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Toyota Tacoma Headlight Assembly

Diagnosing Toyota Tacoma Headlight Assembly Problems

Your Toyota Tacoma headlight assembly is an essential part of your vehicle. It ensures your safety while driving at night or in poorly lit road conditions. Located on the front of your car, the headlights can easily be damaged by various road substances. Knowing the usual problems in your headlight assembly and their causes will be very helpful in determining how to fix it. The following are the common headlight troubles you might encounter with your Toyota Tacoma:


If you notice your headlights dimming especially when you're driving at night, check on them as soon as possible because there may be electrical glitches that need to be given proper attention. Usually, dimming occurs because of a bad alternator. The alternator is responsible for keeping the battery charged. That's why when it becomes defective, the battery loses its power quickly and then causes the headlights to dim. To know if the power in your battery is flowing properly, it is best to use a volt meter.

Headlights not working

If only one headlight is not functioning, the reason would be a burned-out bulb. Bulbs die out eventually, and that's normal. Generally, a Toyota Tacoma headlight can last up to a maximum of 2,000 hours or 12,000 to 15,000 miles a year. But premature failure of the headlight could be due to a weak filament or when the vehicle is often driven on rough roads. If, on the other hand, both headlights are not working, the most likely cause would be a bad fuse, relay, or faulty wiring.

Short circuit

Electrical shorts are usually caused by moisture in the headlight housing or damage in the wirings. Moisture usually builds up when the seal on the headlight lens gets worn out. It eventually reaches the bulb terminals, which causes the short or the bulbs to blow out. You might want to check your headlight housing for cracks, which could be where the moisture originated. Frayed wiring can also result into a short circuit, and in this case, you will need the help of a professional. Lastly, you can check on the headlight fuse for damage as well. If the metal strip inside it is broken, the fuse would have to be replaced to prevent more incidents of electrical short.

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  • Tips on Keeping Your Toyota Tacoma Headlight Assembly Bright and Clear

    Can you ever imagine driving in total darkness without your trusty Toyota Tacoma headlight assembly? You would have to struggle squinting your eyes, hoping you'd clearly see the road ahead but to no avail. That would be pretty tough and not to mention, extremely dangerous. That is why it is important to keep your headlights clear and sufficiently bright at all times. Here are a few things you can do to ensure the proper maintenance of your headlights:Keep your headlights clean.

    • Do not allow dirt to build up.
    • There is actually no standard frequency of how often you should clean your headlights. But to be sure, you may clean your headlights at least once a week so that dirt will not accumulate over time. Because once you let filthy substances build up on your headlights, you would definitely find them difficult to remove.
    • Select effective cleaning materials.
    • In cleaning your headlights, it is essential to pick out the right cleaning tools and techniques. Among the most popular cleaning methods is the application of toothpaste. Many car owners have attested to its effectiveness. With the use of a soft cloth, you simply apply an adequate amount of toothpaste on the exterior of your headlights. It is not advisable to use whitening or mint toothpaste because they contain substances that could damage the headlights instead.You can also use acrylic conditioner, which prevents acrylic lens oxidation that causes cloudiness and yellowing on the headlight lens. Other items that you can try as well are aluminum polishing compounds, sand paper, carburetor cleaner, and the WD-40.
    Examine your headlights for cracks.A broken headlight lens does not only look unpleasant; it is also very inconvenient. Cracks can serve as entry points for moisture and other dirt particles, which could damage your headlights in the long run. So it is best to frequently inspect your headlights for cracks to fix the problem as early as possible and to avoid greater damages.It is not necessary to immediately replace your cracked or pitted lens, though. That would be very expensive when you can opt for products that can smooth out the cracks.