2021 Silverado Tail Light Wiring Diagram

If you’re looking for a 2021 Silverado tail light wiring diagram, you’ve come to the right place. In this article, we will provide you with a complete guide on how to wire your tail lights and brake lights in your brand-new 2021 Chevy Silverado. We’ll explain the process step by step, with diagrams and frequently asked questions to ensure you get it right the first time.

Step 1: Gather Your Tools and Materials

Before you start wiring your tail lights, you’ll need to gather some materials and tools. Here’s a list of everything you’ll need:

Materials Tools
Tail light wiring harness Wire stripper/cutter
Electrical tape Socket wrench set
Wire connectors Phillips head screwdriver
Fuse tester Flat head screwdriver
Fuses (if needed) Needle nose pliers

Make sure you have all these items before starting the installation process. It will make the job much easier and smoother.

Step 2: Remove the Old Tail Lights

The first step in the installation process is to remove the old tail lights from your Silverado. To do this, you’ll need to locate the screws that hold the lights in place. Typically, there are two screws per tail light. Use a socket wrench set to take out the screws and pull the tail light out of the socket.

Once the tail light is out of the socket, unplug the electrical connector from the back of the light. Be careful not to damage the connector or the wires.

Step 3: Install the New Tail Lights

Once you’ve removed the old tail lights, it’s time to install the new ones. Before you do, make sure to inspect the tail light wiring harness for any signs of damage or wear. If you notice any issues, replace the wiring harness before proceeding.

After inspecting the harness, connect it to the new tail light, making sure to match the colors of the wires. Secure the tail light in place with the screws you removed earlier.

Step 4: Wire the Tail Lights

Now it’s time to wire the new tail lights to your Silverado. To do this, you’ll need to connect the tail light wiring harness to the electrical system in your truck. Follow these steps:

  1. Locate the wiring harness under the truck bed near the rear bumper.
  2. Use a wire stripper/cutter to strip a small section of insulation from the tail light wiring harness wires.
  3. Insert the wires from the tail light wiring harness into the appropriate wire connectors in the truck’s wiring harness.
  4. Use a pair of needle nose pliers to crimp the connectors securely onto the wires.
  5. Wrap the connectors and wires with electrical tape to protect them from moisture and corrosion.

Repeat these steps for each tail light you are installing.

Step 5: Test the Tail Lights

After wiring the new tail lights, it’s important to test them to make sure they are working correctly. Turn on your truck’s headlights and check that the tail lights come on. Step on the brake pedal and make sure the brake lights illuminate.

If the tail lights or brake lights aren’t working correctly, use a fuse tester to check the fuses for those circuits. Replace any blown fuses and retest the lights.

Frequently Asked Questions

1. Can I install LED tail lights on my 2021 Silverado?

Yes, you can install LED tail lights on your 2021 Silverado. LED tail lights are more energy-efficient and brighter than traditional incandescent bulbs. However, make sure to check with your vehicle manufacturer to ensure the LED tail lights are compatible with your truck.

2. How much does it cost to install new tail lights on a Silverado?

The cost to install new tail lights on a Silverado varies depending on the type of lights you choose and whether you have a professional install them or do it yourself. On average, you can expect to spend anywhere from $50 to $500.

3. Can I install tail lights without a wiring harness?

No, you cannot install tail lights without a wiring harness. The wiring harness connects the tail lights to the electrical system in your truck and ensures that they work correctly. If your vehicle doesn’t have a wiring harness, you’ll need to purchase one before installing the new tail lights.

4. How long does it take to install new tail lights on a Silverado?

The installation time for new tail lights on a Silverado varies depending on your level of experience and whether you have the right tools. If you’re a beginner, it may take you several hours to complete the job. However, if you’re experienced and have the right tools, you can typically finish the job in less than an hour.

5. Do I need to replace my tail lights if they are cracked or damaged?

Yes, you should replace your tail lights if they are cracked or damaged. Cracked or damaged tail lights can allow moisture to get inside, which can damage the wiring and bulbs. Additionally, damaged tail lights can be a safety hazard, as they can make it difficult for other drivers to see your vehicle.

Following these steps and tips will ensure that your 2021 Silverado tail lights are installed and wired correctly, and that they work efficiently. Remember to always use the proper tools and equipment for the job, and if you’re unsure, contact a professional.