Learn the Easiest Way: 2020 Supra TPMS Relearn

The 2020 Toyota Supra, a dream machine for many, sometimes throws a curveball with its Tire Pressure Monitoring System (TPMS). If you've recently rotated tires, replaced a sensor, or are dealing with a persistent TPMS warning light, you'll need to perform a TPMS relearn procedure. This guide will walk you through the easiest and most reliable methods to get your Supra's TPMS back in sync.

Understanding TPMS in Your 2020 Supra

Before diving into the relearn process, it's important to understand what TPMS does. Your Supra's TPMS uses sensors within each tire to monitor the pressure and temperature. This information is transmitted wirelessly to the car's computer, which alerts you if a tire is underinflated. This is crucial for safety and fuel efficiency. However, any changes to your tires – rotation, replacement, or even a sensor battery change – can disrupt this system, leading to the dreaded TPMS warning light.

Methods for 2020 Supra TPMS Relearn

There are primarily two ways to relearn your 2020 Supra's TPMS: using the OBD-II port with a scan tool and using the vehicle's built-in system (if equipped). Let's explore both:

Method 1: Using an OBD-II Scan Tool

This is generally the most reliable and straightforward method. Many affordable OBD-II scanners on the market offer TPMS relearn functionality. You will need:

• A compatible OBD-II scanner: Ensure the scanner specifically states TPMS relearn capabilities for Toyota/Lexus vehicles. Check reviews and specifications before purchasing.
• Properly inflated tires: Make sure all your tires are inflated to the recommended pressure listed in your owner's manual.

Steps:

1. Connect the scanner: Plug the OBD-II scanner into your Supra's OBD-II port (usually located under the dashboard).
2. Turn the ignition on: Do not start the engine. Turn the ignition to the "ON" position.
3. Navigate to TPMS: Use your scanner's menu to locate the TPMS relearn function. The specific steps may vary depending on the scanner model.
4. Initiate the relearn process: Follow the prompts on the scanner's screen. This usually involves following a sequence of commands, like pressing the gas pedal or turning the ignition off and on.
5. Confirmation: Once the relearn process is complete, the scanner should display a confirmation message.
6. Test: Drive your Supra for a short distance to ensure the TPMS system is working correctly. The warning light should extinguish if the relearn was successful.

Method 2: Using the Vehicle's Built-in System (If Applicable)

Some vehicles have a built-in TPMS relearn procedure, often accessible through the infotainment system. However, the 2020 Supra's reliance on the OBD-II method is generally recommended due to the lack of a clear, user-accessible in-vehicle TPMS relearn procedure. Consult your owner's manual to see if your specific model offers this option.

Troubleshooting TPMS Issues

Even after performing a relearn, you might still encounter problems. Here are some common troubleshooting steps:

H2: Why is my TPMS light still on after the relearn?

Several reasons can cause the TPMS light to remain on even after a successful relearn. These include:

• Faulty TPMS sensor: A malfunctioning sensor may need replacement.
• Low battery in the sensor: TPMS sensors have batteries that eventually need replacing.
• Incorrect tire pressure: Ensure all tires are inflated to the correct pressure.
• OBD-II Scanner Error: Try using a different scanner or seeking professional help.

H2: How often should I relearn my TPMS?

You typically only need to relearn your TPMS after tire rotations, replacements, or sensor changes.

H2: What does it cost to replace a TPMS sensor?

The cost of replacing a TPMS sensor varies depending on your location and the specific sensor. Expect to pay anywhere from $50 to $150 per sensor.

Conclusion:

Relearning your 2020 Supra's TPMS is usually a straightforward process. Using an OBD-II scanner is the most reliable method. If problems persist after trying these steps, consult a qualified mechanic for professional diagnosis and repair. Remember always to refer to your owner's manual for specific instructions and recommendations. By following this guide, you can confidently handle your Supra's TPMS and keep your ride safe and efficient.