why does my Honda Civic 10th Generation (2016-2021) headlights flicker at idle

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the negative battery terminal to prevent electrical shock.

2. Check Battery and Alternator

• Sub-step 1: Reconnect the battery terminal after performing voltage checks.
• Sub-step 2: If the battery voltage is low, replace the battery with a new one, ensuring it meets OEM specifications.
• Sub-step 3: If the alternator is not providing proper voltage, replace it. Remove the serpentine belt (using a socket set) and unbolt the alternator. Install the new alternator and reattach the belt.

3. Inspect Electrical Connections

• Sub-step 1: Clean battery terminals using a wire brush and apply dielectric grease to prevent future corrosion.
• Sub-step 2: Tighten all electrical connections and ground wires, ensuring they are secure and free from rust or corrosion.
• Sub-step 3: Use electrical contact cleaner on any corroded connectors to ensure good contact.

4. Replace Headlight Bulbs (if necessary)

• Sub-step 1: Open the hood and locate the headlight assembly.
• Sub-step 2: Remove the headlight bulb socket by turning it counterclockwise; replace the bulb with the correct type.
• Sub-step 3: Reinstall the socket and test the headlights for proper functionality.