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How to Automatically Relearn TPMS on 2020 Toyota Supra

Learn how to automatically relearn the TPMS on your 2020 Toyota Supra. Follow these simple, step-by-step instructions to reset and calibrate your tire pressure monitoring system.

Introduction: Why TPMS Matters

The Tire Pressure Monitoring System (TPMS) in your 2020 Toyota Supra is an essential safety feature. It monitors the air pressure in your tires and alerts you when the pressure is too low or high. Proper tire pressure ensures better fuel efficiency, longer tire life, and most importantly, safe driving.

Sometimes after changing tires, rotating them, or fixing a flat, your TPMS may need to be reset or relearned. Luckily, the 2020 Toyota Supra supports automatic TPMS relearning — meaning you won’t need a special tool or scanner in many cases.

In this blog post, we’ll walk you through everything you need to know about relearning the TPMS system on your 2020 Toyota Supra in simple, easy-to-follow steps.

What Is TPMS Relearning?

TPMS relearning means your vehicle’s computer is reprogramming or recalibrating its settings to recognize the correct air pressure levels and sensor locations on each tire. This is usually necessary when:

  • You install new tires
  • You rotate your tires
  • You replace or service a TPMS sensor
  • The TPMS warning light comes on without a clear reason

Does the 2020 Toyota Supra Have Automatic TPMS Relearning?

Yes. The 2020 Toyota Supra uses a direct TPMS system, which means it has pressure sensors mounted in each wheel. It can automatically relearn sensor IDs and their locations in most cases. This makes the process easier for drivers, especially those without advanced scan tools.

However, if the system fails to relearn automatically, you may need to visit a dealership or use a professional TPMS tool.

When Should You Relearn Your TPMS?

You should relearn your TPMS system if:

  • You’ve replaced or rotated tires
  • A TPMS sensor has been replaced
  • You’ve adjusted tire pressure and the warning light remains on
  • The TPMS warning light comes on after driving a short distance

How to Automatically Relearn TPMS on a 2020 Toyota Supra

Here’s a step-by-step guide that anyone can follow:

✅ Step 1: Check and Adjust Tire Pressure

Start by making sure all your tires — including the spare, if applicable — are properly inflated to the recommended PSI.

You can find this information:

  • On the driver-side door jamb
  • In your owner’s manual

For the 2020 Toyota Supra, typical recommended tire pressure is:

  • Front tires: 36 PSI
  • Rear tires: 38 PSI

Tip: Always check tire pressure when the tires are cold (not driven for at least 3 hours).

✅ Step 2: Start the Vehicle

  • Turn the ignition to the ON position, or start the engine if necessary.
  • Make sure you’re parked in a safe, open area — not in a garage or near tall metal objects that might interfere with signal reception.

✅ Step 3: Access TPMS Reset via Infotainment System

On the 2020 Toyota Supra, TPMS settings are managed via the iDrive infotainment system (since it’s built on a BMW platform).

Here’s how:

  1. Tap the Home button on your screen.
  2. Go to Car > Vehicle Status.
  3. Select TPMS or Tire Pressure Monitor.
  4. Choose Perform Reset or Initialize (depending on your software version).
  5. Confirm your selection.

The system will now begin monitoring and relearning the tire pressure and sensor positions.

✅ Step 4: Drive the Vehicle

  • Drive your car at a steady speed (above 30 mph) for about 10 to 30 minutes.
  • This allows the TPMS system to automatically detect and relearn each sensor.

Important: Make sure you drive long enough to allow the system to pick up and register all sensor IDs.

✅ Step 5: Wait for Relearning Confirmation

During or after driving, the infotainment system should show a message like:

“Tire Pressure Monitor Relearning Completed” or “Reset Successful”

Once this message appears, your TPMS system has successfully relearned the sensors.

What to Do If Relearning Fails

Sometimes the automatic process doesn’t work. Here are common issues and what you can do:

❌ Problem 1: TPMS Light Still On

Solution: Recheck tire pressure and repeat the reset steps.

❌ Problem 2: New Sensors Not Detected

Solution: If you recently changed sensors, they may need to be manually programmed using a TPMS tool. Visit a tire shop or dealership.

❌ Problem 3: System Not Relearning After Driving

Solution: Drive for a longer period, at least 30 minutes, and try on different roads to ensure strong signal reception.

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Do You Need a TPMS Tool for the 2020 Toyota Supra?

In most cases, no. The Supra supports automatic sensor detection without needing a special tool.

However, if you’ve:

  • Installed aftermarket sensors
  • Replaced more than one sensor
  • Reset failed after multiple tries

… then you may need a TPMS scan tool or relearn tool. These can trigger or register new sensors manually.

Tips to Avoid TPMS Issues in the Future

  1. Use OEM sensors: Toyota-approved or compatible sensors reduce error risk.
  2. Rotate tires regularly: But always relearn the system afterward.
  3. Avoid overinflation or underinflation: Both can trigger false TPMS alerts.
  4. Inspect sensors during tire services: Damaged sensors are a common issue.
  5. Check TPMS battery life: Some sensors fail due to internal battery depletion (usually after 5-7 years).

Frequently Asked Questions (FAQ)

Q1: How long does TPMS relearning take on a 2020 Toyota Supra?

A: Usually between 10 to 30 minutes of driving at speeds above 30 mph.

Q2: Can I drive with the TPMS light on?

A: You can, but it’s not safe. Low tire pressure increases the risk of tire failure. Always check your tire pressure first.

Q3: Do I need to visit a dealer to reset TPMS?

A: Not always. The 2020 Supra supports auto-relearn. But for sensor replacements or deeper issues, a dealer visit might be required.

Q4: Will disconnecting the battery reset TPMS?

A: No. TPMS settings are stored and won’t reset by disconnecting the battery.

Q5: What does “Reinitialize TPMS” mean?

A: It’s another way of saying the system will relearn and reset tire pressure values to the current readings.

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