How the 3rd Brake Light Works: Benefits, Cost, Price, Installation, Symptoms, Comparison, Pros and Cons, and Best Brands
The 3rd brake light, also known as the center high mount stop lamp (CHMSL), is an important safety feature on vehicles. It is the third brake light on a car that is mounted higher than the two main brake lights on either side of the car. The 3rd brake light was first introduced in the 1980s and has become a standard feature on most vehicles today. In this article, we will discuss how the 3rd brake light works, its benefits, cost and price, installation process, symptoms of a malfunctioning 3rd brake light, comparison of different brands, and maintenance tips.
How the 3rd Brake Light Works
The 3rd brake light is connected to the main brake lights of the vehicle. When the driver presses the brake pedal, the brake light switch sends an electrical signal to the 3rd brake light, causing it to illuminate. This extra brake light provides a clear and visible indication to following vehicles that the car is slowing down or stopping, reducing the risk of rear-end collisions.
The 3rd brake light also works in conjunction with the main brake lights. If one of the main brake lights is not functioning, the 3rd brake light will still work, providing an extra safety measure for the driver and other vehicles on the road.
Benefits of a 3rd Brake Light
The 3rd brake light has several benefits, including:
- Increased visibility: The 3rd brake light is mounted higher than the main brake lights, making it more visible to following vehicles.
- Reduced risk of collisions: The extra brake light provides a clear indication to other drivers that the car is slowing down or stopping, reducing the risk of rear-end collisions.
- Improved safety in adverse weather conditions: In heavy rain, fog, or snow, the 3rd brake light is more visible than the main brake lights, helping other drivers to see the car more clearly.
- Compliance with safety regulations: In many countries, the installation of a 3rd brake light is mandatory for all vehicles, ensuring compliance with safety regulations.
Cost and Price of a 3rd Brake Light
The cost and price of a 3rd brake light can vary depending on the type of vehicle and the brand of the light. On average, the cost of a 3rd brake light ranges from $20 to $100, while the installation cost can range from $50 to $100. Some brands offer DIY installation kits, which can save on installation costs.
It is important to note that the cost of a 3rd brake light may also vary depending on the type of bulb used. LED bulbs tend to be more expensive than traditional incandescent bulbs, but they have a longer lifespan and use less energy. Therefore, although the initial cost may be higher, LEDs can save money in the long run.
Installation Process of a 3rd Brake Light
The installation process of a 3rd brake light can vary depending on the type of vehicle and the brand of the light. However, most installations follow these basic steps:
- Remove the old 3rd brake light: Depending on the vehicle, the 3rd brake light may be attached with screws or clips. Use a screwdriver or pliers to remove them and gently detach the light from the vehicle.
- Prepare the new 3rd brake light: If the new light comes with a wiring harness, connect it to the light before installation. If it does not come with a harness, ensure that the wires are long enough to reach the existing wiring in the vehicle.
- Mount the new 3rd brake light: Align the new light with the old mounting holes and secure it in place using screws or clips.
- Connect the wiring: If the new light comes with a wiring harness, connect it to the existing wiring in the vehicle. If it does not come with a harness, use wire connectors to connect the wires from the new light to the existing wiring.
- Test the new light: Once the light is installed and the wiring is connected, test the light by pressing the brake pedal. If it does not illuminate, check the wiring connections and make sure they are secure.
If you are not comfortable with DIY installations, it is recommended to have a professional mechanic install the 3rd brake light to ensure proper installation and functionality.
Symptoms of a Malfunctioning 3rd Brake Light
Like any other vehicle component, the 3rd brake light can malfunction over time. Some common symptoms of a malfunctioning 3rd brake light include:
- The light does not illuminate when the brake pedal is pressed.
- The light flickers or only partially illuminates.
- The light stays on even when the brake pedal is not pressed.
If you notice any of these symptoms, it is important to have the 3rd brake light checked by a mechanic. Driving with a malfunctioning 3rd brake light can increase the risk of accidents and also result in a traffic violation.
Comparison of Different Brands
There are various brands of 3rd brake lights available in the market, each with their own unique features and price points. Some popular brands include:
| Brand | Features | Price Range |
|---|---|---|
| Philips | LED technology, longer lifespan, energy-efficient | $30 - $70 |
| Anzo USA | LED technology, easy installation, water-resistant | $50 - $100 |
| TYC | OE-comparable design, direct fit replacement | $20 - $50 |
| Dorman | OE-comparable design, direct fit replacement, affordable | $20 - $40 |
When comparing different brands, it is important to consider the features, price, and warranty offered by each brand to make an informed decision.
Pros and Cons of a 3rd Brake Light
Like any other vehicle component, the 3rd brake light has its own set of pros and cons, including:
Pros:
- Increased safety and visibility on the road
- Reduces the risk of accidents
- Compliance with safety regulations
- Easy to install
- Available in a variety of brands and price points
Cons:
- Initial cost of purchase and installation
- May require replacement over time
- Can malfunction and require maintenance
Best Brands for 3rd Brake Lights
As mentioned earlier, there are various brands of 3rd brake lights available in the market. Some of the best brands based on customer reviews and expert recommendations include:
- Philips
- Anzo USA
- TYC
- Dorman
- Putco
When choosing the best brand for your vehicle, it is important to consider the features, price, and compatibility with your vehicle model.
Maintenance Tips for a 3rd Brake Light
To ensure the proper functioning of your 3rd brake light, it is important to follow these maintenance tips:
- Regularly clean the lens of the light to ensure maximum visibility.
- Check the wiring connections for any signs of wear or damage and replace if necessary.
- Replace the bulbs if they are burnt out or dim.
- Have a mechanic check the functionality of the 3rd brake light during routine vehicle maintenance.
Vehicle Model Examples
To provide a better understanding of the 3rd brake light, here are some examples of popular vehicle models and the 3rd brake light installation process for each:
2018 Honda Civic
The 2018 Honda Civic comes with a factory-installed 3rd brake light. To replace it, follow these steps: