2018 Toyota Camry Tire Pressure Warning Light Stays On

Resolve the Tire Pressure Warning Light in Your 2018 Toyota Camry

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Reviewed by
Devin Cabugcal
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 Camry 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 Camry 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 Camry?

When diagnosing the tire pressure warning light issue on your 2018 Toyota Camry, 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 with a reliable tire pressure gauge, ensuring they meet the recommended levels outlined in your owner's manual. This initial step can often resolve the warning light if the tires are under-inflated. Next, conduct a thorough visual inspection of each tire for any signs of damage, such as punctures or foreign objects lodged in the tread, as these can also trigger the warning light. If the tires appear to be in good condition and properly inflated, proceed to reset the tire pressure monitoring system according to the instructions in your manual, as temporary fluctuations can sometimes cause the light to activate. After resetting, take your vehicle for a short drive; this allows the system to recalibrate and may turn off the warning light if everything is functioning correctly. However, if the light remains illuminated despite these efforts, it may indicate a more serious issue with the tire pressure monitoring system itself, warranting a visit to a qualified mechanic for further diagnosis and repair. By following this structured approach, you can effectively troubleshoot the tire pressure warning light and ensure your vehicle's safety on the road.

What are the common problems that could cause the tire pressure warning light to stay on in a 2018 Toyota Camry?

When the tire pressure warning light remains illuminated in your 2018 Toyota Camry, it’s essential to understand the common issues that could be causing this alert. One of the primary culprits is low tire pressure, which can occur due to a puncture, slow leak, or simply the natural loss of air over time. Regularly checking and maintaining the correct tire pressure is crucial for safety and performance. Another potential issue is a faulty tire pressure sensor; if the sensor is malfunctioning, it may not provide accurate readings, leading to the warning light staying on. Additionally, some sensors are battery-operated, and a dead battery can prevent the sensor from relaying information effectively. Wiring problems, such as damaged or corroded connections, can also disrupt the tire pressure monitoring system, causing the warning light to activate. Furthermore, after tire rotations or replacements, the system may require recalibration to reset the warning light. Lastly, be mindful of seasonal changes, as colder temperatures can lead to a drop in tire pressure, triggering the alert. By systematically checking these factors, you can troubleshoot and resolve the issue, ensuring your vehicle remains safe and roadworthy.

What should I do if the tire pressure warning light on my 2018 Toyota Camry stays on?

If the tire pressure warning light on your 2018 Toyota Camry remains illuminated, it is crucial to take immediate action to ensure your safety and the longevity of your vehicle. Ignoring this warning can lead to decreased fuel efficiency, uneven tire wear, and even tire blowouts, which pose significant risks while driving. Start by checking the tire pressure in all tires, including the spare, using a reliable gauge to confirm they meet the manufacturer's specifications. If you find any tires are underinflated, inflate them to the correct levels, as proper tire pressure is essential for optimal vehicle performance. Additionally, inspect your tires for any visible damage, such as punctures or bulges, which could compromise their integrity. After making necessary adjustments, you may need to reset the tire pressure monitoring system to clear the warning light. If the light persists despite your efforts, it is advisable to consult a professional mechanic, as there may be underlying issues with the monitoring system that require expert attention. Taking these steps not only enhances your safety on the road but also helps prevent costly repairs down the line.

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