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What does the "Tire Pressure Monitoring System" warning light indicate in a 2020 Toyota Highlander? - Toyota Highlander
Home/Cars/Toyota/Highlander/Fourth Generation (2020-present)/What does the "Tire Pressure Monitoring System" warning light indicate in a 2020 Toyota Highlander?

What does the "Tire Pressure Monitoring System" warning light indicate in a 2020 Toyota Highlander?

Toyota Highlander Fourth Generation (2020-present)

Error Codes
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
4 min read
605 words

Problem Statement

Learn about the Tire Pressure Monitoring System (TPMS) warning light in the 2020 Toyota Highlander, including symptoms, diagnostic steps, and tools required for troubleshooting.

Affected Component
Tire Pressure Monitoring System (TPMS)

Symptoms

  • •One or more tires are significantly under-inflated.
  • •A tire is over-inflated.
  • •The TPMS sensors are malfunctioning.
  • •The TPMS system requires re-calibration after a tire change or rotation.
  • •A low battery in one of the TPMS sensors.

Diagnostic Steps

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Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

  • ✓Test the affected component to ensure it functions correctly
  • ✓Check for any error codes or warning lights
  • ✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • •Tire pressure gauge
  • •OBD-II scanner (optional)
  • •Tire inflator or compressor
  • •Torque wrench (for wheel lug nuts)
  • •Valve core tool (if replacing TPMS sensors)

Additional Information

Affected Component
Tire Pressure Monitoring System (TPMS)
Difficulty
medium
Severity
medium
Tools Required
5 items

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Tire Pressure Monitoring System (TPMS) Warning Light in a 2020 Toyota Highlander
Tools Required
  • Tire pressure gauge
  • OBD-II scanner (optional)
  • Tire inflator or compressor
  • Torque wrench (for wheel lug nuts)
  • Valve core tool (if replacing TPMS sensors)
Repair Instructions

Step 1: Adjust Tire Pressure

  1. Deflate or Inflate Tires:

    • If any tire is below the recommended pressure, inflate it to the correct level.
    • If any tire is over-inflated, release some air until it reaches the correct pressure.

  2. Recheck Tire Pressure:

    • After adjusting, double-check the tire pressure with your gauge.

  3. Reset TPMS:

    • In most cases, the TPMS will reset itself after driving for a short distance (typically over 15 mph).
    • If the light remains on, proceed to the next steps.

Step 2: Sensor Inspection/Replacement

  1. Remove the Tire:

    • Use a jack to lift the vehicle and securely place it on jack stands.
    • Remove the wheel lug nuts with a torque wrench and take off the tire.

  2. Inspect or Replace TPMS Sensor:

    • If a sensor is faulty, use a valve core tool to remove the sensor from the valve stem.
    • Replace it with a new TPMS sensor, ensuring it is compatible with your vehicle.
    • Reinstall the valve core and tighten it properly.

  3. Reinstall the Tire:

    • Reattach the wheel, ensuring the lug nuts are tightened to the manufacturer's specifications.

Step 3: Calibrate TPMS (If Needed)

  1. Use the TPMS Relearn Tool:

    • Some vehicles require a TPMS relearning procedure. Use a TPMS relearn tool or follow the vehicle-specific procedure outlined in the owner’s manual to calibrate the system.

  2. Drive the Vehicle:

    • After any adjustments or repairs, drive the vehicle for a few miles to allow the TPMS system to self-check and reset.
Conclusion

If the TPMS warning light persists after following these steps, or if you encounter any issues, it may be advisable to consult a professional technician or visit a Toyota dealership for further diagnosis and repair.