2020 Mitsubishi Outlander Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2020 Mitsubishi Outlander: 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 Mitsubishi Outlander 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 Mitsubishi Outlander 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 2020 Mitsubishi Outlander?

To effectively diagnose the tire pressure warning light issue on your 2020 Mitsubishi Outlander, begin with the simplest solutions before progressing to more complex diagnostics. Start by checking the tire pressure in all four tires using a reliable tire pressure gauge, ensuring they are inflated to the levels recommended in your owner's manual. Next, inspect each tire for visible damage, such as punctures or bulges, which could indicate a leak or other issues. If the tires appear to be in good condition, attempt to reset the tire pressure monitoring system as outlined in your manual; this can often recalibrate the sensors and turn off the warning light. Additionally, examine the valve stems for any signs of damage or leaks, as faulty stems can lead to pressure loss. If the warning light remains illuminated after these checks, it may be time to consult a mechanic or dealership for a comprehensive inspection, as there could be underlying issues with the monitoring system that require professional attention. By following this diagnostic approach, you can systematically address the tire pressure warning light and ensure your vehicle's safety and performance.

What could be causing the tire pressure warning light to stay on in a 2020 Mitsubishi Outlander?

When the tire pressure warning light stays on in your 2020 Mitsubishi Outlander, it’s essential to identify the underlying issues that may be causing this alert. One of the most frequent reasons is low tire pressure, which can result from natural air loss or punctures. Regularly checking and inflating your tires to the recommended levels is a straightforward first step in troubleshooting this problem. If the tire pressure is adequate, the issue might stem from a faulty tire pressure sensor, which may need replacement to ensure accurate readings. Additionally, sensor calibration can sometimes be off, necessitating a recalibration according to the manufacturer’s guidelines. Electrical faults, such as damaged wiring or loose connections within the tire pressure monitoring system, can also trigger the warning light, so inspecting these components is crucial. Lastly, be aware that environmental factors, like extreme temperature changes, can impact tire pressure and activate the warning light. By systematically addressing these potential causes, you can effectively resolve the persistent tire pressure warning light in your Outlander.

What should I do if the tire pressure warning light stays on in my 2020 Mitsubishi Outlander?

When the tire pressure warning light remains illuminated in your 2020 Mitsubishi Outlander, 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 tires, including the spare, to ensure they are inflated to the manufacturer's recommended levels. If you find any tires underinflated, inflate them immediately to the correct PSI. Additionally, inspect each tire for visible damage, such as punctures or bulges, as these can compromise safety and performance. After making necessary adjustments, resetting the tire pressure monitoring system is often required to clear the warning light. If the light persists despite your efforts, it is advisable to consult a professional mechanic to diagnose any underlying issues. Taking these steps not only enhances your safety on the road but also helps maintain the longevity of your vehicle's tires.

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