2015 Lincoln MKZ Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2015 Lincoln MKZ

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Reviewed by
Andrew Hajjar
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 2015 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 2015 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 steps should I take to diagnose the tire pressure warning light issue on my 2015 Lincoln MKZ?

To effectively diagnose the tire pressure warning light issue on your 2015 Lincoln MKZ, start with the simplest solutions before moving on to more complex diagnostics. Begin by checking the tire pressure of all four tires, ensuring they are inflated to the manufacturer's recommended levels, as both low and high pressures can trigger the warning light. Next, inspect the tires for any visible damage, such as punctures or bulges, which could lead to pressure loss. If the tires appear to be in good condition, attempt to reset the Tire Pressure Monitoring System (TPMS) following the instructions in your vehicle's manual. This step can often resolve minor glitches. Additionally, check the tire pressure sensors to confirm they are functioning correctly and properly programmed. If the warning light remains illuminated after these steps, it may be time to consult your vehicle's manual for further troubleshooting guidance or seek a professional inspection to diagnose any underlying issues. By following this structured approach, you can efficiently address the tire pressure warning light concern.

What could cause the tire pressure warning light to stay on in a 2015 Lincoln MKZ?

When the tire pressure warning light remains illuminated in a 2015 Lincoln MKZ, it can be attributed to several common problems that DIYers can investigate. First and foremost, low tire pressure is the most frequent culprit; checking and inflating each tire to the manufacturer's recommended levels is a straightforward task that can often resolve the issue. If the tire pressure is adequate, the next step is to consider the possibility of a faulty tire pressure sensor. These sensors can malfunction, leading to inaccurate readings, so inspecting them for any visible damage or wear is advisable. Additionally, fluctuations in temperature can impact tire pressure, so it's worth noting any recent weather changes that might have affected your tires. If you suspect a leak, visually inspecting the tires for punctures or using soapy water to identify escaping air can be effective. Lastly, if all else fails, electrical issues within the vehicle's system may be at play, which might require professional diagnostic tools to pinpoint. By systematically addressing these potential problems, you can effectively troubleshoot the tire pressure warning light and ensure your vehicle remains safe and roadworthy.

What should I do if the tire pressure warning light on my 2015 Lincoln MKZ stays on?

When the tire pressure warning light on your 2015 Lincoln MKZ remains illuminated, it is crucial to act swiftly to avoid potential safety hazards and costly repairs. Ignoring this warning can lead to decreased vehicle performance, increased tire wear, and even tire blowouts, which pose serious risks while driving. Start by checking the tire pressure in all four tires, ensuring they are inflated to the recommended levels outlined in your vehicle's manual. If you find any tires underinflated, inflate them to the correct pressure using a reliable tire gauge. Additionally, inspect each tire for visible damage such as punctures or bulges, as these can compromise safety and performance. Once you have confirmed that the tires are properly inflated and undamaged, attempt to reset the tire pressure monitoring system, which can often be done through the vehicle's settings. However, if the warning light persists, it is essential to seek professional assistance. A qualified mechanic can diagnose any underlying issues with the tire pressure monitoring system, ensuring your vehicle remains safe and reliable on the road. Taking these steps not only enhances your driving experience but also safeguards your well-being and that of others on the road.

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2015 Lincoln MKZ Tire Pressure Warning Light Explained