Brake Light Replacement: 2003 GMC Sierra 1500 WT 4.8L V8

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

How to remove a burnt out brake light bulb on a 2003 GMC Sierra 1500

Learn More >

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.

2003 GMC Sierra 1500 WT 4.8L V8 Tires & Wheels Change a Flat Tire
Change a flat tire

Learn where your spare tire and jack are located before you need it on the side of the road

2003 GMC Sierra 1500 WT 4.8L V8
2003 Chevrolet Suburban 1500 LT 5.3L V8 Transmission Fluid Check Fluid Level
Check transmission fluid level

Harsh downshifts? Slipping gears? You might be low on transmission fluid

2003 Chevrolet Suburban 1500 LT 5.3L V8
2003 Cadillac Escalade 6.0L V8 Brake Fluid Add Fluid
Add brake fluid

If your brake fluid is a little low, learn how to add some here. Ignoring a low level leads to big problems

2003 Cadillac Escalade 6.0L V8
2003 GMC Sierra 1500 WT 4.8L V8 Lights Reverse Light (replace bulb)
Replace reverse light

White light when you back up - yup, they burn out and you can replace them with bright LEDs

2003 GMC Sierra 1500 WT 4.8L V8
See all videos for the 2003 GMC Sierra 1500
Share on   Share on Twitter   Share on Facebook
Parts & Tools
panel poppers
tail light bulb housings
electric screwdrivers
led replacement bulbs
dielectric grease
hid kits
gloves
We may earn a commission from qualifying purchases as an Amazon Associate
Full list of part and tools
Video Description

The brake lights on your 2003 GMC Sierra 1500 illuminate when you hit the brake pedal and help prevent you from being rear ended by the cars behind you. Brake light bulbs grow dimmer over time and eventually burn out. See how to change the brake lights on your 2003 GMC Sierra 1500. The first step is to locate the brake light socket in your Sierra 1500. Remove the brake light socket and then replace the burnt out brake light bulb. When you replace the brake light bulb on your Sierra 1500, be careful not to touch the bulb directly with your fingers - the oil from your skin will cause the area that you touched to burn hotter than the rest of the bulb, which causes the bulb to burn out quicker.

If you are going to replace a bulb in your housing, it is a good idea to replace all of them. Not only will the lights on your Sierra 1500 be brighter, you decrease the likelihood you will need to change any of the bulbs again in the near future. A burnt out bulb in the taillight cluster of your Sierra 1500 is an excuse for a police officer to pull you over. Check your bulbs frequently and change burnt bulbs promptly.

  • Advance Auto coupon for
    20% off entire order: KIOSK20
Ask Mechanic