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The center brake light, sometimes referred to as the third brake light or stoplight, on your 2003 GMC Sierra Denali lights up when you hit the brake pedal and helps prevent you from being rear ended by the cars behind you. See how to change the center brake light (CBL) on your GMC Sierra Denali in the video above. Be careful not to touch the bulb directly with your fingers when you replace the center brake light bulb on your Sierra Denali, touching the bulb causes the it to burn out quicker.
A burnt out center brake light bulb in your Sierra Denali is an excuse for a police officer to pull you over. Check your bulbs frequently and change burnt bulbs promptly.
A few key tips will make jacking up your car much safer2003 GMC Sierra Denali 6.0L V8
Low coolant levels is all to common - top yours up today2003 GMC Sierra Denali 6.0L V8
If your brake fluid is a little low, learn how to add some here. Ignoring a low level leads to big problems2003 GMC Sierra Denali 6.0L V8
Minor transmission fluid leaks can often be fixed with the right sealant - see how to do this2003 GMC Sierra Denali 6.0L V8
If your battery has green or white cruddy deposits, it is probably not getting enough juice from and will likely wear out sooner2003 GMC Sierra Denali 6.0L V8
If your blinker doesn't blink, or blinks rapidly, you likely have a burnt out bulb2003 GMC Sierra Denali 6.0L V8