What Are the Reasons for Lexus Push-Button Start Not Working?

[StCorey]

Lexus push-button start failure is caused by damaged spark plugs or burned distributor contacts. Below are detailed explanations for these causes: Damaged Spark Plugs: Open the hood, remove the engine's plastic cover, and detach the high-voltage distributor wires. Mark each cylinder's position to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. Check for external debris like leaves or dust during removal and clean thoroughly. Insert new spark plugs into the holes, hand-tighten them initially, then secure with a socket wrench. Reinstall the high-voltage wires in the correct firing order and replace the cover. Burned Distributor Contacts: Insufficient ignition voltage from spark plugs prevents timely combustion of the air-fuel mixture. Incomplete combustion leads to carbon deposits in engine cylinders, causing overheating and affecting performance. Regular maintenance and inspection of spark plugs are essential. Replace or repair faulty spark plugs promptly when issues are detected.