2018 Mitsubishi Outlander Sport Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2018 Mitsubishi Outlander Sport

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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 2018 Mitsubishi Outlander Sport 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 2018 Mitsubishi Outlander Sport 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 2018 Mitsubishi Outlander Sport?

When faced with a tire pressure warning light that remains illuminated in your 2018 Mitsubishi Outlander Sport, the first step is to manually check the tire pressure in all tires, including the spare. Using a reliable tire pressure gauge, ensure that each tire is inflated to the manufacturer's recommended PSI levels, as incorrect pressure can easily trigger the warning light. Next, visually inspect the tires for any signs of damage such as punctures or bulges, which could indicate a loss of air. If the tire pressure appears normal and there are no visible issues, consider resetting the tire pressure monitoring system as outlined in your vehicle's manual; this can often resolve minor glitches. If the warning light persists, it may be indicative of a malfunctioning tire pressure sensor, which would require diagnostic tools for proper assessment. Lastly, don’t overlook the valve stems; ensure they are intact and functioning correctly, as damaged stems can lead to air leaks and trigger the warning light. By following these steps, you can effectively diagnose and potentially resolve the issue with your tire pressure warning light.

What could be causing the tire pressure warning light to remain on in a 2018 Mitsubishi Outlander Sport?

When the tire pressure warning light stays on in a 2018 Mitsubishi Outlander Sport, it can indicate several underlying issues that need attention. The most frequent cause is low tire pressure, which can be easily checked and adjusted to meet the manufacturer's specifications. If the tire pressure is adequate, the problem may stem from a faulty tire pressure sensor that might require replacement. Additionally, the sensors could be miscalibrated, necessitating professional recalibration to ensure accurate readings. Electrical faults within the tire pressure monitoring system can also trigger the warning light, which may require a detailed diagnosis and repair. In some instances, performing a system reset can clear temporary glitches that keep the warning light illuminated. It is vital to address these issues promptly to ensure the safety and optimal performance of your vehicle, and consulting a qualified mechanic can help pinpoint and resolve the specific cause of the warning light.

What immediate steps should be taken if the tire pressure warning light remains on in a 2018 Mitsubishi Outlander Sport?

When the tire pressure warning light remains illuminated in your 2018 Mitsubishi Outlander Sport, it is crucial to act promptly 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 on the road. Start by checking the tire pressure in all four tires with a reliable gauge, ensuring they meet the manufacturer's specifications. If you find any tires underinflated, inflate them to the correct levels using a dependable air compressor. Additionally, visually inspect each tire for signs of damage, such as punctures or bulges, as these issues can compromise safety and require immediate attention. Once you have adjusted the tire pressure and addressed any visible damage, reset the tire pressure monitoring system according to your owner's manual. If the warning light persists despite these efforts, it is essential to consult a qualified mechanic, as there may be a deeper issue with the monitoring system that needs professional evaluation. Taking these steps not only enhances your safety but also helps maintain the longevity of your vehicle.

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