Lumbar Support Description and Operation (With W2E): Notes
WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
The memory lumbar/bolster system uses air bladders to adjust various aspects of the seat configuration to meet an occupant's preference. It also allows these adjustments to be stored to a memory position along with the seat position data.
Some vehicles may also be equipped with dynamic mode control which gives the chassis subsystem the ability to request an automatic adjustment to the seat's bolster support depending on vehicle driving conditions.
The various seat adjustments and functionality which may be possible include:
- Lumbar support - forward and rearward
- Lumbar support - up and down
- Seat back side bolster
- Upper shoulder support
- Back massage functionality
The components of the system include:
- LIN based seat switch
- Bolster memory control module
- Radio
- Information display
- Seat memory control module
- Seat air pump motor
- Air bladders