Bolster Support System

The bolster support system consists of:
- Lumbar/bolster support switch.
- Two front seat bolster pad adjusters.
- Front seat back pad adjusting pump.
- One-way check valve.
- Front seat back pad adjusting hose.

During the inflate mode, the front seat back pad adjusting pump pumps air through a hose to the one-way check valve where air is routed through a separate hose to the front seat bolster pad adjusters located in the front seat back cover and cushion. The front seat bolster pad adjusters actuate a spring-loaded guide and slide mechanism which articulates the bolster inward when inflated.

When deflated, the one-way check valve opens to deflate the front seat bolster pad adjusters. The spring-loaded bolster mechanism then returns to its retracted position. In this mode, the front seat back pad adjusting pump does not operate.