AC9

The LH and RH adaptive seat system each consist of the lumbar switch, the adaptive lumbar module, a pump motor, and an air bladder in the seat cushion and seat back. It is a power inflate/deflate pneumatic system used for controlling seat comfort by inflating or deflating an air cell within the seat. The adaptive seat system will only operate when the ignition switch is in the ON position.

Manual Control
The lumbar support in the seat back may be adjusted manually. To increase the support, move the lumbar switch OUT. To decrease the support, move the lumbar switch IN. The adaptive lumbar module will respond the inputs by either adding air to the bladder or releasing air from the bladder in the seat back.

Adaptive Control
To have the adaptive seat adapt to the occupant, move the lumbar switch up in the AUTO/ON position. The adaptive lumbar module will automatically adjust the support by supplying a pulse width modulated signal to the lumbar pump motor to add air to the bladders or release air from the bladders. The adaptive lumbar module will check the position of the occupant every 4 minutes. If the occupant has moved, the adaptive lumbar module will then automatically adjust again.

To turn off the automatic adjustment, move the lumbar switch down in the OFF position. The adaptive lumbar module will release all air from the bladders.