2018 Toyota Sequoia Tire Pressure Warning Light Stays On

Tire Pressure Warning Light in 2018 Toyota Sequoia: Causes and Solutions

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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 Toyota Sequoia 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 Toyota Sequoia 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 2018 Toyota Sequoia?

When diagnosing the tire pressure warning light issue on your 2018 Toyota Sequoia, it's crucial to follow a methodical diagnostic approach that prioritizes simpler solutions before moving on to more complex ones. Begin by checking the tire pressure in all four tires with a reliable tire pressure gauge, ensuring they are inflated to the levels specified in your owner's manual. This straightforward step can often resolve the warning light if the tires are under-inflated. Next, conduct a visual inspection of the tires for any signs of damage, such as punctures, cuts, or bulges, which could indicate a more serious issue. If the tires appear intact, proceed to reset the tire pressure monitoring system according to the instructions in your manual, as this can help clear any false alerts. Additionally, inspect the valve stems for leaks or damage, as these can also lead to pressure discrepancies. If the warning light persists after these checks, it may be necessary to consult a mechanic for a thorough diagnosis, ensuring your vehicle remains safe and reliable. By following this structured approach, you can effectively troubleshoot the tire pressure warning light and take the necessary steps to address any underlying issues.

What could be causing the tire pressure warning light to stay on in a 2018 Toyota Sequoia?

When the tire pressure warning light stays on in a 2018 Toyota Sequoia, it can be a source of concern for any DIY enthusiast. The first step is to check the tire pressure in all four tires, as low pressure is a common reason for the warning light to illuminate. Ensure that each tire is inflated to the recommended levels specified in the owner’s manual. If the tire pressure is adequate, the issue may stem from the tire pressure sensors themselves. These sensors can malfunction or have depleted batteries, leading to inaccurate readings. In such cases, replacing the sensor batteries or recalibrating the sensors may be necessary. Additionally, performing a system reset of the tire pressure monitoring system can sometimes clear the warning light, and this process is typically detailed in the vehicle's manual. If these troubleshooting steps do not resolve the issue, it may be time to consult a qualified mechanic or dealership for a more thorough diagnosis and repair.

What immediate actions should be taken if the tire pressure warning light remains on in a 2018 Toyota Sequoia?

When the tire pressure warning light remains illuminated in your 2018 Toyota Sequoia, it is crucial to act promptly to ensure your safety and the vehicle's performance. Ignoring this warning can lead to tire blowouts, reduced fuel efficiency, and compromised handling, which can significantly increase the risk of accidents. Start by checking the tire pressure in all four tires with a reliable gauge, ensuring they are inflated to the recommended levels found in your owner's manual or on the door jamb sticker. If you discover any underinflated tires, use an air compressor to bring them up to the correct pressure. Additionally, inspect each tire for visible damage, such as punctures or bulges, as these can also contribute to pressure loss and pose serious safety hazards. Once you have addressed any pressure discrepancies or damage, reset the tire pressure monitoring system according to the instructions in your manual. If the warning light persists despite these efforts, it is essential to consult a qualified mechanic or dealership to prevent further complications. Taking these immediate actions not only safeguards your vehicle but also enhances your overall driving experience.

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2018 Toyota Sequoia Tire Pressure Warning Light Guide