Brake Fluid Level Sensor Chevrolet Traverse 3.6L 2009-2017 Location and Replacement

In this video, I show you the exact location and the complete step-by-step process to replace the brake fluid level sensor on a 2009-2017 Chevrolet Traverse equipped with the 3.6L V6 engine.

The brake fluid level sensor is located on the driver’s side of the engine bay, clipped directly into the bottom side of the clear plastic brake fluid master cylinder reservoir, which sits right in front of the brake booster. Knowing how to carefully unclip this electronic sensor without cracking the plastic reservoir or causing a major brake fluid leak will save you time and keep your braking system safe during this quick DIY fix.

Common Symptoms of a Bad Brake Fluid Level Sensor:

• The red “BRAKE” warning light stays permanently lit or flashes randomly on the dashboard, even when the fluid reservoir is completely full and the parking brake is fully released
• Intermittent activation of the traction control, stability control (StabiliTrak), or ABS warning lights, as these safety systems rely on accurate fluid level data
• The vehicle’s driver information center continuously displays a “Low Brake Fluid” warning message
• Visible brake fluid leaking from the sensor mounting port or pushing through the electrical connector pins
• Diagnostic trouble codes (DTCs) related to the brake fluid level switch circuit stored in the computer modules

Safety First

Always prioritize safety before working on any part of your vehicle’s braking system. Make sure the vehicle is safely parked on a flat, level surface, the emergency brake is securely engaged, and the ignition is turned completely off with the keys removed. Brake fluid is highly corrosive and will instantly destroy your vehicle’s paint; always keep clean shop rags handy and wash off any accidental spills with water immediately. Protect your eyes and skin by wearing safety glasses and fluid-resistant nitrile gloves, and maintain your full focus throughout the task.

Need Help? Ask an Expert

I am an experienced mechanic, and I am here to help you guide your vehicle projects to a successful finish. If you hit a snag trying to release the bottom locking tabs without breaking the brittle plastic reservoir tabs, aren’t sure if your dashboard light is being caused by the sensor or a sticking parking brake switch, or are dealing with a tricky electrical breakdown, leave a message in the comments below. Let me know what you are running into, and I will help you solve your car’s problem!