Lumbar Support Components
WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
The driver and front passenger pneumatic lumbar support system each consist of the following components:
- Seat Lumbar support switch
- Seat lumbar adjuster valve assembly
- Seat lumbar support pump
If equipped, the passenger seat block diagram is identical to the driver seat.
| Callout | Component Name |
|---|---|
| S65D | S65D Seat Lumbar Support Switch - Driver |
| Q51D | Q51D Seat Lumbar Support Valve Assembly - Driver |
| A14D | A14D Seat Lumbar Support Pump - Driver |