2018 Tesla 3 Tire Pressure Warning Light Stays On

Resolve Tire Pressure Warning Light in 2018 Tesla Model 3

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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 2018 Tesla 3 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 Tesla 3 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.

What steps should I take to diagnose the tire pressure warning light issue on my 2018 Tesla 3?

To effectively diagnose the tire pressure warning light issue on your 2018 Tesla Model 3, start with a manual check of each tire's pressure using a reliable tire pressure gauge. This initial step is crucial as it allows you to compare the readings against the recommended tire pressure specified in your owner's manual, ensuring that your tires are properly inflated. Next, conduct a visual inspection of the tires for any signs of damage, such as punctures, cuts, or bulges, which could indicate a loss of pressure. If the tire pressure appears normal and there are no visible issues, proceed to reset the tire pressure monitoring system as outlined in the owner's manual; this can often clear up false alerts or minor system glitches. However, if the warning light remains illuminated after these steps, it may be time to consult a Tesla service center for a professional diagnosis, as they can provide a more thorough inspection and address any underlying issues. By following this diagnostic approach, you can systematically identify and resolve the cause of the tire pressure warning light, ensuring your vehicle's safety and performance.

What could cause the tire pressure warning light to stay on in a 2018 Tesla 3?

When the tire pressure warning light stays on in a 2018 Tesla Model 3, it can signal a variety of issues that DIY enthusiasts should investigate. The most common culprit is low tire pressure, which can be easily checked with a tire pressure gauge; ensuring all tires are inflated to the recommended levels is essential for safety and vehicle performance. If tire pressure is adequate, the issue may stem from a faulty tire pressure sensor that might need replacement. Additionally, sensor calibration can sometimes be off, requiring a recalibration through the vehicle's settings or assistance from a professional. Electrical issues within the tire pressure monitoring system could also be responsible, necessitating diagnostic testing to identify the problem. Furthermore, rapid temperature changes can affect tire pressure readings, making it important to monitor tire pressure during such fluctuations. If the warning light remains illuminated after addressing these potential issues, it is advisable to consult a qualified technician to ensure the vehicle's safety and functionality.

How urgent is it to address the tire pressure warning light that stays on in a 2018 Tesla 3?

Addressing the tire pressure warning light that remains illuminated in a 2018 Tesla Model 3 is of utmost urgency due to several critical factors. First and foremost, safety is paramount; driving with improper tire pressure can significantly compromise vehicle handling, braking, and stability, increasing the risk of accidents. Additionally, neglecting this warning can lead to uneven tire wear, which not only shortens the lifespan of your tires but can also result in costly replacements. Furthermore, incorrect tire pressure adversely affects fuel efficiency, as underinflated tires create more rolling resistance, leading to higher fuel consumption and increased expenses at the pump. Lastly, maintaining the correct tire pressure is essential for optimal vehicle performance, as it directly influences how the car responds to steering and braking inputs. Therefore, it is crucial for DIY enthusiasts to promptly check and adjust tire pressure to ensure safety, enhance tire longevity, improve fuel efficiency, and maintain the overall performance of their Tesla Model 3.

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