How to Fix Chevrolet Cruze Brake Light Fail - Complete DIY Guide

By Nick Marchenko, PhD

When your Chevrolet Cruze experiences a brake light failure, it's a safety concern that needs prompt attention. This DIY guide, inspired by the detailed and safety-focused approach of Ralph Nader, is designed to help you troubleshoot and fix the issue.

Understanding the Problem

• Common Symptoms: Tail lights not working, brake lights not coming on, but other lights such as turn signals, license plate light, and backup lights functioning.
• Potential Causes: Fuse issues, faulty brake pedal position sensor, wiring problems, and defective brake pedal switch.

Step-by-Step Solution

Inspect the Brake Pedal Position Sensor

Check the wiring connected to the brake pedal position sensor. Sometimes, this wiring can become disconnected or damaged, leading to brake light failure.

Examine Fuses

• Inspect the fuses in the dashboard and under the hood. A blown fuse can result in brake light malfunction.
• Refer to your owner's manual for the exact location and specification of these fuses.

Tip: Don't just visually inspect the fuses; sometimes a fuse might look intact but is actually faulty. Consider replacing with a new fuse as a test.

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Check the Brake Pedal Switch

• The brake pedal switch, which activates the brake lights when the pedal is pressed, might be malfunctioning.
• To test, locate the switch near the brake pedal and check for any obvious signs of damage or wear.
• In some cases, replacing the brake pedal switch can resolve the issue.

Inspect the Bulbs

Although it seems basic, always check the brake light bulbs. Replace them if necessary, even if they appear to be in good condition.

You can find what brake light bulbs you need for your Chevrolet Cruze here:

• 2019;
• 2018;
• 2017;
• 2016;
• 2015;
• 2014;
• 2013;
• 2012;
• 2011;

Examine Wiring and Connectors

• Inspect all wiring related to the brake lights, including any connectors and harnesses.
• Look out for any signs of wear, tear, or improper modifications (like a poorly installed trailer connector).

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Consider Additional Issues

If your Cruze has issues with shifting out of park or the trunk not opening, these could be related to the brake light problem. It suggests a more complex electrical issue, possibly involving the car's safety interlocks.

When to Seek Professional Help

If you're not comfortable with electrical diagnostics, or if the problem persists after trying these steps, it's wise to consult a professional. A certified technician can provide a more thorough inspection and repair.

Safety First

Always prioritize safety when working on your vehicle. If brake lights are not functioning, it's unsafe to drive. Address this issue promptly to ensure your and others' safety on the road.

Remember, regular maintenance and attention to your vehicle's electrical system can prevent many such issues. Stay vigilant and drive safely!

See Also:

• How to Replace a Blown Fuse in a Chevrolet Cruze;
• How to Diagnose & Fix Bad Chevrolet Cruze Coil Pack;
• Chevy Cruze Sensor Fault;

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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