LUMBAR SEAT BLADDER NOT INFLATING OR DEFLATING

MODELS AFFECTED: 1988 SEVILLE TOURING SEDANS (STS)

Some 1988 Seville Touring Sedans (STS) may experience a condition where the hose leading from the lumbar bladder gets kinked and/or bent preventing the bag from inflating or deflating. This condition may be caused by an improperly routed hose from the lumbar bag. To repair this condition use the following procedure:

1. Remove seat and disconnect electrical connectors. Place seat on protected surface.

2. Remove seat finish panel and recliner harness, refer to Figure 1.

3. Remove seat back at hinges (three 13mm bolts - one on inboard, two on outboard), refer to Figure 2.

4. Separate "J" retainer at bottom on seat back cover, refer to Figure 3.

5. Remove hog rings across bottom of seat back cover and foam bun.

6. Separate foam and expose lumbar bladder, refer to Figure 4.

7. Inspect black lumbar hose from elbow connector and replace if it has any kinks or bends. Use similar 5mm inside diameter plastic tubing, or equivalent vacuum hose, and cut to fit.

NOTE: Point the elbow from the bag directly toward the inside of the car.

8. Reinstall bag into seat. Push adhesive on bag back into backing to secure.

9. Reinstall hog rings and "J" retainer.

10. Reinstall seat back, connectors. Replace in car.

For warranty purposes use Labor Operation T6331 at 1.2 hours for the right seat or T6332 at 1.2 hours for the left seat.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.