Tire Pressure Monitoring System (TPMS) Warning Light Always On
The TPMS warning light is constantly illuminated on your 2020 Toyota Tacoma, indicating that one or more tires have low pressure or the system has detected a fault. This can affect tire wear, fuel economy, and safety if ignored.
Diagnosis Details
Possible Causes
One or more tires are significantly underinflated (below the recommended pressure).
TPMS sensor battery failure or sensor malfunction (common after 5-7 years).
Faulty TPMS receiver module or wiring issue.
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What You Should Do
Check and adjust all tire pressures to the recommended level (usually 32-35 psi, found on driver's door jamb sticker).
If the light remains on after driving a few miles, the system may need resetting (refer to owner's manual).
If it still stays on, have the TPMS sensors and system diagnosed by a professional.
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Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.