How to Fix Subaru Dashboard Flickering Lights

If your Subaru’s dashboard lights are flickering, it can be a sign of electrical issues or a failing component. Addressing this problem promptly can prevent more serious damage and ensure your vehicle’s safety.

Common Causes of Flickering Dashboard Lights

  • Battery Problems: A weak or failing battery can cause inconsistent power flow, leading to flickering lights.
  • Alternator Issues: If the alternator isn’t charging properly, electrical components may flicker or malfunction.
  • Loose or Corroded Connections: Poor wiring connections or corrosion can disrupt the electrical flow.
  • Faulty Voltage Regulator: This component controls the voltage sent to the vehicle’s electrical system; a malfunction can cause flickering.

Steps to Fix the Issue

Follow these steps to troubleshoot and fix flickering dashboard lights in your Subaru:

  • Check the Battery: Inspect the battery terminals for corrosion and ensure they are tightly connected. Consider testing the battery’s voltage with a multimeter.
  • Test the Alternator: Use a multimeter to check the alternator’s output. It should read around 13.8 to 14.4 volts when the engine is running.
  • Inspect Wiring and Connections: Look for loose, frayed, or corroded wires around the dashboard and battery area. Secure or replace as needed.
  • Replace Faulty Components: If testing reveals a defective alternator or voltage regulator, have these replaced by a professional mechanic.
  • Visit a Professional: If the issue persists, seek help from a certified Subaru technician for a comprehensive diagnosis.

Preventative Tips

  • Regularly inspect and clean battery terminals.
  • Keep electrical connections tight and free of corrosion.
  • Have your vehicle’s electrical system checked during routine maintenance.
  • Replace aging batteries before they fail completely.

By understanding the causes and following proper maintenance, you can keep your Subaru’s dashboard lights steady and ensure your vehicle remains reliable and safe.