Mazda RX-7 Tire Pressure Warning Light Stays On

Common Causes for the Tire Pressure Warning Light in Your Mazda RX-7 and How to Resolve Them

Find Repair Location
Reviewed by
Bo Fader
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 Mazda RX-7 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 Mazda RX-7 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.

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 Mazda RX-7

When dealing with the tire pressure warning light in your Mazda RX-7, it's essential to adopt a systematic diagnostic approach. Start by visually inspecting your tires for any obvious signs of damage or low pressure, as this is the simplest and quickest step. If everything appears normal, utilize a TPMS diagnostic scanner to retrieve error codes, which can pinpoint any malfunctioning tire pressure monitoring system (TPMS) sensors. If you suspect a sensor issue, disconnecting the negative battery terminal for about a minute can reset the vehicle's computer system, potentially clearing any temporary faults. After resetting, drive your RX-7 at a speed of 16 mph or faster for at least three minutes, as this can sometimes help reset the TPMS light. If the warning persists, further scanning of all four TPMS sensors with a diagnostic tool will help identify any that are malfunctioning. Remember to keep an eye on the dashboard for the TPMS warning light, which resembles a tire with an exclamation point, as it serves as a crucial indicator of your tire's health. By following these steps, you can effectively troubleshoot and resolve the tire pressure warning light issue, ensuring your Mazda RX-7 remains safe and roadworthy.

Troubleshooting Tire Pressure Warning Light in a Mazda RX-7

When dealing with the tire pressure warning light in your Mazda RX-7, it's essential to understand the common problems that may be causing the alert. One frequent issue is low tire pressure, which can occur due to natural air loss, punctures, or temperature fluctuations. Regularly checking and maintaining the correct tire pressure is crucial for safe driving and optimal vehicle performance. Additionally, malfunctioning TPMS sensors can lead to false warnings; these sensors may fail due to battery depletion or physical damage. Using a TPMS diagnostic scanner can help identify any sensor issues. Another potential problem is a fault in the vehicle's computer system, which can sometimes be resolved by resetting the system. If the warning light persists despite addressing these common issues, it may indicate a more complex problem within the tire pressure monitoring system that requires professional diagnosis. By being aware of these common problems, you can take proactive steps to troubleshoot and resolve the tire pressure warning light in your Mazda RX-7, ensuring a safer driving experience.

Why is the Tire Pressure Warning Light Staying On in a Mazda RX-7?

When the Tire Pressure Warning Light remains illuminated in your Mazda RX-7, it is crucial to address the issue promptly to ensure your safety on the road. Ignoring this warning can lead to serious consequences, such as driving on under-inflated tires, which not only increases the risk of tire overheating and failure but also compromises your vehicle's handling and braking performance. To tackle this problem, start by checking for air leaks in your tires and verifying that they are inflated to the recommended pressure. If the tires are in good condition, inspect the Tire Pressure Monitoring System (TPMS) sensors for any defects or battery issues, as a malfunctioning sensor can also trigger the warning light. In some cases, simply resetting the TPMS system may resolve the issue. By taking these steps, you can ensure that your Mazda RX-7 remains safe and reliable, preventing potential accidents and costly repairs down the line.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.

Why Your Mazda RX-7 Tire Pressure Warning Light Stays On