Front Seat Backrest
FRONT SEAT BACKRESTPart 1:
Part 2:
Disassembly
WARNING:
- Always wear safety glasses when repairing an air bag supplemental restraint system (SRS) vehicle and when handling an air bag module. This will reduce the risk of injury in the event of an accidental deployment.
- Carry a live side air bag module with the air bag and tear seam pointed away from your body. This will reduce the risk of injury in the event of an accidental deployment.
- Do not set a live side air bag module down on the cover tear seam. This will reduce the risk of injury in the event of an accidental deployment.
- After deployment, the air bag surface can contain deposits of sodium hydroxide, a product of the gas generant combustion that is irritating to the skin. Wash your hands with soap and water afterwards.
- Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury.
- Side air bag modules with damaged covers must be replaced.
- Front seat backrest trim covers installed on seats with side air bags cannot be repaired. The front seat backrest trim covers are to be installed new. Cleaning is permissible.
- To reduce the risk of personal injury, do not use any memory saver devices.
NOTE:
- If a seat equipped with a supplemental restraint system (SRS) component is being serviced, the SRS must be depowered.
- The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault.
- If a side air bag deployment took place the seat backrest foam pad, trim cover, and side air bag module must be replaced. The backrest frame should be replaced if necessary.
- The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
- Driver side shown, passenger side similar.
All vehicles
1. Position the seat to access the fasteners.
2. Depower the SRS.
3. Remove the front seat backrest.
Police vehicles
4. Remove the head restraint locking clip (outboard side driver, inboard side passenger).
All vehicles
5. Pull the head restraint out to the end of travel. Press the release button and then pull the head restraint rod past its stop position.
Vehicles with seat side air bags
6. NOTE: If installing a new side air bag module, use new retaining nuts. If the same side air bag module is to be reused, then reuse the side air bag module nuts.
Remove the side air bag module nuts.
7. Position the side air bag module and deployment chute away from the mounting bracket and seat backrest frame.
8. Position the backrest trim cover and backrest foam pad forward enough to access the side air bag module.
9. Remove the side air bag module from the deployment chute.
- Pull the side air bag module mounting studs back through the deployment chute openings and remove the side air bag module from the deployment chute.
10. Disconnect the electrical connector and remove the side air bag module.
All vehicles
11. From inside the seat backrest, pinch the headrest guide pin ends and remove the sleeves.
12. Remove the backrest foam pad and trim cover.
- Separate the trim cover from the backrest foam pad.
Vehicles with power lumbar
13. Detach the lumbar motor bracket clip.
14. Detach the 2 lumbar support bracket clips and slide the lumbar assembly up and off.
Assembly
Vehicles with power lumbar
1. Slide the lumbar support bracket and lumbar assembly on lumbar seat frame until seated on the 2 clips.
2. Install the lumbar motor and attach the lumbar motor bracket clip.
All vehicles
3. Attach the trim cover to the backrest foam pad.
4. Align the backrest foam pad and trim cover to the backrest frame.
5. Install the head restraint sleeves.
Police vehicles
6. Install the head restraint locking clip onto the head restraint sleeve.
Vehicles with seat side air bags
7. Connect the side air bag module electrical connector.
8. WARNING:
- Inspect the mounting surfaces of the side air bag module for any foreign objects before installing the side air bag module. If any foreign objects are found, remove them. Failure to do so may result in personal injury, in the event of an air bag deployment.
- Inspect the side air bag deployment chute and the side air bag cavity, in the seat back pad, for any foreign objects. If any foreign objects are found, remove them. Failure to do so may result in personal injury in the event of an air bag deployment.
- Before installing the side air bag module into the deployment chute, check it for damage and foreign objects. If the air bag module is damaged, install a new module. If any foreign objects are found, remove them. Failure to do so may result in personal injury, in the event of an air bag deployment.
- If the air bag cover has separated or the air bag material has been exposed, install a new side air bag module. Do not attempt to repair the air bag module. Failure to do so may result in personal injury in the event of an air bag deployment.
- Check the side air bag deployment chute for damage. The deployment chute must not be repaired. If there is any damage to the deployment chute, a new seat back trim cover and deployment chute must be installed as a unit.
- If the air bag deployment chute is not correctly positioned, the side air bag may not deploy correctly.
NOTE: The alignment pin will only allow the side air bag module to be installed to the seat backrest mounting bracket one way.
Position the side air bag module into the deployment chute.
- Position the side air bag module into the deployment chute with the alignment pin offset to the top and the electrical connector to the bottom of the seat backrest. This will position the alignment pin correctly when the side air bag module and deployment chute are mounted to the backrest frame mounting bracket.
- The side air bag module mounting studs and alignment pin must come through the deployment chute stud openings.
9. WARNING:
- Inspect the mounting surfaces of the deployment chute and the seat backrest frame mounting bracket for any foreign objects before installing the side air bag module/deployment chute assembly. If any foreign objects are found, remove them. Failure to do so may result in personal injury, in the event of an air bag deployment.
- Front seat backrest trim covers installed on seats equipped with side air bags cannot be repaired; they are to be installed new. Cleaning is permissible.
Install the side air bag module onto the front seat backrest frame mounting bracket. Install the nuts.
- The deployment chute should not have any wrinkles or folds where it contacts the seat back frame mounting bracket.
- Tighten to 7 Nm (62 lb-in).
10. Reposition the backrest foam pad and trim cover to the backrest frame.
All vehicles
11. Install the head restraint.
12. Install the front seat backrest.
13. Repower the SRS.