When you exceed the manufacturer-recommended pressure levels, your tires will wear out sooner than expected. It is worth noting that tires tend to round out on the tread section when they are over inflated. Consequently, the center wears out at a faster rate than the outer edges. It is possible that your tires will only reach half their actual lifespan.

Aside from that, over inflating your tires can also cause traction loss. Even when you drive on regular roads and conditions, over inflated tires can cause your vehicle to lose traction. This would lead to accidents. This problem becomes especially evident during the winter season. Your rides can become harsher as well. When tires are over inflated, they tend to give a bumpier rider. Needless to say, you will feel every dip in the road.

How to Check your Tire Pressure

It is recommended for every driver to own a digital tire gauge. This is one of the items you can keep in the glove compartment. You can also keep a notebook where you can write down the tire pressure and the fuel economy. Here are the steps in checking your tire pressure:

  1. Check the recommended pressure level. You can find the information in the manual or the doorjamb on the driver’s side.
  2. Make sure that the tires are already cooled down before you check the tire pressure.
  3. Remove the valve cap and keep it in a safe place where you won’t lose it.
  4. Get the tire gauge and press it onto the valve stem. You might hear a slight hiss when you do this and again as you release the gauge. Keep it pressed onto the valve stem for a second or two until you get an accurate reading.
  5. Attach the valve stem cap by rotating it clockwise.

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How to Let Air Out of your Tires

As we’ve mentioned, you will find the manufacturer-recommended pressure level on the tire’s sidewall. Here’s how to let air out of over inflated tires:

  1. Remove the cap from the stem by rotating it counterclockwise. Inside the center of the stem, you will find a metal pin.
  2. Get a flat-head screwdriver and place its top over the top of the metal pin, then press it inward. The tire will begin to release air through the valve stem.
  3. Remove the screwdriver, then take your gauge to check the tire pressure.
  4. Repeat the steps until you get the ideal tire pressure. Make sure you attach the cap back to the valve stem.

Some Tips in Maintaining the Right Tire Pressure

    • Most types of tire pressure gauges can be bought from auto parts stores.
    • If you want to release air from your tires to get your vehicle unstuck from sand or mud, take out about half the air in the tires.

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    How to Let Air Out of a Tire?

    Written by Steven Schiller

    Fact checked by Henry Speciale

    Overinflating your tire results in tread wear, a bouncy ride, and the risk of a tire blowout. That’s why we need to adhere to the required psi for our type of tires.

    In many cases, we also need to deflate our tires quickly to repair or move the vehicle. Therefore, it is important to know how to let air out of a tire.

    Read the detailed guide below

    Table of Contents

    • How to Let the Air Out of a Tire
      • 1. With screwdriver or needle-nose pliers
      • 2. With a tire deflator
      • 3. Without tool
    • Other Tools You Need to Reduce Tire Pressure Properly
      • 1. Tire Pressure Gauge
      • 2. Lever or Hydraulic jack
    • Should All Four Tires Have the Same PSI?
    • Does Checking Tire Pressure Let Air Out?
    • Should You Let Air Out of Hot Tires?
    • Conclusion

    How to Let the Air Out of a Tire

    1. With screwdriver or needle-nose pliers

    There are two ways to remove air from a tire using a screwdriver or needle-nose pliers.

    • For valves without a cap

    If you want to let air out of tire fast, unscrew the valve or metal pin. Then, please put it back once you reach the ideal tire pressure.

    Don’t forget to reattach the cap because it protects the valve from dirt.

    • For valves with a cap

    You need to detach the cap first to find the metal pin.

    Then, use a flathead screwdriver or needle-nose pliers to press the tip of the metal pin inward to release air from tire.

    The air shoots out of the valve as long as you apply pressure on the pin. It stops the moment you lift the screwdriver.

    Therefore, stop pressing the pin when you reach the ideal tire pressure.

    2. With a tire deflator

    A tire deflator is a brass plated device that lets you remove air from a tire more conveniently.

    • Set it ahead of time to your recommended PSI and grab it when you need it.
    • Attach it to the valve. Loosen or tighten it according to the tire pressure needed and wait for the air sound to stop.

    You can configure four tire deflators to your tire’s ideal PSI and simultaneously take the air out of all your car or truck tires.

    Tire deflators are ideal if you have always been a victim of letting air out of tires prank. These automatic devices will save you time checking tire pressure and deflating your tire as needed.

    3. Without tool

    To remove air from tire, it is necessary to identify the type of valve used in the vehicle.

    The valve stem is a small cylindrical tube controlling the tire’s airflow. It is located in between the spokes of the tire. It protrudes on the tire for about 1-2 inches.

    Some valves do not need tools to take air out of tire.

    You can remove the cap from the valve and let it release excess air on its own. You can hear a hissing sound when it starts.

    Other Tools You Need to Reduce Tire Pressure Properly

    Deflating a tire is possible even without screwdriver. However, using the following tools will ensure you reduce tire pressure properly and safely.

    1. Tire Pressure Gauge

    A Tire pressure gauge is a tire pressure reading device. Please attach it to the valve before and after deflating a tire to ensure the required pressure range.

    For instance, if you are stuck on sand or mud, you can get out of it without a tool by releasing about half the air in the tires.

    • It is best to check the pressure with tire gauge if you have it, and the recommended level is 15 psi (pound per square inch).
    • For tire maintenance purposes, checking the tire pressure monthly is advised. The recommended tire pressure ranges from 32 to 35 psi.

    However, it is safest to check the PSI recommendation of the vehicle manufacturer because the front and back tires have different PSI requirements.

    2. Lever or Hydraulic jack

    A lever or hydraulic jack is a mechanical device used to lift the vehicle while deflating all tires. Look for the jack points of the car to mount it. They are located under your vehicle’s chassis, near the front and back tires.

    With machine like a jack stand, the car or truck is safe while you let air out of car tire. Jack stands can support the weight of the vehicle while being lifted by hydraulic jacks.

    Should All Four Tires Have the Same PSI?

    All tires must have the recommended PSI by the car manufacturer regardless of tire brand. The front and back tires have different ideal PSI because of weight while driving.

    The PSI recommendation can be found on the sticker inside the driver’s door. If not, check the vehicle’s manual.

    If possible, write down the psi of each car tire so you won’t get confused.

    Does Checking Tire Pressure Let Air Out?

    Reading the tire pressure with a tire gauge does not let the air out. Instead, the tire pressure gauge has a small knob or plunger at the back part of it to inflate it.

    Should You Let Air Out of Hot Tires?

    Letting air out of hot tires is unsafe. When tires are inflated by heat, and you release the extra hot pressure, it may cause the tire to blow or catch fire. In this connection, it is advised to stop driving when the tires are too hot to touch and wait for them to cool down overnight or park for at least two hours at gas station.


    Knowing how to let air out of a tire with or without tools is a good skill that drivers should not overlook because it can guarantee safe travel and longer service life for tires.

    It would be great to invest in a tire pressure gauge to check your tire pressure regularly anywhere.

    If you want to know more about the causes of tire overinflation, don’t hesitate to ask questions.

    Categories FAQs

    A Few Words From the Author

    I'm Henry, the content writer for PPMC Transport. We build our site entirely on experience and extensive market and customer research. My goal is to create a trusted platform where people can go to determine what is best for their vehicles in terms of safety and convenience. Keep an eye out for our useful guide!

    - Speciale Henry

    How to reset a tire pressure error: a few easy ways

    home > Motorists > How to reset tire pressure error




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    1. Why you need a tire pressure sensor
    2. What are the reasons for triggering the sensor
    3. How can I reset the tire pressure sensor error
    4. How to adjust tire pressure sensors

    When the tires are optimally inflated, the low tire pressure indicator (TPMS) does not light up on the vehicle's dashboard. However, in some cases, it lights up even if the pressure is normal. This can't help but be annoying, especially when the tires are inflated normally. In our article today, we will figure out how to reset a tire pressure error.

    Why do you need a tire pressure sensor

    American and European scientists conducted a study, during which it was found that most drivers do not check whether the wheels are properly inflated before getting behind the wheel of a car. Only 40% of car owners perform such a check - and even then only once every 12 months. This is the reason for a large number of accidents.

    The TPMS (Tyre pressure monitoring system) system is designed to monitor tire pressure, as well as warn of a malfunction. If the tires are under-inflated or over-inflated, an error will be displayed on the remote control or an audible signal will appear.

    What is dangerous too high or, conversely, low pressure? The risk of an accident increases, the car begins to consume more fuel, in addition, the rubber wears out faster.

    Photo: Shutterstock

    The above devices operate on the same principle. Let's figure out how information about what tire pressure gets to the control panel.

    • Each wheel is equipped with a controller. It records tire pressure data.
    • Information is transmitted from the sensor to the transceiver with a frequency of 2-3 seconds . The controller transmits data using Bluetooth.
    • The program analyzes the received data, which should correspond to normal values ​​ . Otherwise, when the tires should be lowered a little, the program sends a signal to the car owner. Exactly according to the same principle, a signal is transmitted if the rubber needs to be pumped up.
    • Depending on the device, the error signals are sound, as well as light .
    • The driver can set the operating parameter limit himself . As a standard, the automaker makes it possible to adjust the device from 1.7–3. 2 bar.
    • On some car models, the TPMS system sends data to your phone.

    Consider how pressure is calculated by measuring instruments. Typically, the sensor performs a comparison of the angular rotation of the wheel. Knowing the value of this parameter, you can calculate the distance that the wheel will travel in one rotation.

    Obviously, if the tires are under-inflated or over-inflated, then the outer diameter of the wheel will be different. Visually, a person cannot determine this change. But the sensor notices even such changes. The system fixes non-compliance with the required parameters.

    Causes of tire pressure sensor activation

    The sensor will still respond, despite the fact that the wheel circumference has changed quite a bit. In this situation, it is necessary to find out what mechanical reason led to this. Only in this way can you eliminate the misinterpretation of the signals transmitted by the system. This can happen because:

    • tire under-inflated;
    • you have installed a different wheel whose shape, dimensions and tread are different;
    • a “spare wheel” was supplied, in terms of parameters it also differs from other wheels;
    • there was a puncture or rupture of rubber;
    • there is an uneven load on the car, as a result the car skewed to one side;
    • you have installed anti-skid chains on the wheels;
    • an overload of one of the axes has occurred; this happens when you are driving uphill or downhill, towing a trailer.

    Also, the TPMS system gives an error when you install new wheels or rearrange them.

    When, after these steps, a tire pressure error appeared, indicating unbalance, you should reset the settings, and then set the basic parameters. In this case, the control signal may remain even if the basic settings have been selected.

    Why such problems may occur:

    • different tire pressures . Some wheel is under-inflated or vice versa;
    • The error occurs because the system has crashed . It will only be possible to reset it at the service station;
    • the indicator lights up when you operate the car using a sporty driving style, driving on ice, dirt road . At the same time, as soon as you drive out onto an asphalt surface or start driving calmly, the error disappears.

    See also

    Velcro or spikes: which rubber is better for the Russian winter?

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    How to reset tire pressure error? To begin with, imagine that the TPMS system is working properly and the blinking light indicates a problem with the undercarriage of the machine. The first thing you should do is slowly release the gas. You can not brake sharply, turn the steering wheel. After the car has stopped, inspect the tires to make sure the rubber is not punctured or broken. Then you can check if the tire pressure is normal.

    Pay attention! The TPMS will not always show a tire pressure error. For example, if the tires are slowly deflating, the system will not inform you about the problem. In the same way, she will not notice the error if the tire pressure starts to drop rapidly. This usually happens when a tire ruptures. This feature of the TPMS system is explained by the specifics of identifying and counting nonconformities.

    However, in some cases, it happens that the TPMS system indicator is on, but the tires are in perfect condition. How to reset tire pressure error? We understand.

    A few simple ways to reset the tire pressure sensor error

    The complex TPMS system in some cases starts to work incorrectly. Usually, car owners observe the following picture: a tire pressure error is displayed on the display (the tire is underinflated), but in reality everything is fine with the wheel. You have to reset the tire pressure error. Otherwise, the TPMS system starts to work incorrectly.

    Photo: Shutterstock

    You also have to reset the tire pressure error when there is radio interference from high voltage power lines. Or when sources of radio signals are located in the immediate vicinity. But as soon as you move away from them, the pressure error disappears and the system begins to function properly.

    The reason for the malfunction may lie in the sensor, which is "failed". This damage cannot be easily repaired. How to reset a tire pressure error if the sensor flashes, while you hear a beep, lose your vigilance and find it difficult to drive a car? There are 4 ways to fix this problem.

    Method 1

    To reset the error, pick up a speed of 80 km / h and continue driving for another 15 kilometers.

    This method is the easiest to implement. If your car has this feature, then turn on the cruise control so that the speed does not change. Depending on the model of your car, you will be able to reset the tire pressure error at a speed that exceeds the specified one. After you cover a distance of 15-20 kilometers, maintaining the same speed of 80 km / h, make a stop. Turn off the motor. When you start it again, the tire pressure error will disappear.

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    Method 2

    Press the tire pressure monitoring system (TPMS) reset button on your car and you will be able to reset the error.

    It does not matter what type of low pressure warning system is used. In any case, there will be a sensor on each wheel of your car. Sometimes it may be necessary to reboot the touch system of the car. Read the owner's manual for the vehicle. It contains information on how to reset a tire pressure error. Most often, the instructions indicate which button to press to reset.

    The ignition key must be in the lock. No need to start the car, just turn it to the “on” (“ON”) position. Then press and hold the reset button, which may be under the steering wheel. We are waiting for the low pressure indicator to flash 3 times. After that, you can release the button. We start the car, it should work for 20 minutes. After this time, the computer will calibrate the sensors on the wheels. Now you can turn off the car.

    Method 3

    Lower and then re-inflate the wheels.

    Failed to reset tire pressure error using the previous method? Then we inflate all tires to 0.2 bar, this is the pressure that should be according to the recommendations of car manufacturers. Did the error go away? Then we lower the pressure in the tires completely.

    Now we pump up the wheels again. The pressure in them should be the same as indicated on the driver's door pillar or in the car's operating instructions. When there are sensors on the wheels, you need to remember about the spare tire. Now you need to drive about 3-5 kilometers, adhering to a speed of 25 km per hour. So you can reset the tire pressure error.

    Method 4

    Remove the battery terminals and then connect it to reset the error.

    Each car has a computer that receives data from all kinds of vehicle sensors, including TPMS system sensors. However, any electronics can fail. To reset the error, you will have to reboot the system, for which you need to turn off the power.

    Photo: Shutterstock

    To do this, open the hood. The battery is located under the hood. Disconnect the negative terminal from it. To perform this operation, use a wrench. Then sit in the driver's seat, turn the key to the "ON" position, but do not start the car. Now you need to press the signal for 3 seconds. This will use up the energy that remains in the electrical system of the machine. Then reconnect the battery. This way you can reset the error.

    How to adjust the tire pressure sensors

    Sensors keep track of tire pressure. However, you need to be sure that they function properly. Of course, you do not need to constantly walk around with a special measuring device and find out the status of the sensors. It just needs to be calibrated from time to time.

    It is performed quite simply. The most important thing to remember is that, depending on the make and model of your car, for each wheel there are pressure parameters strictly defined by the manufacturer for winter and summer. These values ​​should be given to the sensors. How the installation and configuration will be performed depends on the controller used.

    • Mechanical controller . It is convenient to use. We just screw it in instead of the cap. Nothing else needs to be configured.
    • Electronic controller . The installation procedure will be more difficult, because the device has a control unit. It can work autonomously or you will need to connect it to the cigarette lighter. We turn on the device in the training mode. Then proceed according to the tuning algorithm that is set by the manufacturer. You will have to put the device on all wheels, starting from the left front. Once the installation is done, make sure that all gauges are correctly displayed on the monitor. Otherwise, you will have to rearrange them so that everything matches the parameters on the display.
    • Internal controller . Such devices are the most difficult to mount, because for this you will have to use special equipment for tire fitting. Experts do not recommend using the internal controller yourself. However, additional settings are not required if the data is read using the screen that is directly on the control system.

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    To prevent a tire pressure error from appearing, it is important to calibrate (adjust the TPMS system) every time a change is made. For example, when you installed a new set of wheels, repaired tires, did balancing, and the like. Using TPMS controllers is quite simple. The main thing is to read the instructions for use of the device. And make sure that the tire pressure is the one recommended by the car manufacturer.

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    "What tires can be put on rims 14, 15 and 16: professional advice"

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    Every car owner gets annoyed if the tire pressure error icon lights up on the dashboard. This indicator informs you that something is wrong with the wheels. However, even if the tire pressure is optimal, the tire pressure error must be reset.

    The fact is that if the TPMS system icon constantly signals insufficient pressure, the driver will not be able to know when the rubber will actually begin to deflate. Driving becomes dangerous for both you and other road users. It is necessary to find out the cause of the malfunction as soon as possible and reset the tire pressure error. This is the only way to operate the vehicle safely.

    Reset tire pressure sensors - how to remove the error indication?

    TPMS or Tire Pressure Monitoring System is a set of equipment commonly found in modern vehicles. Its main job is to alert you if there are problems with tire pressure. For example, one tire has lost pressure - in this case it is not safe to drive, but the system will inform you about this, and you can inflate the wheel to avoid steering problems.

    But sometimes the system does not work correctly. Some sensors may fail or the system needs to be rebooted. In this case, you may see a blinking or simply lit tire pressure error indicator on the dashboard. Resetting the pressure monitoring system will help you solve the problem if the sensor is working.

    Please note that different vehicles may have different TPMS reset methods, so you may need to try several of them before you know the most effective one.

    Initially, you just need to hold the tire pressure sensor reset button for a few seconds until the pressure indicator flashes three times and then turns off. But sometimes it doesn't help much. So we found other ways to calm down the pressure control system.

    Method 1: Driving at 80 km/h

    First, locate the TPMS reset button, which is usually located somewhere under the steering wheel. Start the car, press and hold the button for 3 seconds. Then drive at a speed of 80 km/h for approximately 10 minutes. Of course, you will need to find a suitable track for this. Steady driving is an important part of resetting tire pressure sensors this way. Of course, before this operation, you will need to inflate the tires to the required pressure.

    Method 2: 20 minutes of idling

    In some vehicles, you will need to drive on any road and at any speed for 20 minutes after resetting the sensors, the main thing is not to turn off the engine.

    So, start the car, press the reset button and hold it for three seconds. Do not turn off the engine until 20 minutes have passed. You can drive or just let the engine idle for 20 minutes. This method of resetting pressure sensors should work for most vehicles. Again, inflate the tires to the correct pressure before resetting the system.

    Method 3: Inflating tires

    If the simple methods don't work with your machine, try another method. Start the engine so that the tire pressure monitoring system can register the changes. Then inflate the tire 0.2 bar above the recommended level. After a minute, completely deflate the tire. Wait one more minute to reset the sensors. Then inflate the tire to the optimum pressure level and let the engine run for another minute. The indicator should stop flashing.

    Method 4: Disconnecting the battery

    The idea is to reset the entire engine electronics system by cutting off the power supply from the battery. First, make sure all tires are at the correct pressure. After that, turn off the engine, open the hood and disconnect both terminals from the battery. Wait 10-15 minutes. Reconnect the battery and turn on the ignition to check if the indicator lamp goes out.

    Method 5: Special reset combination

    If the above methods do not work with your vehicle, there is another option. Find a manual for your car or open a forum thread that talks about resetting tire pressure sensors in your car. Look for the combination of steps the manufacturer recommends to reset the TPMS system. Sometimes the combination can be quite strange and even complex.

    If all else fails to reset the pressure sensors

    If all methods fail and the error light continues to flash, the problem may be with the sensors. It is the blinking signal of the tire pressure lamp that often indicates a sensor malfunction. If there is a problem with tire pressure, usually the light will just come on and not blink.

    This means that if the light is flashing, one of the sensors may be faulty. Replacing the element is not so easy because it is under the tire. The tire must be removed from the rim to replace the sensor.

    After replacement, you will still need to reset the pressure control system for the new sensor to work. Otherwise, the indicator will flash or light up.

    Where is the reset button for the tire pressure sensors?

    The button is often located directly below the steering wheel. But there may be different options. If you don't find the TPMS reset button there, look around the steering wheel - it should be somewhere in this area.

    How long does it take to drive the pressure system to zero?

    Difficult to say for all vehicles, but for most vehicles, the travel time before the tire pressure monitoring system resets should be at least 10-15 minutes. If you turn off the engine earlier than 10 minutes after pressing the reset button, the TPMS will still send some error signals the next time the engine is started.

    How do I reset the sensors for large tires?

    Drivers sometimes upgrade tires and wheels to larger ones and want their stock pressure control modules to work properly.

    Learn more