Seeing your Silverado’s 3rd brake light not working? This issue is common and fixable.
The 3rd brake light, also known as the center high mount stop lamp (CHMSL), is a crucial safety feature. It helps ensure that drivers behind you can see when you are braking, reducing the chance of rear-end collisions. If your Silverado’s 3rd brake light fails, it can be a safety hazard.
Understanding why it isn’t working and how to fix it can save you time and stress. In this blog, we will explore the common causes of a malfunctioning 3rd brake light and provide simple, effective solutions. So, let’s dive in and get your Silverado back to peak safety performance.
Common Issues
Experiencing problems with your Silverado 3rd brake light can be frustrating. Understanding the common issues can help you troubleshoot and fix the problem quickly. Here are the most frequent causes:
Burnt-out Bulb
A burnt-out bulb is a common issue. The bulb can wear out over time. If your brake light is not working, check the bulb first. Replacing a burnt-out bulb is usually straightforward. Follow the vehicle manual for instructions.
Faulty Wiring
Faulty wiring can also cause the brake light to stop working. Over time, wires can become damaged or disconnected. Inspect the wiring for any signs of wear or disconnection. Secure any loose connections and replace damaged wires as needed.
Blown Fuse
A blown fuse is another frequent cause. The fuse protects the electrical circuit. If it blows, the brake light will not work. Check the vehicle’s fuse box and replace the blown fuse. Ensure you use the correct fuse type.
| Issue | Symptoms | Solution |
|---|---|---|
| Burnt-Out Bulb | Brake light does not turn on | Replace the bulb |
| Faulty Wiring | Intermittent or no light | Inspect and repair wiring |
| Blown Fuse | No power to brake light | Replace the fuse |
Credit: chevroletforum.com
Initial Inspection
Having trouble with your Silverado’s 3rd brake light? Start with an initial inspection. This step can help you identify common issues before they become major problems. Follow these simple checks to ensure your brake light works correctly.
Visual Check
First, inspect the brake light visually. Look for any cracks or damages on the lens. Ensure the light is secure and not loose. Check for any moisture inside the light housing. This can cause electrical issues.
Test Light Function
Next, test the light function. Turn on your vehicle and press the brake pedal. Ask a friend to observe the light or use a reflective surface to see the light yourself. If the light does not turn on, there could be a bulb or wiring issue.
Replacing The Bulb
Is your Silverado’s third brake light not working? Replacing the bulb is often the simplest solution. This guide will help you choose the right bulb and replace it step-by-step.
Choosing The Right Bulb
Before starting, ensure you have the correct bulb. Check your vehicle’s manual for the specific type. You can also visit an auto parts store. Ask for assistance if needed. Below is a table to help you:
| Model Year | Bulb Type |
|---|---|
| 2014-2018 | LED Bulb |
| 2007-2013 | W16W Bulb |
| 2003-2006 | 921 Bulb |
Step-by-step Replacement
- Gather Tools: You will need a screwdriver and the new bulb.
- Access the Brake Light: Open the tailgate to reach the brake light.
- Remove Screws: Locate and remove the screws securing the light cover.
- Remove the Cover: Gently pull off the cover to expose the bulb.
- Remove the Old Bulb: Twist and pull the old bulb out of its socket.
- Insert the New Bulb: Place the new bulb into the socket and twist to secure.
- Reattach the Cover: Position the cover back in place and secure with screws.
- Test the Light: Press the brake pedal to ensure the new bulb works.
By following these steps, you can easily replace your Silverado’s third brake light bulb. Ensure safety by testing the light before hitting the road.
Fixing Wiring Problems
One common issue with the Silverado 3rd brake light is wiring problems. Faulty wires can cause the light to stop working. Fixing these wiring problems is essential for safety. Let’s explore how to identify broken wires and repair them effectively.
Identifying Broken Wires
Start by inspecting the wires connected to the brake light. Look for visible damage. Cracks, frays, or breaks are common signs of wire damage. Use a multimeter to check for continuity. If there is no continuity, the wire is broken. Ensure your vehicle is turned off before handling any wires.
Repair Techniques
Once you identify the broken wire, cut out the damaged section. Strip the insulation off both ends of the wire. Twist the exposed wires together. Use a wire connector to secure the connection. Wrap the connection with electrical tape for extra protection. This prevents moisture from causing further damage. Test the brake light to ensure it’s working.
Addressing Fuse Issues
One common reason your Silverado’s third brake light might stop working is a blown fuse. Fuses protect the electrical circuits in your truck. If a fuse blows, it cuts the power to the circuit. This prevents damage. Fixing this issue involves locating and replacing the fuse.
Locating The Fuse Box
First, find the fuse box. In a Silverado, it is usually under the hood. Look near the driver’s side. You might also find one inside the cabin. Check the side of the dashboard or under the steering wheel. Refer to your owner’s manual for exact locations.
Replacing The Fuse
Once you find the fuse box, open it. Look for a diagram inside the cover. This will help you identify the brake light fuse. Use a fuse puller or needle-nose pliers to remove the fuse. Check if the metal strip inside the fuse is broken. If it is, the fuse is blown. Replace it with a new one of the same amperage. Close the fuse box. Test your third brake light. It should now work.
Testing The Fix
After fixing your Silverado’s third brake light, it’s important to test the repair. This ensures the light works properly. Follow the steps below to check your work and ensure safety.
Reconnect The Battery
Start by reconnecting the battery. Secure the terminal clamps tightly. This prevents any electrical issues. Double-check the connections for a secure fit.
Verify Light Operation
Next, turn on your Silverado. Press the brake pedal. Observe the third brake light. It should illuminate brightly. If it does, your fix is successful. If not, recheck your work.
Preventive Measures
Ensuring your Silverado’s third brake light is always functional is vital. Taking preventive measures can save you from unexpected issues and fines. Regular maintenance and using quality replacement parts can keep your brake light working smoothly.
Regular Maintenance
Regular maintenance is key to keeping your Silverado’s brake light in top condition. Check the light periodically to ensure it is working. Clean the light cover to remove dirt and grime. This helps the light shine brighter and makes it easier to see.
Inspect the wiring for any signs of damage. Loose or frayed wires can cause the light to fail. Fix any issues immediately to prevent further damage. Regular checks can help you spot problems early and avoid costly repairs.
Quality Replacement Parts
Using quality replacement parts is essential for long-term reliability. Cheap parts may save you money now, but they can fail quickly. Invest in parts from reputable manufacturers. These parts are designed to fit your Silverado perfectly and last longer.
Look for parts that come with a warranty. This can give you peace of mind if something goes wrong. Quality parts ensure your brake light functions correctly and keeps you safe on the road.
| Maintenance Task | Frequency | Notes |
|---|---|---|
| Check Light Functionality | Monthly | Ensure light turns on when brakes are applied. |
| Clean Light Cover | Quarterly | Remove dirt and grime for better visibility. |
| Inspect Wiring | Bi-Annually | Look for damage or loose connections. |
| Replace Bulbs | As Needed | Use quality bulbs for better performance. |
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When To Seek Professional Help
Experiencing issues with your Silverado’s third brake light? Seek professional help if a simple bulb replacement doesn’t fix it. Electrical problems or fuse issues may require expert diagnosis.
If your Silverado’s 3rd brake light stops working, it can be frustrating. Some issues you can fix yourself. But other times, professional help is needed. Knowing when to call a pro can save time and stress.Complex Electrical Problems
Electrical issues can be tricky. If you check the bulb and it’s fine, the wiring might be the problem. Loose wires or faulty connections need an expert’s touch. Electric systems are complex. Wrong repairs can cause bigger issues. A professional can test the circuits. They have tools to find hidden problems. They also know how to fix them safely. Don’t risk more damage. Electric repairs need skill and experience.Persistent Issues
Sometimes, a problem keeps coming back. You change the bulb, but it fails again. This can be due to deeper issues. Corrosion, worn-out parts, or even computer errors might be the cause. Professionals can diagnose recurring problems. They can also ensure long-term fixes. Persistent issues often need more than a quick repair. Experts can check the whole system. They ensure all parts work together smoothly. If you face ongoing problems, it’s time to seek help. “`
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Frequently Asked Questions
Why Is My Silverado 3rd Brake Light Not Working?
A blown fuse, faulty wiring, or a dead bulb can cause it.
How Do I Replace Silverado 3rd Brake Light?
Remove the screws, take out the old bulb, and insert a new one.
What Tools Do I Need To Fix Silverado 3rd Brake Light?
Screwdriver and replacement bulb are typically needed.
How Much Does It Cost To Replace Silverado 3rd Brake Light?
It usually costs between $10 and $30 for the bulb.
Can A Faulty 3rd Brake Light Cause A Ticket?
Yes, driving with a broken 3rd brake light can lead to a traffic ticket.
Conclusion
Fixing your Silverado’s third brake light is crucial for safety. Simple checks often solve the issue. Inspect the bulb, fuse, and wiring first. If problems persist, consult a professional. Regular maintenance can prevent future issues. Staying proactive ensures your truck remains safe.
Remember, a working brake light helps avoid accidents. Take action now to ensure your Silverado stays roadworthy. Safe driving starts with a well-maintained vehicle.