Introduction to TPMS in the 2020 Toyota Supra
2020 Toyota Supra TPMS DTCS Reset: The Tire Pressure Monitoring System (TPMS) is an electronic system that monitors the air pressure inside your tires. It alerts you if any of the tires are under-inflated, which can lead to unsafe driving conditions. The 2020 Toyota Supra comes with an advanced TPMS that can detect even small fluctuations in tire pressure. However, like any system, Diagnostic Trouble Codes (DTCs) can appear, indicating that something within the TPMS is not functioning correctly.
What are DTCs (Diagnostic Trouble Codes)?
DTCs are codes stored in your vehicle’s onboard computer whenever the system detects an issue. In the context of the TPMS, these codes can indicate various problems, such as a faulty sensor or an air leak in the tire. Understanding these codes is essential to resetting and resolving any issues with your Supra’s TPMS.
Common Causes of TPMS DTCs
There are several reasons why TPMS DTCs may appear on your 2020 Toyota Supra. Here are some of the most common causes:
- Faulty TPMS Sensors: The sensors in each tire can wear out over time, causing issues in communication with the car’s system.
- Low or High Tire Pressure: Extreme fluctuations in tire pressure, whether too high or too low, can trigger a TPMS warning.
- Tire Rotation or Replacement: If you’ve recently had your tires rotated or replaced, it can take time for the TPMS system to recalibrate.
- Signal Interference: Sometimes, wireless interference from other devices can interfere with the TPMS sensors.
Why Proper Tire Pressure is Essential
Maintaining the correct tire pressure isn’t just about preventing TPMS errors. Driving on under-inflated or over-inflated tires can significantly affect your vehicle’s performance, fuel efficiency, and safety. Properly inflated tires ensure better traction, even tire wear, and a smoother ride. Moreover, it helps to extend the lifespan of your tires.
Understanding How the TPMS System Works
The TPMS system in the 2020 Toyota Supra uses sensors located in each tire. These sensors continuously measure tire pressure and relay the information to the vehicle’s onboard computer. When the pressure falls outside of the manufacturer’s recommended range, the system triggers a warning light on your dashboard. Resetting the TPMS involves recalibrating these sensors after you’ve corrected any issues.
Signs that You Need to Reset TPMS
Here are some signs that you might need to reset your TPMS:
- Persistent Warning Light: If the TPMS warning light stays on even after adjusting your tire pressure.
- DTC Codes Displayed: If you’ve scanned your car and found specific DTCs related to the TPMS system.
- Tire Change or Rotation: After replacing or rotating tires, the system may need a reset to recalibrate.
Tools You Need to Reset TPMS DTCs
To reset the TPMS on your 2020 Toyota Supra, you’ll need:
- TPMS Reset Button (if applicable)
- TPMS Scan Tool (optional but helpful for checking DTCs)
- Air Pressure Gauge to ensure your tires are at the correct PSI.
Step-by-Step Guide to Resetting TPMS on the 2020 Toyota Supra
Step 1: Ensure Proper Tire Pressure
Before doing anything, make sure all tires are inflated to the recommended pressure. You can find this information on the driver’s door frame or in the owner’s manual. Use an air pressure gauge to verify.
Step 2: Turn On the Vehicle
Switch the car to “ON” mode without starting the engine. This will activate the vehicle’s electrical systems, including the TPMS.
Step 3: Use the TPMS Reset Button
Many vehicles, including the 2020 Supra, have a TPMS reset button. This is usually located under the dashboard or near the steering wheel. Hold down the button until the TPMS light blinks three times, signaling that the system is resetting.
Step 4: Drive the Supra for Calibration
Once the reset is initiated, take the vehicle for a drive. A 10–15 minute drive at speeds above 30 mph should allow the TPMS system to recalibrate. Keep an eye on the dashboard to ensure the warning light turns off.
Step 5: Using a TPMS Scan Tool
If you still encounter issues, using a TPMS scan tool can help. These tools can communicate with your vehicle’s onboard computer, allowing you to check for any remaining DTCs and force a reset.
Resetting TPMS via the Supra’s Infotainment System
In some models, you can access the TPMS reset function through the infotainment system. Follow these steps:
- Navigate to the “Vehicle Settings” menu.
- Select “TPMS” and look for the reset option.
- Follow the on-screen prompts to reset the system.
Preventing Future TPMS Issues
To avoid TPMS problems in the future:
- Regularly check your tire pressure.
- Replace TPMS sensors every 5–7 years or as needed.
- Ensure proper installation when rotating or changing tires.
Conclusion:
Resetting the Tire Pressure Monitoring System (TPMS) on a 2020 Toyota Supra after diagnosing and clearing Diagnostic Trouble Codes (DTCs) is crucial to maintaining the performance and safety of your vehicle. Understanding the specific TPMS DTCs and following the correct reset procedure ensures the system functions properly and alerts you in the case of low tire pressure. Always consult your owner’s manual or a certified technician if unsure about the TPMS reset process. Regularly checking and maintaining proper tire pressure contributes to vehicle safety, fuel efficiency, and tire longevity.
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FAQs
1. What is the TPMS on the 2020 Toyota Supra?
The Tire Pressure Monitoring System (TPMS) monitors the air pressure in the tires and alerts the driver if the pressure falls below a safe level.
2. What are TPMS Diagnostic Trouble Codes (DTCs)?
TPMS DTCs are error codes generated when there is an issue with the system, such as a malfunctioning sensor or low tire pressure.
3. How do I reset the TPMS on my 2020 Toyota Supra?
To reset the TPMS:
- Check that all tires are inflated to the correct pressure.
- Use the vehicle’s infotainment system or manual reset button (if available) to perform the reset.
- Drive the vehicle for a few minutes to allow the system to recalibrate.
4. What should I do if the TPMS light stays on after resetting?
If the TPMS light remains on, recheck the tire pressures. If the pressures are correct, there may be a malfunction in the system, such as a faulty sensor, and further diagnostics may be required.
5. Can I reset the TPMS myself after fixing a DTC, or should I visit a dealer?
You can reset the TPMS on your own, but if the light doesn’t go off after a reset, or if you’re unsure about the DTC, it’s recommended to visit a certified Toyota dealer or a qualified technician for further inspection.
6. Will resetting the TPMS fix all TPMS-related issues?
No, resetting the TPMS only recalibrates the system. If there is a persistent issue such as a faulty sensor, low tire pressure, or system malfunction, resetting alone will not fix the problem.
7. Do I need any special tools to reset the TPMS?
In most cases, no special tools are needed to reset the TPMS in the 2020 Toyota Supra, as it can be done through the infotainment system. However, some diagnostic tools may be required to clear certain DTCs.
