What is the TPMS malfunction on my Acura?

The Tire Pressure Monitoring System (TPMS) is a safety feature in modern vehicles, including Acura models, that alerts drivers when the tire pressure in one or more tires falls below a certain threshold. A TPMS malfunction can indicate a problem with the system itself or an issue with the tires. In this article, we'll explore what a TPMS malfunction is and how to address it in your Acura.

What is a TPMS Malfunction?

A TPMS malfunction occurs when the system is unable to accurately monitor the tire pressure in your Acura. This can happen for a few reasons:

• A faulty TPMS sensor: Each tire on your Acura has a TPMS sensor that transmits the tire pressure data to the vehicle's computer. If one or more of these sensors is malfunctioning, the system will not be able to provide accurate readings.


• Damaged or missing TPMS sensors: If a TPMS sensor is damaged or missing, the system will not be able to monitor that tire's pressure.


• Interference with the TPMS signal: Various factors, such as electromagnetic interference or physical obstructions, can disrupt the communication between the TPMS sensors and the vehicle's computer, causing a malfunction.

When a TPMS malfunction occurs, your Acura's dashboard will typically display a warning light or message, alerting you to the issue.

Addressing a TPMS Malfunction in Your Acura

If you encounter a TPMS malfunction in your Acura, there are a few steps you can take to address the problem:

• Check the tire pressure: First, check the tire pressure in all four tires to ensure they are properly inflated. If one or more tires are underinflated, inflate them to the recommended pressure, which can be found in your Acura's owner's manual or on the driver's side door jamb sticker.


• Inspect the TPMS sensors: If the tire pressure is correct, the issue may be with the TPMS sensors themselves. Have a qualified technician inspect the sensors for any damage or malfunctions.


• Replace faulty TPMS sensors: If a TPMS sensor is found to be faulty, it will need to be replaced. This is a job best left to a professional, as the sensors need to be properly programmed and calibrated to work with your Acura's TPMS system.


• Address any interference issues: If the TPMS malfunction is due to interference, the technician may need to investigate and resolve the source of the interference, such as a nearby electrical component or a physical obstruction.

Addressing a TPMS malfunction in your Acura is important for maintaining the safety and performance of your vehicle. By understanding the causes and taking the appropriate steps to resolve the issue, you can ensure your Acura's TPMS system is functioning correctly and providing you with accurate tire pressure information.

How to fix TPMS system malfunction?

To fix a tire pressure sensor fault, first check and inflate all tires to the correct pressure, then attempt a manual reset using the button or infotainment system, or by driving for 10-15 minutes at a consistent speed like 50 mph. If the light persists, the sensor is likely faulty and needs replacement, which involves a professional mechanic dismounting the tire to access and replace the sensor, a process similar to the one described in this YouTube video.
 
1. Inflate your tires to the correct pressure 

• Check the recommended pressure on the sticker inside the driver's side door jamb or in your owner's manual. 
• Inflate all tires, including the spare if it has a sensor, to the correct pressure, ideally when the tires are cold. 

2. Attempt a TPMS reset 

• Manual reset: Turn the ignition to the 'ON' position without starting the engine. Press and hold the TPMS reset button (usually under the steering wheel or in the glove box) until the light blinks three times. Some vehicles may require navigating through the infotainment system to a "TPMS calibration" or "reset" option.
• Automatic reset: Drive the vehicle for at least 5-15 minutes at a consistent speed of 50 mph to allow the system to self-calibrate. 

3. Address a persistent fault 

• If the warning light remains on after resetting and driving, the sensor is likely faulty and needs to be replaced. 
• Faulty sensors are often due to a dead battery, which has a lifespan of about 7–10 years. 
• Replacing a TPMS sensor requires a professional to dismount the tire from the wheel, replace the sensor, and then likely use a specialized tool to program or relearn the new sensor to the vehicle's system. 
• A professional can also use a TPMS reset tool to diagnose the exact issue, which may be due to a faulty sensor or external interference. 

This video explains how to replace a TPMS sensor: 48sRepair GeekYouTube · Dec 25, 2020

What is the TPMS system malfunction on Acura?

Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly. The TPMS malfunction indicator is combined with the low tire pressure telltale.

How to fix check TPMS system acura?

Turn the key to “On” (one position to the right), but don't start the car. Now hold down the “TPMS Reset” button until the flashing tire pressure light blinks three times. Start the engine and wait 20 minutes. Check your owner's manual if you have trouble finding the reset button.

Can I still drive my car if the TPMS light is on?

You can drive short distances with a TPMS light on, but you should not continue driving without addressing the issue, as it indicates low tire pressure which can be a safety risk. Driving with underinflated tires can lead to poor handling, reduced braking, uneven tire wear, decreased fuel efficiency, and in the worst case, a tire blowout. 
This video explains why it's dangerous to drive with the TPMS light on: 1mABC11YouTube · Dec 13, 2017
What to do when the TPMS light is on

• Reduce speed and pull over: As soon as it's safe, pull over to check your tires. 
• Check tire pressure: Use a reliable tire gauge to check the pressure in all four tires and compare it to the recommended pressure on the sticker on your driver's side doorframe or in your owner's manual. 
• Inflate tires: Add air to any tires that are low. The light should turn off after driving a short distance as the system resets. 
• If the light is blinking: A blinking light often means there is a malfunction with the TPMS system itself, not just low pressure. You should have the system inspected and repaired by a professional as soon as possible. 

Why you shouldn't ignore the TPMS light

• Safety: Low tire pressure affects your vehicle's handling and braking, making it more difficult to control, especially in emergencies. 
• Tire damage: Driving on underinflated tires can cause them to overheat and wear down unevenly and prematurely. 
• Fuel efficiency: Your car's fuel efficiency decreases when tires are not properly inflated. 
• Blowout risk: In severe cases, the stress and heat from driving on severely underinflated tires can lead to a catastrophic tire failure.