How to Replace the Third Brake Light Bulb in a 2011-2023 Chrysler 300

By Nick Marchenko, PhD

Greetings, esteemed automotive enthusiasts! Today, we delve into the realm of DIY automotive maintenance, specifically focusing on the illustrious 2011-2023 Chrysler 300. Our mission? To replace the high-mount brake light bulb, a task that might seem daunting but is, in fact, quite manageable with a bit of patience and the right tools.

Firstly, let's address why one might undertake this venture. While the LED bulbs used in these models are designed for longevity, the unexpected can always occur. Be it damage or a rare malfunction, replacing the high-mount brake light bulb ensures your vehicle remains a beacon of safety on the roads.

Required Tools and Materials

• T20 Torx screwdriver
• 10mm socket and ratchet
• New LED brake light bulb (ensure compatibility)
• Patience and a steady hand

Step-by-Step Guide

Accessing the Brake Light

The adventure begins with a simple act: popping the trunk. This is where the magic happens, providing us with access to the vehicle's inner sanctum. Once inside, our gaze is drawn upwards to the high-mount brake light, nestled like a crown atop the rear.

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Removing the Interior Membrane

With the trunk open, you'll notice the interior lining or membrane that shields the light's fastenings. This is secured with clips that require a gentle yet firm touch to release. A T20 Torx screwdriver comes into play here, acting as our key to unlocking this puzzle.

Disengaging the Electrical Connector

Within the cavernous depths of the trunk lies our quarry's lifeline: the electrical connector. This tether not only powers our high-mount brake light but also connects to the trunk's actuation mechanism. Carefully disconnecting this ensures we can proceed without hindrance.

Removing the Old Light

Armed with a 10mm socket, we tackle the bolts securing the light. A gentle nudge here, a careful pull there, and the light should free itself from its perch. Beware the weather stripping, for it clings like a barnacle to a ship's hull, requiring a bit of finesse to navigate.

Installing the New Bulb

With the old light removed, we stand on the threshold of renewal. The new LED bulb, a beacon of progress, is ready to be installed. Align it carefully, ensuring the actuation button is positioned correctly, signaling a return to functionality and safety.

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Reassembly and Testing

The reassembly is but a reversal of our disassembly, a journey back to wholeness. Secure the light with the 10mm bolts, reconnect the electrical lifelines, and reposition the interior membrane, ensuring each clip finds its home. A test of the brake light confirms our success, a luminous affirmation of our efforts.

In the spirit of comprehensive car care, consider exploring our other DIY guides, such as Replacing the Trunk Actuator and Button, Windshield Washer Pump Replacement, or perhaps the nuanced art of Ceramic Coating Your Chrysler 300.

Today's journey through the intricacies of brake light replacement serves as a testament to the joys and challenges of automotive maintenance. May your hands remain steady, your tools faithful, and your Chrysler 300 ever luminous on the path ahead. Safe travels, dear reader, until our next automotive adventure.

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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