Mitsubishi Montero Tire Pressure Warning Light Stays On

Common Causes for the Tire Pressure Warning Light in Your Mitsubishi Montero and How to Resolve Them

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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 Mitsubishi Montero 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 Mitsubishi Montero 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.

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.

Troubleshooting Tire Pressure Warning Light in a Mitsubishi Montero

When troubleshooting the tire pressure warning light in your Mitsubishi Montero, it's essential to adopt a systematic diagnostic approach. Start by checking the tire pressure of all four tires using a reliable gauge, ensuring they are inflated to the recommended levels indicated on the Tire Pressure and Loading Label found in the driver's door jamb. Look for any visible signs of damage or leaks, as these can often be the simplest issues to resolve. If the tire pressures are correct and there are no apparent problems, take your vehicle for a short drive; sometimes, the warning light may reset itself after a brief period of driving. However, if the light remains illuminated, it may indicate a malfunction within the tire pressure monitoring system (TPMS). In this case, further inspection is necessary, and it may be prudent to consult a professional service center for a thorough diagnostic check. By following this methodical approach, you can effectively identify and address the cause of the tire pressure warning light, ensuring your vehicle remains safe and roadworthy.

Troubleshooting Tire Pressure Warning Light in Mitsubishi Montero

When the tire pressure warning light illuminates in your Mitsubishi Montero, it’s essential to address the issue promptly to ensure your safety on the road. Start by visually inspecting each tire for any signs of damage or punctures, as a leaking tire is one of the most frequent culprits. If you notice any visible issues, consider using a tire repair kit for minor punctures or consult a professional for more significant damage. Next, check the tire pressure using a reliable gauge; if any tire reads 25% below the recommended pressure—typically around 35 PSI for most Montero models—inflate it to the correct level. Additionally, be aware that a malfunctioning tire pressure monitoring system (TPMS) can also trigger the warning light. If your tires are in good condition and properly inflated, but the light remains on, it may be necessary to reset the TPMS or have it inspected for faults. Regular maintenance and attention to your tire health can prevent these issues and keep your vehicle running smoothly.

Why is the Tire Pressure Warning Light Staying On in a Mitsubishi Montero?

When the Tire Pressure Warning Light remains illuminated in your Mitsubishi Montero, it is crucial to take immediate action. Ignoring this warning can lead to serious safety hazards, including reduced vehicle control and increased risk of tire blowouts, which can result in accidents. The light may indicate that one or more tires are significantly underinflated, which not only affects handling and braking but can also lead to premature tire wear and costly replacements. Additionally, if the light persists even after ensuring proper tire inflation, it may signal a more serious issue, such as a punctured tire or a malfunctioning tire pressure monitoring system (TPMS). Addressing these concerns promptly not only ensures your safety on the road but also helps maintain the overall performance and longevity of your vehicle. Regularly checking your tire pressure and seeking professional assistance when necessary can prevent further complications and keep your Mitsubishi Montero running smoothly.

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Mitsubishi Montero Tire Pressure Warning Light Explained