2024 Lexus NX450h+ Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light Issues in 2024 Lexus NX450h+ for Optimal Performance

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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 2024 Lexus NX450h+ 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 2024 Lexus NX450h+ 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 2024 Lexus NX450h+?

To effectively diagnose the tire pressure warning light issue on your 2024 Lexus NX450h+, begin with a thorough check of the tire pressure in all four tires using a reliable tire pressure gauge. It's crucial to ensure that the pressure aligns with the recommended levels found in your vehicle's manual, as incorrect pressure can trigger the warning light. Next, conduct a visual inspection of each tire for any signs of damage, such as punctures, cuts, or bulges, and look for any foreign objects that may be lodged in the tread, as these can lead to air leaks. If everything appears normal, consider resetting the tire pressure monitoring system, as sometimes the warning light can be activated by a temporary glitch. Follow the reset instructions provided in your vehicle's manual for this step. However, if the warning light remains illuminated after these checks, it may indicate a more serious underlying issue, and at this point, it is advisable to consult a mechanic or dealership for a professional diagnosis and repair. By following this diagnostic approach, you can systematically address the tire pressure warning light issue and maintain the safety and performance of your Lexus NX450h+.

What could cause the tire pressure warning light to stay on in a 2024 Lexus NX450h+?

When the tire pressure warning light remains illuminated in your 2024 Lexus NX450h+, it’s crucial to understand the common problems that could be causing this issue. One of the primary culprits is low tire pressure, which can easily be checked with a tire pressure gauge. Ensure that all tires are inflated to the manufacturer’s recommended levels, as even a slight drop can trigger the warning light. If the pressure is adequate, consider the possibility of a faulty tire pressure sensor. These sensors can malfunction due to wear and tear or electrical issues, leading to inaccurate readings. Additionally, temperature fluctuations can impact tire pressure; significant changes in weather can cause the pressure to drop, even if the tires are otherwise in good condition. Inspecting for leaks is also essential, as a punctured tire can lead to gradual air loss, prompting the warning light to activate. Lastly, if you’ve addressed these issues and the light persists, performing a system reset on the tire pressure monitoring system may recalibrate the sensors and turn off the warning light. By understanding these common problems, you can take the necessary steps to ensure your vehicle’s safety and performance.

What immediate steps should be taken if the tire pressure warning light remains on in a 2024 Lexus NX450h+?

When the tire pressure warning light remains illuminated in your 2024 Lexus NX450h+, it is crucial to act promptly to ensure your safety and the vehicle's performance. Ignoring this warning can lead to dangerous driving conditions, including reduced traction and increased tire wear, which may ultimately result in a blowout or loss of control. Start by checking the tire pressure in all four tires with a reliable gauge, ensuring they meet the manufacturer's recommended levels. If you find any tires are underinflated, inflate them accordingly to restore optimal pressure. Next, visually inspect each tire for any signs of damage, such as punctures or cuts, as these can compromise tire integrity and safety. After addressing any pressure or damage issues, reset the tire pressure monitoring system through your vehicle's onboard menu, as this can help turn off the warning light. If the light persists despite these efforts, it is essential to seek professional assistance to prevent further complications. Taking these immediate steps not only enhances your driving safety but also helps maintain the longevity and performance of your Lexus.

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