2020 BMW 440i XDrive Gran Coupe Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2020 BMW 440i xDrive Gran Coupe

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
40% chance it's the
Tire Leaking Air
0%
30% chance it's the
Wheel Leaking Air
0%
15% chance it's the
Tire Pressure Monitoring System
0%
15% chance it's
Something else
The most common reasons a 2020 BMW 440i xDrive Gran Coupe tire pressure warning light stays on are a leaking tire, a wheel that no longer holds air, or a faulty tire pressure monitoring system.
  • Tire Leaking Air: A puncture, valve stem issue, or rim damage can cause a tire to leak air, leading to loss of pressure.
  • Wheel Leaking Air: A puncture or damage to the tire or rim can cause air to leak, resulting in a loss of tire pressure.
  • Tire Pressure Monitoring System: A malfunctioning tire pressure monitoring system can be caused by faulty sensors or a dead battery in the sensor units.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2020 BMW 440i xDrive Gran Coupe tire pressure warning light stays on?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

When a tire pressure monitoring sensor fails, the tire pressure monitoring system control module will recognize a loss in communication and turn on the warning lamp which indicates the failure. This is most often the case. However, the tire pressure monitoring sensor may also fail by reporting incorrect tire pressures. This could cause a flat tire to go unrecognized, or a properly inflated tire to signal a low or high tire pressure warning.

When a relearn is needed, for any reason, the TPMS warning light will illuminate, and many vehicles will display a message relating to the TPMS system being inoperative or loosing communication. It is important to keep a watchful eye on tire pressures when this system is having issues because there is no warning available for underinflation or overinflation of the tires.

Wheels offer very few symptoms, but these symptoms should never be ignored. Visible cracks on the wheels may appear, especially after hitting a large bump, Most often, this will also be accompanied by loss of air from the tire on that wheel. Also, vibration in the steering wheel is very common when the tire is out of balance, and improper wheel nuts or bolts can cause creaking and popping noises to develop. Again, there are very few symptoms, but they should not be ignored.

The only symptoms requiring diagnosis for the tire pressure monitoring system warning lamp is if the warning lamp has illuminated while the tires have correct air pressure, or if the air pressure for the tires is out of specification and the warning lamp is off. This is because the overwhelming majority of cases where the TPMS lamp illuminates is due to the change in ambient temperature.

What steps should I take to diagnose the tire pressure warning light issue in my 2020 BMW 440i xDrive Gran Coupe?

To effectively diagnose the tire pressure warning light issue in your 2020 BMW 440i xDrive Gran Coupe, begin with a thorough check of the tire pressure in all four tires using a reliable tire pressure gauge. This initial step is crucial as it ensures that the tire pressure aligns with the specifications outlined in your vehicle's manual. Next, inspect the tires for any visible damage, such as punctures, cuts, or bulges, which could indicate a loss of pressure. Don’t overlook the valve stems; check them for any signs of damage or leaks, as these can also contribute to pressure issues. If everything appears normal, consider resetting the tire pressure monitoring system (TPMS), as it may require recalibration. Refer to your owner's manual for specific instructions on how to perform this reset. If the warning light remains illuminated despite these efforts, it may be time to consult a professional mechanic or a BMW dealership for a more in-depth diagnosis and repair. By following this structured approach, you can efficiently identify and address the underlying cause of the tire pressure warning light in your BMW.

What could be causing the tire pressure warning light to stay on in a 2020 BMW 440i xDrive Gran Coupe?

When the tire pressure warning light stays on in your 2020 BMW 440i xDrive Gran Coupe, it’s essential to identify the underlying issues to ensure your safety on the road. One of the most frequent causes is low tire pressure, which can result from natural air loss or changes in temperature. Regularly checking and maintaining your tire pressure at the recommended levels is vital. Another potential issue could be a faulty tire pressure sensor; if the sensor is malfunctioning, it will need to be replaced to restore accurate readings. Additionally, sensor calibration problems may arise, requiring professional recalibration to ensure proper functionality. It's also important to inspect your tires for any leaks or punctures, as these can lead to decreased pressure and trigger the warning light. Lastly, check the wiring and connections associated with the tire pressure monitoring system, as any damage or loose connections can contribute to the persistent warning. By addressing these common problems, you can effectively troubleshoot the tire pressure warning light and maintain the safety and performance of your vehicle.

What immediate steps should be taken to address the tire pressure warning light on a 2020 BMW 440i xDrive Gran Coupe?

When the tire pressure warning light activates on your 2020 BMW 440i xDrive Gran Coupe, it is essential to respond quickly to avoid potential safety hazards and costly repairs. Neglecting this warning can lead to serious consequences, including reduced vehicle performance, increased tire wear, and the risk of tire blowouts, which can endanger both you and other road users. Begin by checking the tire pressure using a reliable gauge, as maintaining the correct pressure is vital for optimal handling and fuel efficiency. If you discover that any tires are underinflated, inflate them to the recommended levels specified in your owner's manual or on the sticker located inside the driver's side door jamb. Additionally, conduct a thorough inspection of each tire for any signs of damage, such as punctures or bulges, which could compromise their safety and performance. If you find any issues, addressing them promptly is crucial. After ensuring that the tire pressure is correct and any damage is resolved, remember to reset the Tire Pressure Monitoring System (TPMS) to reflect the accurate tire conditions. By taking these proactive steps, you not only enhance your safety on the road but also prolong the life of your tires, making it an important DIY task for every BMW owner.

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