Why is the tire pressure monitoring system warning light on in my 2020 Chevrolet Silverado 1500 T1XX...

Tire Pressure Monitoring System (TPMS) Warning Light Diagnosis for 2020 Chevrolet Silverado 1500 T1XX

Tools Required

• Digital tire pressure gauge
• OBD-II scanner
• Tire inflator
• Valve core tool
• TPMS tool (if needed for reprogramming sensors)
• Safety gloves and goggles

Repair Instructions

1. Reinflate Tires:

   • If any tire is under-inflated, inflate it to the recommended pressure.
   • Reset the TPMS system if necessary (check the owner’s manual for the specific reset procedure).

2. Replace Faulty Sensors:

   • If a DTC indicates a faulty TPMS sensor, remove the tire from the wheel.
   • Using a valve core tool, remove the valve core from the tire.
   • Detach the TPMS sensor from the wheel (may require breaking the bead in some cases).
   • Install the new sensor in the reverse order of removal.
   • Ensure to torque the sensor nut to the manufacturer’s specifications.

3. Reprogram TPMS Sensors:

   • If sensors are replaced, use a TPMS tool to program them to the vehicle. Follow the tool's instructions for programming each tire.
   • Drive the vehicle at speeds above 20 mph for about 10 minutes to allow the system to recognize the new sensors.

4. Reset the TPMS Light:

   • If the warning light persists after repairs, reset the TPMS system using the vehicle's onboard TPMS reset procedure. This often involves turning the ignition on and off or using a button located in the glove compartment or near the steering wheel.

5. Final Check:

   • After repairs, monitor the TPMS light for a few days to ensure it does not re-illuminate.
   • Regularly check tire pressures as part of routine maintenance.

Conclusion

If the TPMS warning light remains illuminated after following these steps, further diagnostic work at a professional service center may be necessary to investigate wiring issues or faults in the TPMS control module.