GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 161521  Size: SH

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Disconnect the electrical connector from the fluid pressure alarm switch.
  3. Remove the fluid pressure alarm switch from the vehicle by rotating the switch in a counter clockwise direction.

Installation Procedure

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.


    Object Number: 161521  Size: SH
  1. Install the fluid pressure alarm switch to the vehicle.
  2. Tighten
    Tighten the fluid pressure alarm switch to 12 N·m (106 lb in).

  3. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .