Note: Ensure the vehicle is powered off and parked on level ground before starting the replacement process.
1. Open the Hood: Locate and pull the hood release lever inside your vehicle, usually found under the dashboard on the driver's side. Open the hood and secure it with the prop rod.
2. Locate the Headlight Assembly: Identify the headlight assembly containing the bulb you need to replace. It is typically located behind the headlight lens on the front of your vehicle.
3. Remove Access Cover (if equipped): Some Altima models may have a protective access cover over the headlight assembly. If present, gently pry it open using a flat-head screwdriver or a plastic trim removal tool.
4. Disconnect the Wiring Harness: Locate the electrical connector attached to the back of the headlight assembly. Press down on the release tab on the connector and disconnect it from the headlight bulb socket.
5. Remove the Bulb Retaining Ring: Look for a retaining ring holding the bulb in place. It may be a metal clip or a twist-lock mechanism. Carefully remove or unclip the retaining ring to access the bulb.
6. Replace the Bulb: Once the retaining ring is removed, gently remove the old headlight bulb from its socket. Be careful not to touch the glass part of the new bulb with your bare hands, as it can cause premature failure. Insert the new bulb into the socket, aligning it correctly.
7. Reinstall the Retaining Ring: Secure the new bulb by reinstalling the retaining ring or clip. Ensure it is properly seated to hold the bulb in place.
8. Reconnect the Wiring Harness: Reconnect the electrical connector you disconnected earlier to the headlight bulb socket. Make sure it snaps securely into place.
9. Reinstall the Access Cover (if equipped): If your Altima has an access cover, carefully snap it back into place over the headlight assembly.
10. Close the Hood: Once you have replaced both headlight bulbs (if required), close the hood and secure it properly.
Remember, if you encounter any difficulties or feel unsure about the replacement process, it's best to consult your vehicle's owner's manual or seek assistance from a professional mechanic to ensure safety and accuracy during the replacement.
