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DIY: How to “Fix” your Brake Light or Tail Light on a Truck


Did you get pulled over? Or receive an infraction for a non-operating rear tail-light? Stay tuned! I'll show you how to fix and replace your old bulbs in a few easy steps.

Importance of a working Brake / Tail Light:

Rear tail lights are usually one of the most neglected car maintenances to check. Stay on top of it and you won't have to worry about a blown-out light bulb. Keep in mind you increase your chances of getting into an accident when your lights are out. Tail lights are the way vehicles can communicate with other vehicles. When you brake, you are alerting the other vehicles of a change in your speed. The traffic behind your vehicle cannot predict when you will slow down much less come to a full stop if your lights are not working. This is why it is so important to ensure they are always functioning properly.

When was the last time you checked your right and left directional lights? Now, would be a good time to ensure they are working correctly. You can prevent an accident from occuring and save yourself from receiving a costly infraction. Keep in mind when you drive at night and our tail lights are not working you aren't as visible to traffic. Prevention is the key to safety.

Instructions on Brake / Tail Light Replacement:

Before you replace the light bulb, ensure that the bulb is the issue. You can take a few moments to check your fuses. If you need assistance checking the brake/tail light fuse be sure to check out our video on  How to find / replace a Blown fuse.

Check the Owners Manual to find the replacement bulb information before you begin.

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Step 1: Bring down the tailgate of the truck. Once the tailgate is in the down/open position locate the screws/bolts that hold down the rear light cover. Now, that you have located the screws/bolts use a phillips screwdriver/socket ratchet to take them out.

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Step 2: Take off the rear light cover by tugging at it. You can pull it from the top to release it from its location. If the cover is stuck you can use a flathead screwdriver at the top to loosen the cover from the truck.

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Step 3: Be sure to have the new light bulb at hand for this step. You can pull the old light bulb out and insert the new light bulb into the same slot by pushing it into place.

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Step 4: Put back the rear light cover by aligning all four studs with the holes in the compartment. Push the cover into the truck until you hear it click into place.

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Step 5: The screws/bolts need to be placed back into place.

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Step 6: Close the tailgate. That's it. You did it!

Now that you have replaced the tail light bulb or brake light bulb, it's time to test it out. Have someone assist you in testing out the bulb. All you have to do is turn on the vehicle and have a friend visually inspects all of the rear lights. Secondly, we will test out the brake lights. Apply pressure to the brake pedal and have your assistant inspect the brake lights. Lastly, we will check the left and right directionals. For this step just use your left directional and check the left rear light and then do the same for the right directional; just turn on the right blinker. If any of the above tests failed and you have replaced all the bulbs refer back to our How to Replace Fuses Video. There could be a faulty fuse that is not allowing the electric current to flow properly.

Whether you are changing the rear tail/brake light of a Chevy Silverado or a Dodge Ram the instructions are the same, just be sure to match the factory original bulbs. Be sure to watch our other DIY car maintenance videos!



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