2020 Lincoln MKZ Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2020 Lincoln MKZ: Causes and Solutions

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Reviewed by
Devin Cabugcal
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 Lincoln MKZ 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 Lincoln MKZ 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 are the initial steps to diagnose a tire pressure warning light that stays on in a 2020 Lincoln MKZ?

When faced with a tire pressure warning light that remains illuminated in your 2020 Lincoln MKZ, it's essential to adopt a systematic diagnostic approach. Begin by checking the tire pressure in all four tires, including the spare, ensuring they align with the manufacturer's recommended levels found on the door jamb or in the owner's manual. Next, inspect each tire for any visible damage such as punctures or bulges, as these can lead to pressure loss and trigger the warning light. If the tire pressures are correct and the tires appear undamaged, consider resetting the tire pressure monitoring system (TPMS) as it may have registered a false alert. If the light persists, the issue could lie with a malfunctioning tire pressure sensor, which may require a professional diagnostic tool for accurate identification. Should these steps not resolve the issue, consulting a qualified mechanic or dealership is advisable for a comprehensive diagnosis, ensuring your vehicle's safety and performance are not compromised. By following this methodical approach, you can effectively troubleshoot the tire pressure warning light in your Lincoln MKZ.

What could cause the tire pressure warning light to stay on in a 2020 Lincoln MKZ?

When the tire pressure warning light stays on in your 2020 Lincoln MKZ, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. The most frequent cause is low tire pressure, which can be easily checked and adjusted to meet the recommended levels. If the tire pressure is adequate, consider the possibility of a faulty tire pressure sensor, which may need replacement to function correctly. Additionally, sensor calibration issues can lead to persistent warning lights, so recalibrating the sensors might be necessary. It's also important to inspect the electrical components of the tire pressure monitoring system, as wiring or connection problems can trigger the warning light. Lastly, a malfunctioning control module could be the underlying issue, and replacing it may resolve the problem. By methodically examining these potential causes, you can address the tire pressure warning light and ensure your vehicle is safe and road-ready.

What should I do if the tire pressure warning light on my 2020 Lincoln MKZ stays on?

If the tire pressure warning light on your 2020 Lincoln MKZ stays illuminated, it is essential to take immediate action to avoid potential safety hazards and costly repairs. Neglecting this warning can lead to dangerous driving conditions, including decreased traction and increased tire wear, which may ultimately result in a tire blowout. Begin by checking the tire pressure in all four tires, ensuring they are inflated to the levels recommended in your vehicle's manual. If you discover any underinflated tires, inflate them to the proper pressure using a reliable tire gauge. Additionally, inspect each tire for visible damage, such as punctures or leaks, as these issues can also trigger the warning light. Once you have made the necessary adjustments, you may need to reset the tire pressure monitoring system, a procedure typically outlined in your owner's manual. If the warning light remains on despite these steps, it is wise to seek assistance from a qualified mechanic or dealership, as this could indicate a more serious problem. By addressing the tire pressure warning light promptly, you not only enhance your vehicle's performance but also ensure your safety on the road.

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