GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 385563  Size: SH
  1. Disconnect low brake fluid sensor electrical connector (2) from the sensor (1).

  2. Object Number: 400336  Size: SH

    Important: If the sensor is being replaced, remove and replace the sensor float from within the master cylinder reservoir.

  3. Using needlenose pliers, remove the sensor (2) from the reservoir (1) by squeezing the outer tangs together and removing the sensor by hand.

Installation Procedure


    Object Number: 400336  Size: SH
  1. Insert the low brake fluid sensor (2) and float sensor if removed, into reservoir (1) cavity.
  2. Ensure that the sensor is fully seated to the master cylinder by attempting to pull the sensor outward.

  3. Object Number: 385563  Size: SH
  4. Connect the low brake fluid sensor electrical connector (2) to the sensor (1).