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2002-2009 GMC Envoy Third Brake Light - Replacement 1611001
The third brake light is a central brake lamp, mounted higher than the vehicle's left and right brake lights. Its purpose is to provide a warning to drivers whose view of the vehicle's left and right stop lamps is blocked by interceding vehicles. It also helps to distinguish braking from turning signals. , Federal law mandates that all vehicles have the third brake light outfitted within the car. Additionally, the third light must be comparable to the other brake lights on the vehicle so that it is not distracting to the drivers behind the vehicle. ??The third brake light law went into effect in 1986, a decision based on that proved a reduction in rear end crashes with the use of the extra light?. If the third brake light on your 2003-2009 GMC Envoy is faulty, replace it immediately with a Replacement afterpart.
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