Pressure monitoring system comes on eventhough air pressure in tires is normal

The Tire Pressure Monitoring System Light, warning about my tire pressure, has been continually lighting up. The dealership said they fixed it, but the light still comes on. What will solve this problem?
Experienced mechanics share their insights in answering this question :
There are many potential causes for this. If the light stays on continuously, the tire pressure may not be set correctly or the system may need to be reset.

Changes in ambient temperature can also affect TPMS operation, since tire pressure drops in cold weather.

If both the low tire pressure and TPMS indicators are illuminated, then the Engine Control Module (ECM), or Electrical Control Unit (ECU), has detected a problem with the system. In this case, the diagnostic trouble codes (DTCs) should be retrieved to start the diagnostic process.

Anything from a failed sensor to a problem with the control module could cause both lights to be illuminated. I suggest you get a second opinion from someone other than the dealership. YourMechanic is an excellent option to get your trouble codes diagnosed, since we make house calls.

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The tire pressure monitoring system (TPMS) in your Honda is designed to alert you when one or more of your tires falls below the recommended tire pressure.
After the TREAD Act was mandated in 2007, all vehicles manufactured in the United States beginning in 2008, must be installed with direct or indirect TPMS systems.
The Feature: In this system, the vehicle`s ABS wheel-speed sensors calculate air pressure based on wheel-rotation characteristics. When the system detects that a tire`s pressure has dropped significantly below the recommended pressure, it alerts the driver by illuminating the TPMS indicator within the gauge cluster.
Honda CR-V uses 225/65 R17 tyres, for these tyres recommended tyre pressure is between 35-40 PSI. 35 PSI will give you better fuel economy while 40 PSI can be used for a smoother and more comfortable ride.
Drive at or above 50 mph to reset the sensor for 10 minutes. This causes your sensor to reset the next time you turn on your car. With the vehicle off, turn the key to the “On” position, but do not start the car. Hold the TPMS reset button until the tire pressure light blinks three times, then release it.
The Features: A Honda Sensing suite of safety and driver-assistive technologies is standard on all CR-V trims.
There are two main air filters in your 2014 Honda CRV. The engine air filter is located in the engine bay and is used to filter out harmful particles that may cause damage to your vehicle`s engine.
Hold the TPMS reset button until the tire pressure light blinks three times, then release it. Start the car and wait 20 minutes for the sensor to refresh. The tire pressure monitor reset button is typically located under the steering wheel. Refer to your vehicle`s owner`s manual if you`re unable to locate it.
Press and hold the TPMS button underneath the left side of the dashboard until the Low Tire Pressure/TPMS indicator blinks twice. If the indicator does not blink, press and hold the button again. Calibration will be complete after 20 minutes of cumulative driving at 30 to 60 mph.
So, what does TPMS mean? The letters in this acronym stand for Tire Pressure Monitoring System, a tool that allows you to check or monitor your tire pressure right from your dashboard. If there`s a problem, your TPMS will light up or flash to show you that it`s time for a checkup. Service Service Specials.
What Does a Flashing Tire Pressure Light Mean? If your Honda TPMS light is on and flashing, it could mean that the sensor battery is failing or that the tire pressure sensors are malfunctioning. Whatever the issue is, you should bring your vehicle into our Service Center as soon as possible.
WHAT IT MEANS & WHAT YOU NEED TO DO. The purpose of the TPMS (Tire Pressure Monitoring System) is to alert you when tire pressure is too low and could create unsafe driving conditions. If the light is illuminated, it means your tires could be underinflated, which can lead to undue tire wear and possible tire failure.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Pressure monitoring system comes on eventhough air pressure in tires is normal
ANSWER : There are many potential causes for this. If the light stays on continuously, the tire pressure may not be set correctly or the system may need to be reset.

Changes in ambient temperature can also affect TPMS operation, since tire pressure drops in cold weather.

If both the low tire pressure and TPMS indicators are illuminated, then the Engine Control Module (ECM), or Electrical Control Unit (ECU), has detected a problem with the system. In this case, the diagnostic trouble codes (DTCs) should be retrieved to start the diagnostic process.

Anything from a failed sensor to a problem with the control module could cause both lights to be illuminated. I suggest you get a second opinion from someone other than the dealership. YourMechanic is an excellent option to get your trouble codes diagnosed, since we make house calls.

My car’s tire pressure monitoring system lights come on when the tire pressure is normal
ANSWER : Your car is equipped with wheel speed sensors on each of the four wheels which monitor wheel speed while relaying this information to the ABS and traction control system (ESC) which are controlled by the car’s ECU. When the ECU senses an abnormal speed given specific conditions, it engages the ABS or traction control as needed to control the vehicle. Occasionally, these sensors can fail or only work intermittently, sending inaccurate signals to the ECU. When this happens, you may experience the symptoms you have described. The ABS or traction control system may be inadvertently activated by these false or inaccurate signals.

Your TPMS system works the same way in that there are sensors that monitor the tire pressure relaying this to the car’s computer. These sensors are known to go bad occasionally. Keep in mind this can also fluctuate easily with changes in air temperature, as this changes the density of the air which will affect the way these sensors read tire pressure. With regard to your heater turning off and on, this may be related to the blower motor relay which is what directs power to the heater blower motor. When this is faulty, this may cause the blower fan to work intermittently or sometimes not at all. I would suggest having a professional, such as one from YourMechanic, diagnose your ABS and traction control system to determine the cause of this.

Malfunction of the tire pressure monitoring system
ANSWER : That is a rather complex tire pressure monitoring system used by Audi. Using multiple sensors, antennae, and control module, this may require the Audi manufacturer’s scan tool to communicate with in order to diagnose. A tire service center (that is very well trained and well-tooled) may be better equipped to help you in this scenario. Audi issued a technical service bulletin (TSB # 44-08-17) that mentions of an update to the TPMS module, so you may also want to check in with your dealer to see if A8 Quattro is covered.

Why is my air system blowing out hot air in spurts and why is the temperature gauge nearing hot while in use?
ANSWER : This can be caused for a variety of reasons such as a malfunctioning thermostat, a radiator not flowing properly, a faulty coolant temp sensor or AC refrigerant not properly being supplied to the AC compressor. Your car’s AC system puts a heavy strain on your car’s engine when it runs as it requires a lot of power to run. When the AC compressor comes on it puts additional strain on the motor that may be already struggling to stay cool as a result of any of the issues named above. I would recommend having an expert from YourMechanic come to your home to diagnose and repair.

What does it mean if the Tire Pressure Monitoring System light comes on in the dash?
ANSWER : If the Tire Pressure Monitoring System light (TPMS) light comes on in the dash of your car, it indicates there’s a problem with the system itself, not that there’s a tire low on air. The TPMS light means that the system isn’t able to communicate with a sensor. There are a couple of reasons for this to happen:

The spare tire is installed on the car (the spare doesn’t have a sensor, so the TPMS light will come on normally).
One of the sensors has failed to communicate with the system.

If the light is on but you’re not driving with your spare tire on the car, have it inspected as soon as possible.

I having a problem with my nissan versa note year 2014 the tire pressure comes on across the dash even though the tires are aired
ANSWER : Your car has sensors at each of the four wheels that monitor the tire pressure at each tire. When these tire pressure sensors fail, you may notice inaccurate readings as to your tire pressure. In some cases such as yours, you may not receive any kind of indication. In extreme temperature conditions such as very warm or very cold, you may also notice the tire pressure changing. I would recommend having a professional from YourMechanic come to your location to diagnose and inspect your tire pressure monitoring system.

What does it mean if the Tire Pressure Monitoring System indicator comes on in the dash?
ANSWER : Your car is equipped with a pretty advanced system designed to monitor the amount of air in your tires (the tire pressure monitoring system, or TPMS). The light will come on for a number of different reasons. Here’s what you should know:

It comes on for a few seconds during startup but then should turn off.
If it comes on when you’re driving, it might indicate a problem with the TPMS system itself (the TPMS light is not the same as the Low Tire Pressure light).
It could be on because you have the spare tire mounted on the car. The spare doesn’t have a sensor, so the TPMS thinks there’s something wrong. It should go out after you have the tire replaced and the regular wheel back on the car.

Tire pressure monitoring system needs service
ANSWER : Hi, thanks for writing in. Usually when your tire pressure monitoring system has an issue, it is due to one of the sensors in the wheels. If it is not due to one of the sensors in the wheels I would recommend having the control module for the system inspected. These sensors inside the wheels get damaged due to corrosion or break it or sometimes they’re just missing. I would make sure that all four sensors are in place and in working condition. If sensors are broken dead or missing you can find them at a local tire shop. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect this service light for you, and make or suggest any repairs as needed.