Subaru BRZ Brake Lights Not Working - Common Causes And Solutions

By Nick Marchenko, PhD

How to Fix Subaru BRZ Brake Light Fail: A Comprehensive DIY Guide

Diagnosing and fixing a Subaru BRZ brake light issue can be a daunting task. This guide aims to empower you with the knowledge to address this common issue, ensuring safety and compliance on the road.

Preliminary Checks

• Check the Brake Light Bulbs: Ensure they are correctly installed and functioning.
• Inspect the Fuse Box: Locate the fuse box under the dash and check for any blown fuses, particularly those associated with the brake lights.

Choosing the correct type and size of brake light bulbs is essential for your installation. Using the wrong bulbs can lead to malfunctions and even failures in the electrical system! To select the appropriate bulbs for your Subaru BRZ, please consult the chart below:

• 2022;
• 2020;
• 2019;
• 2018;
• 2017;
• 2016;
• 2015;
• 2014;
• 2013;

Diagnosing Electrical Shorts

Step 1: Narrow Down the Issue

• Unplug Headlights and Taillights: Disconnect the lights, replace the blown fuse, and then reconnect them one by one.
• Check for Modifications: Inspect areas of any modifications for improper installations or damaged wires.

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Step 2: Inspect Wiring

• Look for Exposed or Damaged Wires: Inspect the wiring for signs of wear or damage.
• Check Ground Connections: Ensure all ground points are secure and free of corrosion.

Step 3: Consider Professional Help

If you're not comfortable performing these steps, seeking professional help is advisable.

Preventive Measures

• Regular Inspections: Regularly check the brake light system to catch potential issues early.
• Be Cautious with Modifications: Ensure all electrical work is done correctly and professionally.
• Use Quality Replacement Parts: Always use high-quality, compatible parts for repairs or modifications.

By following this comprehensive guide, you can ensure your brake lights function correctly, keeping you and others safe on the road. Remember, consulting with a professional mechanic is always the best course of action when in doubt.

Nick Marchenko, PhD

Industrial Engineer & Automotive Content Specialist

Nick writes in-depth guides on car clubs, engine specs, vehicle ownership, and modifications, combining engineering knowledge with automotive passion.

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