GMC Sierra 2500 Tail Lights

When it comes to replacement or upgraded taillights for the GMC Sierra, there are a variety of options to choose from. Whether you need a specific bulb or a chrome housing as well, take your time when sorting through this comprehensive selection of taillights to make sure you pick the right parts for your GMC Sierra 2500.

What are the Sierra 2500 taillight types?

Considered the gold standard for vehicle lighting among automotive enthusiasts, high-intensity discharge, also known as HID, taillights use tungsten electrodes and gas discharge to create an incredibly powerful blaze. HID bulbs are rated to last about 2,000 hours. Light-emitting diodes, or LEDs, are a futuristic technology that use up a minuscule amount of electricity and take up a tiny amount of space. You could fit a dozen high-powered LED bulbs in the palm of your hand, making this an immensely versatile technology. Most impressively, LED lights are rated to last for 50,000 hours of continuous use.

What are the advantages of smoked taillights?

While smoked taillights produce the same amount of illumination as their conventional cousins, these innovative brake indicators make use of a lightly tinted film to appear darker on the road. Set your GMC Sierra apart from the herd with the covert look imparted by smoked taillights.

How do you replace the taillight assemblies?

When upgrading to smoked or LED taillights, replacing both taillight assemblies is often necessary. Removing the old assemblies and installing replacements in your GMC Sierra is a simple task that requires basic shop tools and should take less than an hour to complete.

  1. Turn off the engine and open the tailgate.
  2. Pick a side and remove the two Torx bolts at the edge of the bed that hold the taillight assembly in place.
  3. Wiggle and pull the taillight assembly until it comes free from your GMC Sierra.
  4. Disconnect the electrical harness and discard the old assembly.
  5. Position the new assembly into place and connect the electrical harness. Pop the assembly into place and insert the two Torx bolts to complete installation. Repeat these steps for the opposite side.
How do you replace the third brake light?

The third brake light serves the critical function of displaying your decrease in velocity to the drivers of tall vehicles, like semi-trucks, that can’t see your taillights. Also called the center high mount stop light, replacing this part on your GMC is easy and should take less than half an hour to complete.

  1. Turn off the engine and climb into the truck bed.
  2. Remove the two screws, usually hex, that hold the center high mount stop light assembly in place.
  3. Pull the assembly a short distance away from the vehicle and disconnect the electrical harness.
  4. Position the new assembly into place and connect the electrical harness.
  5. Push the new assembly into the cavity and secure it with the two screws to complete installation.