How to Make Fog Lights Come on With Headlights Silverado

Fog lights provide extra visibility when driving in foggy or rainy conditions. They emit a lower and wider beam of light, which helps to illuminate the road in front of you without dazzling oncoming drivers. With fog lights so beneficial, many car owners wonder how they can make their Silverado’s fog lights come on with the headlights.

How to Make Fog Lights Come on With Headlights Silverado

The advantages of making fog lights come on with headlights in a Silverado are numerous. Firstly, it increases visibility for the driver when driving in low-light or foggy conditions. It also adds a stylish touch to the car’s exterior design, as the fog lights will be illuminated at all times when your headlights are on. You can find step-by-step instructions on how to make fog lights come on with headlights silverado in this blog article.

Tools You Will Need

  • A Phillips head screwdriver
  • Standard pliers
  • Wire strippers
  • Electrical tape
  • Crimp connectors
  • Connector pins
  • Socket wrench set
  • Light switch replacement harness
  • Two fog light housings and bulbs
  • Automotive fuse tester

Step-by-Step Processes for How to Make Fog Lights Come on With Headlights Silverado

Step 1: Inspect the Headlight Switch

Making fog lights come on with the headlights of a Silverado pickup truck begins by inspecting the headlight switch located on the dashboard. On this switch, the ‘AUTO’ position should be selected so that when you turn on your headlights, they will automatically activate the fog lights.

Step 2: Check Power Supply to the Fog Lights

Once the headlight switch is in ‘AUTO’ mode, you must check the fog lights’ power supply. If no power is present, your fog lights will not come on with the headlights, so these wires must be connected properly.

The next step in the process is to examine the fog lamp connector for any damage or loose wires which could be causing a power interruption. If there is any evidence of damage, then this needs to be addressed before proceeding further.

Step 3: Check Headlight Relay

To make sure that your headlights and fog lights are working properly, it is important to check the headlight relay. If this part is not functioning correctly, your fog lights will not come on when the headlights are activated.

Verifying that the headlight circuit fuse is in good condition and not blown out or otherwise damaged is also important. Without this fuse, the power supply to the fog lights will not be adequate, and they won’t come on with your headlights.

Important to Check the Headlight Relay

Step 4: Inspect Fog Lamp Socket

After checking the headlight relay and verifying the fuse, inspect the fog lamp socket to ensure it is connected properly. If there are any loose wires, these need to be secured before turning on the fog lights.

For your fog lights to come on with your headlights, there must be a good connection between the fog lamp ground and the bumper. If this connection is not secure, you will need to reattach or replace it altogether for the power supply to be adequate.

Step 5: Turn on the Headlights

Once you have examined all the components and verified that everything is connected correctly, it is time to turn on the headlights and see if your fog lights also come on. If they do not, there may be an issue with one or more of the components, which must be addressed before proceeding.

If, after turning on the headlights, your fog lights still do not come on, then it is likely that one or more of the components are faulty and need to be replaced before they will function correctly. It is important to ensure you replace the correct part for things to work properly.

Step 6: Test the System

After all the components have been replaced and everything is connected properly, it is time to test the system and ensure that the fog lights come on with the headlights as expected. This will ensure your pickup truck is functioning properly and provide peace of mind when driving at night.

By following these steps, you can ensure that your fog lights come on with your headlights so that you can drive safely at night. Proper maintenance of the components involved in this process is essential to ensure everything functions correctly and provides adequate power for the fog lights to come on when needed.

It is Time to Test the Fog Lights

Safety Tips for How to Make Fog Lights Come on With Headlights Silverado

  1. Read and follow the instructions in your owner’s manual carefully. This will ensure that you are performing the task correctly and safely.
  2. Be aware of your surroundings when working on your fog lights – they can be dangerous if not handled properly. Wear protective eyewear when necessary, and keep any flammable objects away from the area.
  3. Disconnect the negative cable on your car battery before beginning work. This will prevent you from receiving an electric shock.
  4. Inspect all wiring and connections to ensure they are secure and not showing signs of wear or corrosion. If any are found, replace them with new parts before continuing.
  5. Make sure to use the correct bulbs for your fog lights. Using a bulb not designed specifically for your car can be dangerous and cause permanent damage.
  6. After you have finished wiring and reassembling everything, test the headlights carefully before using them on the road. This will ensure that everything functions properly and safely.

Following these safety tips will help you make fog lights come on with headlights successfully and safely in your Silverado.

Are There Any Potential Safety Issues When Attempting to Wire the Fog Lights? 

When attempting to wire fog lights to your Silverado’s headlights, there are some potential safety issues that you should consider. You must follow all of the instructions carefully and ensure that all the wiring connections and components are properly installed before testing them out. Additionally, if your vehicle has any airbags, then it is essential to disconnect them for your safety while working on the wiring. 

Vehicle Has Any Airbags Then It is Essential

It is also important to double-check that all wires are properly connected and have no exposed wires or connections that could create a fire hazard. Furthermore, using a circuit tester when taking on any electrical projects in your car is always recommended due to the potential risk of short circuits and fire hazards. Following these guidelines ensures that the wiring of your fog lights is safe and successful.

Are There Any Different Methods for Wiring in Fog Lights Other Than Making Them Come On With the Headlights?

Yes, it is possible to wire fog lights in different ways than making them come on with the headlights. The most common method of wiring fog lights is through a switch or relay that allows you to turn them on and off from inside the vehicle manually. This allows you to choose when and where you want your fog lights to be used without having them automatically come on whenever the headlights are switched on.

Wiring fog lights in this way requires running a wire from the switch or relay to the back of the fog light and then connecting it with the power source. It also involves wiring it into the fuse box if you want a dedicated circuit for your fog lights. This method is ideal for people who want more control over when their fog lights are used.

Are There Any Benefits to Having Fog Lights That Come On With the Headlights? 

Yes. Having fog lights with headlights provides more visibility when driving in low-light conditions. Fog lights have a wide beam pattern which illuminates more area than a typical headlight, allowing you to see further and better in foggy or rainy conditions. It also helps other drivers with the visibility of their vehicles since fog lights are brighter. Additionally, fog lights will last longer than regular headlights since they are designed to be used in lower light conditions. To make your fog lights come on with the headlights in a Silverado, follow the steps below:

  • Find the fuse box under your vehicle’s hood and locate the fuse labeled “Fog Lamp” or “Lamps.”
  • Remove the fuse and inspect it for any damage or corrosion
  • If the fuse is in working order, replace it with a new one that is rated for your vehicle model
  • Once the new fuse is installed, turn on your headlights and verify that the fog lights are working properly

By following these simple steps, you can make your fog lights come on with the headlights in a Silverado. Doing this will help increase visibility during low-light driving conditions, helping to reduce the risk of accidents.

Further and Better in Foggy or Rainy Conditions


Wiring fog lights to your Silverado headlights is fairly easy. It involves connecting the power wire from the fuse box, running it through an inline fuse relay, and attaching the wires to the corresponding terminals on the switch, bulbs, and headlights. With just a few basic tools and parts, you can have your fog lights come on with your headlights in no time. This article has been beneficial for learning how to make fog lights come on with headlights silverado. Make Sure the preventive measures are followed chronologically. 

Photo of author

Dave Parker

Hi there, my name is Dave. I am 32 years old guy and had a fascination with lighting ever since I knew about LED lighting and strip lights. I have completed my bachelor's degree in electrical engineering and can understand the often complex topics in the field of LED technology. Lightow is where I share my findings, opinions, and recommendations. I hope this tips will enlighten you to the wonderful world of lighting!

Leave a Comment