GM Service Manual Online
For 1990-2009 cars only

Warning: Refer to Brake Fluid Irritant Warning in the Preface section.

Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution in the Preface section.

Removal Procedure

  1. Clean the caps and connection to keep contamination out of reservoir.
  2. Remove the brake fluid from the master cylinder reservoir.
  3. Remove the connector.

  4. Object Number: 376943  Size: SH
  5. Remove the fluid level switch from the reservoir. Use a pick or a thin tool in order to reach into the slot on the bottom of the reservoir. Compress the tabs while pulling out on the sensor.

Installation Procedure

  1. Install the fluid level switch into the reservoir until the tabs click.

  2. Object Number: 376943  Size: SH
  3. Install the connector.
  4. Fill the master cylinder with brake fluid. Refer to Master Cylinder Reservoir Filling.
  5. Bleed the brake system. Refer to Hydraulic Brake System Bleeding.