Rear Turn Signal Replacement on a 2003 GMC Sierra 1500 WT 4.8L V8

GMC Sierra 1500 Model Years - 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007

How to take out the rear turn signal bulb on a 2003 GMC Sierra 1500

What would you like your bulbs to do? See Clearer Upgrade To LED HID Style

Consider a premium bulb like the Silverstar Ultra with a specially designed filament, proprietary gas mixture and lamp coating for the best downroad lighting. Learn more about Silverstar Ultra.
Upgrade your fog lights to LED with a direct install option that will connect easily to your car’s existing bulb housing. Sylvania has an option with aviation grade aluminum body and a turbo cooled fan. Check out Sylvania LEDs.
Consider a bulb like the zXe with a proprietary Xenon gas mixture to match the white light of HID lights for the brightest headlight and added clarity. More information on zXe bulbs.

Author

Hans Angermeier is an ASE certified Maintenance and Light Repair Technician and has produced over 100,000 videos showing drivers how to fix things on their cars. He has broad expertise on basic repair procedures covering the majority of cars on the road. Over the past 10 years, Hans has been focused on building CarCareKiosk, which is visited by millions of drivers each month.

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Video Description

This video shows you how to replace a burnt out rear turn signal on your 2003 GMC Sierra 1500. We recommend that you change both the driver and passenger side bulbs at the same time on your Sierra 1500 as they get dimmer over time and if one is out, then the other one is likely to burn out soon. If the turn signal (also known as a blinker or flasher) blinks rapidly or doesn't blink at all or lights up without blinking when it is turned on, this is your Sierra 1500's way of telling you that the bulb is burnt out. Turn your hazard lights on and check the front of your Sierra 1500 and then the back, whichever side is not lighting up is the side with the burnt out bulb.

When changing the turn signal bulb in your Sierra 1500, be careful not to touch the glass portion of the bulb with your fingers as this will cause the bulb to burn out prematurely.

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