Category: 

What is the Third Brake Light?

Article Details
  • Written By: Lori Kilchermann
  • Edited By: Lauren Fritsky
  • Last Modified Date: 06 December 2016
  • Copyright Protected:
    2003-2016
    Conjecture Corporation
  • Print this Article
Free Widgets for your Site/Blog
Helium is the only element that was discovered in space before it was found on Earth.  more...

December 10 ,  1948 :  The UN adopted the Universal Declaration on Human Rights.  more...

The third brake light, as it is commonly called, is a brake light that sits high above a vehicle's taillights. Designed to sit in the line of sight of drivers following a vehicle, the high brake light is intended to serve as a warning that a vehicle is slowing down. An increase in rear-end collisions worldwide was attributed to drivers following vehicles too closely in congested traffic areas, which prevented drivers from easily seeing the tail and braking lights of vehicles ahead of them. By placing the third brake light high in the rear of a vehicle, it was thought that drivers following too closely to see the tail lights could at least see this raised brake light. Subsequent testing reveals that the high brake light may be responsible for a reduction in rear-end collisions.

Ad

Often mounted in the trunk lid or rear window of an automobile, a third brake light is designed to easily be seen over the hood line of a following vehicle. Many automobile designers use light-emitting diode (LED) units to blend more subtly into the vehicle's body lines. Some early versions of the third brake light used full-sized brake lights molded high into the rear body sides of the vehicle. Mini-vans and sport compact utility vehicles (SUVs) are the most common users of this type of taillight configuration. In order to maintain a clean air flow line over the vehicle, many sports cars have the high brake light molded into the trailing edge of a rear air spoiler.

The success of the high brake light in preventing rear-end collisions proved to work so well that motorcycle manufacturers have adopted the inclusion of the warning device into their designs. Many touring-type motorcycles that have large, rear-mounted luggage bags have a brake light mounted in the top of the bag. This allows the light to be seen clearly by most drivers, regardless of the following distance of the trailing vehicle. Some motorcycle manufacturers have included a bright strobe light in this area of the luggage bag as well. The bright blinking light serves to get the attention of motorists approaching the motorcycle from the rear on busy highways.

One public testament to the third brake light is the emerging inclusion of the light in the world's most expensive custom-built hot rods and custom vehicles. In an effort to protect their investment, some owners of prized custom show vehicles are installing the lights in their cars. Often made from billet aluminum and LED units, these additions are gaining popularity in the show car circuit.

Ad

You might also Like

Recommended

Discuss this Article

Reminiscence
Post 1

I remember when the first cars with a third headlight were introduced, and I thought at the time they were more of a nuisance than a help. I had become accustomed to looking down at the left or right brake lights of the car ahead of me. This third light was a distraction.

Now I see the wisdom of a third brake light. I can look forward to see other hazards besides the car in front of me. I can still see traffic signals or pedestrians while I'm looking at the mounted brake light. It doesn't matter if I'm close to the other car's bumper or not. The only thing I can't see at close range are turn signals, but that's a minor consideration in traffic.

Post your comments

Post Anonymously

Login

username
password
forgot password?

Register

username
password
confirm
email