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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.
Small bulbs that burn out regularly - did you know you can replace these with LED lights?2003 GMC Sierra Denali 6.0L V8
Transmissions that leak fluid usually have never been flushed and the seal is finally leaking. The right stop leak product can cure a lot2003 GMC Sierra Denali 6.0L V8
If your transmission is running low on fluid, be sure to add some - find out how to do this here!2003 GMC Sierra Denali 6.0L V8
Replacing a dirty air filter can improve gas mileage by up to 4%. Isn't efficiency great?2003 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