2020 Nissan Altima Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2020 Nissan Altima: Causes and Solutions

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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 2020 Nissan Altima 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 Nissan Altima 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 Nissan Altima?

When diagnosing the tire pressure warning light issue on your 2020 Nissan Altima, it's essential to adopt a systematic approach that prioritizes simpler solutions before delving into more complex diagnostics. Begin by checking the tire pressure in all four tires using a reliable tire pressure gauge, ensuring that the readings align with the recommended PSI found in your owner's manual or on the driver's side door jamb. Next, conduct a thorough inspection of each tire for any visible damage, such as punctures or bulges, and look for any foreign objects that may be causing a leak. If you find any discrepancies in tire pressure, adjust it accordingly using an air compressor to either inflate or deflate the tires to the correct level. After making these adjustments, it may be necessary to reset the tire pressure monitoring system (TPMS); refer to your owner's manual for specific instructions on how to do this. If the warning light remains illuminated despite these efforts, it could indicate a more serious issue with the TPMS sensors or system, at which point consulting a mechanic or dealership for professional diagnosis and repair is advisable. By following this methodical approach, you can effectively troubleshoot the tire pressure warning light issue and ensure your vehicle's safety and performance.

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

When the tire pressure warning light stays on in a 2020 Nissan Altima, it can indicate several common issues that DIYers can address. The most frequent cause is low tire pressure, so the first step is to check and inflate each tire to the recommended levels. If the pressure is adequate, the next possibility is a faulty tire pressure sensor, which may need recalibration or replacement. Additionally, consider the sensor batteries; if they are low, replacing them can often resolve the issue. Inspecting the wiring and connections of the tire pressure monitoring system is also crucial, as any damage or loose connections can trigger the warning light. Environmental factors, such as extreme temperature changes, can affect tire pressure readings, so it's best to check the pressure when the tires are cold for the most accurate results. If these steps do not resolve the issue, a malfunction within the tire pressure monitoring system itself may be present, which could require a diagnostic scan to identify the problem. By methodically checking these potential causes, you can effectively troubleshoot the tire pressure warning light in your Nissan Altima.

How urgent is it to address the tire pressure warning light on a 2020 Nissan Altima that stays on?

Addressing the tire pressure warning light on a 2020 Nissan Altima is crucial for maintaining both safety and vehicle performance. When this light remains illuminated, it signals that one or more tires may be underinflated, which can severely compromise handling and braking capabilities, especially in challenging driving conditions. This not only increases the risk of accidents but can also lead to uneven tire wear, necessitating costly replacements sooner than expected. Furthermore, underinflated tires can significantly reduce fuel efficiency, resulting in higher fuel costs over time. Ignoring this warning can also lead to tire damage, including the risk of a blowout while driving, which poses a serious safety hazard. Therefore, it is essential to promptly check and inflate the tires to the recommended levels, and inspect for any leaks or punctures. If the warning light persists after these checks, it may indicate a deeper mechanical issue that requires professional attention. Taking these steps not only ensures your safety but also protects your investment in your vehicle.

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