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Chevrolet C1500 Suburban Tail Lights

Troubleshooting Common Problems of the Chverolet C1500 Suburban Tail Lights

The tail light of your Chevrolet C1500 Suburban is designed to withstand the rigors of the road, but like other parts of your SUV they too will eventually start to wear. Chevrolet C1500 Suburban tail light problems vary widely from one model year to another, though the most common ones include the following:

The tail light remains off while the other lights are working

If the tail lights in the Suburban don't work while the rest of lights do, the problem might be with the tail light bulb. Tail lights can last as long as 1,500 hours of use before burning out, although this can be significantly shortened depending on the quality of the bulb, operating conditions and other factors. In addition, the tail light can also fail due to a malfunctioning turn signal switch. The turn signal switch is connected to the tail light switch, and if it fails the current will not be able to reach the tail light bulb. Check the tail light bulbs to see if the filament has been cut or burned. If the bulb appears ok, the problem could be with the turn signal switch.

The tail light and other lights are not working.

On the other hand, if all of the exterior lights in your car do not turn on, a blown fuse may be the source of the failure. The tail lights are protected from amperage overload by a single fuse, and once the fuse has failed it will not allow the electrical current to reach the brake lights. Check the tail light system fuse in the fuse panel using a test light to determine whether current is passing through the fuse. If the test light illuminates on both sides, the fuse is okay. But if only one side of the fuse lights up, the fuse has failed and must be replaced.

The tail light is lit even when the headlight is off

Another, though less common, problem with Chevy Suburban tail lights is that they remain lit even after the headlights are switched off. In such cases, the internal tail light switch may be out of adjustment. Refer to the user manual of your C1500 Suburban on how to adjust the switch of the tail light for your specific model year.

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  • Tips on Maintaining the Chevrolet C1500 Suburban Tail Lights 27 February 2013

    The tail lights of the Chevrolet C1500 Suburban are made of tough ABS plastic that can withstand years of use. In fact, it's so tough that Chevrolet expects it to last as long as the SUV itself. But despite this, the Chevrolet C1500 Suburban tail lights are still vulnerable to wear and damage. Aside from dents and cracks from fender benders, tail lights are also prone to wear from the elements and adverse road conditions. So if you own a C1500 Suburban and you want your SUV's tail lights to last a long time, just follow these easy maintenance tips:


    Avoid parking under the sun.


    As with other parts of the Suburban that's made out of plastic, the tail light lens are prone to degradation from the sun's ultra-violet (UV) rays. Constant exposure to direct sunlight will cause the headlights to fade and, in worst cases, become brittle and crack. So try to park your car under a shaded area to reduce the effects of UV degradation or, if a shaded parking space is unavailable, cover the car with a UV-resistant cover.


    Spray the mounting areas around the bulb with rust protectant to protect it against corrosion.


    Regularly spraying the mounting areas around the bulb of the Chevy Suburban tail lights with rust protectant can help stave off the onset of corrosion, especially for vehicles that are frequently used in constantly humid environments. We recommend using silicon-based spray because it silicon is non-reactive, highly water-resistant, and, since it is sprayed on, can easily seep into every nook and cranny of the tail light assembly.


    Restore clouded or scratched tail lights as soon as possible.


    The plastic tail light lenses of the Suburban can turn yellow and become hazy due to the effects of sun, wind, and rain, while sand, dirt, and debris can scratch the lens surface. And while they can still function, hazy or scratched tail lights can limit the tail light's visibility on the road and significantly diminish the car's appearance and value. So if you notice that the tail light lenses in your Suburban appear to be scratched or cloudy, get them restored using a tail light restoration kit.