Scion iQ tire sensor light activation issue after relearn, persists despite multiple adjustments on Scion iQ

Some Scion iQ owners report experiencing persistent tire sensor light activation issues even after following the TPMS relearn procedure and making adjustments. These problems may arise if the correct TPMS relearn procedure is not followed, which could involve using a TPMS tool or OBD II module to reset the service maintenance indicator warning light. Additionally, owners may face challenges if their Scion iQ uses a direct TPMS system that requires a reset button or specific instructions from the owner's manual. Incorrect tire pressure can also trigger the TPMS light, making it essential to verify that all tires are inflated to the recommended levels. Some owners find that the issue persists due to malfunctioning tire pressure sensors, which may require checking for low batteries or other faults. To resolve the light, it may be necessary to reset it by stopping the vehicle safely, turning off the engine, and adjusting tire pressures as indicated. Consulting the owner's manual for specific reset instructions and using the tire pressure warning reset switch, if available, can further aid in addressing the issue.