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Nissan Altima Headlight

Important Tips on Nissan Altima Headlight Care and Maintenance

Most drivers often take the headlights for granted, but what happens when they break down? And even if your headlight assembly is in working condition, are you sure that it is working at its best? Since the headlights are your ride's most important lighting components, is important that the headlights are well-maintained. In this guide, we'll share with you some tips on how to take care of the Nissan Altima headlight.

  • Clear up faded headlight lenses with toothpaste.

Headlight lenses tend to deteriorate as time passes due to exposure to UV rays, resulting in a cloudy appearance that can hinder the effectiveness of the headlight beam. Good thing, clearing a cloudy headlight can be as easy as scrubbing it with toothpaste. Apply the toothpaste on a clean piece of cloth and rub the cloth on the headlight lens in a circular motion. The mildly abrasive qualities of the toothpaste should scrape off the damaged surface of the headlight and reveal the cleaner layer. However, if the headlight still appears faded, you will need to use a headlight restoration kit. You can usually find these kits in hardware and auto parts stores as well as in online retailers.

  • Do not touch the headlight bulb with your bare hands.

When inspecting the headlight bulb, make sure to touch only the socket and not the bulb itself. The glass housing of the headlight bulb is so thin that oils excreted from your fingertips can damage it. If you do accidentally touch the bulb, wipe the bulb with a cloth soaked in rubbing alcohol and let it dry.

  • Test for brightness regularly.

Halogen bulbs also gradually wear over time, although this may not be evident at first glance. If you suspect that your Altima's headlights are starting to dim, park your car five feet from a wall or a garage door and turn the headlights on. The beam of light should be a clear bright white color. If it has a yellow or amber color, the headlights may need replacing soon. Also, take note if the headlights are dim but start to brighten when you step on the gas; this is a likely indicator that the alternator is malfunctioning or a slipping drive belt.

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  • How to Troubleshoot Common Problems with Nissan Altima Headlight

    The headlights are, without a doubt, the most important set of lights in your Nissan Altima. If these lights start to malfunction or completely fail altogether, it can be quite a nerve-wracking experience. However, diagnosing headlight problems are not that straightforward, as they can be caused by a wide variety of factors. Here are some of the most common issues with headlights and tips on how to troubleshoot them:

    One of the headlights doesn't work

    If a single headlight starts to light up erratically or doesn't light at all, it's likely caused by a burnt-out bulb. Open the hood, disconnect the battery, and twist the headlight socket to pull out the headlight bulb. Take note of the headlight's condition: if the inside appears burnt or the filament inside has broken apart, the bulb has failed and needs to be replaced. We also recommend checking the electrical connectors on the back of the headlight sockets for damage or rust. In such cases, you may need to clean and reattach the connectors as necessary.

    Both headlights do not work

    On the other hand, if two headlights are malfunctioning or if the headlight bulb appears to be in good working condition, the problem may be due to an electrical one. In this case, you need to start with the main fuse for the headlight circuit. In the Ford Explorer, the fuse is located in a fuse box at underneath the driver's side of the dashboard. If the fuse appears burnt, discard it and install a new headlight fuse. Take note that if the new fuse also blows immediately, there's a short in the headlight circuit that needs to be fixed. However, if the fuse appears to be fine but there is no power, the problem is likely due to either a faulty relay or control module.

    The headlight seems dim or fluctuates when you step on the gas

    When this occurs, it is most likely caused by a malfunctioning alternator or a slipping drive belt. With the engine idling, check the charging voltage: if the charging system is operating normally, the battery should post 13.5 to 14.5 volts. If it is less than 13 volts, there is a problem with the charging system.