The lumbar bladders and bolster bladders are serviced as one lumbar/lateral bladder system. The bladder system is serviced separate from the module assembly. The bladder service part is supplied with the necessary connector fittings. The bladder to module hoses are labeled #3, #4, and #5 to aid in assembly.

1. Raise the seat to the full up position.
2. Remove the seat. Refer to Seat Replacement (Power) .
3. Remove the seat cushion cover and pad. Refer to Seat Cushion Trim Cover and Pad Replacement .



4. Unhook the J strip attaching the bottom of the seat back insert pillow.
5. Remove the two fir tree fasteners attaching the upper sides of the insert pillow.
6. Unzip the upper insert pillow zipper.
7. Remove the seat back insert pillow.
8. Remove the four lower fir tree fasteners attaching the seat back cover.
9. Peel the trim cover from the bolsters and reposition the trim up over the top of the seat back. (trim will be inside out).
10. Peel the foam pad from the bolsters and reposition to expose the lumbar system.



11. Remove the lumbar/lateral bladder system from the seat back.



12. Remove the control module J strips from the seat support wires.
13. Reposition the control module to the top of the seat support wires. (it is not necessary to remove the lumbar pump).



14. Cut the three hoses (4) connecting the control module to the lumbar/lateral bladders 75 mm (3 in) from the control module.



15. Remove the tie strap attaching the hoses to the seat frame.
16. Remove the lumbar/lateral bladder assembly.

1. Position the lumbar/lateral support bladders to the seat back inserting the tabs into the seat back.
2. Route the hoses through the pivot area and tie strap them to the seat frame under the seat back adjuster.
3. Connect the seat switch to the harness.
4. Connect power to the seat.

It may be necessary to position the seat in the vehicle.

5. Operate the upper lumbar control and use the procedure in step eight to connect the hose that pressurized to the bladder hose labeled #3 .
6. Operate the lower lumbar control and use the procedure in step eight to connect the hose that pressurized to the bladder hose labeled #4.
7. Operate the bolster control and use the procedure in step eight to connect the hose that pressurized to the bladder hose labeled #5.



8. Using Loctite™ 406, or equivalent, glue the module hoses to the fittings on the bladder hoses (4).

8.1.	Position the hose so it is just over the edge of the barb on the attaching fitting.

8.2.	Apply the adhesive completely around the fitting.

8.3.	Quickly push the hose the rest of the way onto the fitting.

9. Install the control module to the seat support wires with the J strips.
10. Disconnect the seat electrical connector and remove the seat from the vehicle (if reposition inside the vehicle in step 4.
11. Install the seat cushion cover. Refer to Seat Cushion Trim Cover and Pad Replacement .



12. Install the seat back foam pad over the bolsters.
13. Install the seat back cover over the bolsters.
14. Attach the cover and the bladder assembly with the four lower fir tree fasteners.
15. Zip the upper seat back zipper closed.
16. Tuck the cover over the corners of the hinges.
17. Install the insert pillow. Refer to Front Seat Back Trim Replacement .



18. Install the seat. Refer to Seat Replacement (Power) .