how do I fix tire pressure monitoring system errors in my BMW 3 Series G20/G21 (2019-2024)?

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is off.
• Check tire pressures and inflate tires to the manufacturer's recommended levels.

2. Inspect and Replace TPMS Sensors (if needed)

• Tools Required: Tire iron, TPMS sensor tool, replacement sensors (if needed)
• Sub-steps:
  1. Loosen and remove the wheel lug nuts using the tire iron.
  2. Remove the wheel from the hub.
  3. Detach the TPMS sensor from the valve stem by unscrewing the retaining nut.
  4. Inspect the sensor for physical damage or corrosion.
  5. If the sensor is damaged, install a new TPMS sensor by reversing the removal steps.
  6. Reinstall the wheel onto the hub and tighten lug nuts to the manufacturer's torque specification.

3. Relearn TPMS Sensors

• Tools Required: TPMS reset tool (if applicable)
• Sub-steps:
  1. Turn on the ignition without starting the engine.
  2. Use the TPMS reset tool according to the manufacturer's instructions, or follow the onboard reset procedure in the vehicle's manual.
  3. Drive the vehicle at a speed of 30-60 mph for about 10-15 minutes to allow the system to relearn the sensor locations.

4. Clear Error Codes

• Tools Required: OBD-II scanner
• Sub-steps:
  1. Connect the OBD-II scanner to the vehicle's diagnostic port.
  2. Follow the prompts to read and clear any TPMS-related error codes.
  3. Disconnect the scanner and verify that the TPMS warning light is extinguished.