Removal Procedure

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Compressing Master Cylinder Locking Tabs

Courtesy of GENERAL MOTORS CORP.

Disconnect the electrical connector from the fluid level sensor.
Use a needle nose pliers in order to compress the locking tabs at the opposite side of the master cylinder.

Fig 2: View Of Master Cylinder Fluid Level Sensor

Courtesy of GENERAL MOTORS CORP.

Remove the fluid level sensor.