my Toyota Highlander XU70 (2020-Present) shows a tire pressure warning, but the tires are fine

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the ignition is turned off.
• Tools Required: OBD-II scanner, tire pressure gauge, socket set, multimeter.

2. Inspect and Replace TPMS Sensors (if necessary)

• Remove Tire from Wheel:

  1. Loosen the lug nuts using a socket set.
  2. Lift the vehicle using a jack and place it on jack stands.
  3. Remove the lug nuts completely and take off the tire.

• Access TPMS Sensor:

  1. Deflate the tire to relieve pressure.
  2. Remove the valve stem nut and pull the TPMS sensor out of the tire.

• Replace Sensor:

  1. If the sensor is damaged, replace it with a new one (ensure it's compatible with the Highlander).
  2. Install the new sensor and secure it with the valve stem nut.

• Reassemble Tire:

  1. Inflate the tire to the recommended pressure.
  2. Reinstall the tire onto the wheel hub, tighten the lug nuts in a star pattern to the manufacturer's torque specification (usually around 76 ft-lbs for the Highlander).

3. Reset TPMS

1. Turn the ignition to the ON position without starting the engine.
2. Locate the TPMS reset button, typically found under the steering column or center console.
3. Press and hold the TPMS reset button until the tire pressure light blinks three times, then release.
4. Start the vehicle and allow it to run for a few minutes to ensure the system recalibrates.