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 sensor (1).

  2. Object Number: 400336  Size: SH
  3. Using needlenose pliers, remove sensor from reservoir by squeezing the outer tangs together and removing sensor by hand.
  4. Important: If sensor is being replaced, remove and replace the sensor float that resides within the master cylinder reservoir.

Installation Procedure


    Object Number: 400336  Size: SH
  1. Insert the low brake fluid sensor and float sensor if removed into reservoir cavity ensuring it is fully seated. Sensor should "snap" into position as the tangs engage.

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