Lumbar Bladder Replacement
WARNING: This page is about a different car, the 2007 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
The lumbar pump, bladder and control module are separate units that are attached to each other by a wire harness and a hose. They are supplied and replaced as an assembly. The lumbar pump is contained in a vinyl pouch under the seat and is tie strapped to the seat adjuster torque tube. The attached control module is contained in a vinyl pouch and is secured with J strips to the bottom of the seat support springs. If the bladder needs to be replaced the unit must be replaced as a lumbar subsystem. Refer to Seat Lumbar Sub System Replacement .