Seat Backrest - Front
SEAT BACKREST - FRONTWorldwide Diagnostic System (WDS):
Special Tool(s)
Front Seat Backrest (Part 1):
Front Seat Backrest (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 back trim covers installed on seats equipped with side air bags cannot be repaired, they are to be replaced. Cleaning is permissible.
- To reduce the risk of personal injury, do not use any memory saver devices.
NOTE:
- If a side air bag deployment took place the backrest foam pad, backrest trim cover and side air bag module must be replaced. A new backrest frame should be installed if necessary.
- 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 restraint control module (RCM) fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault.
- The supplemental restraint system (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.
- The manual recliners and power recliners are serviced as part of the backrest frame.
All seats
1. Remove the front seat and depower the supplemental restraint system (SRS).
2. Remove the front seat backrest.
3. Remove the head restraint.
1 Using an appropriate tool, push in the hole while lifting up and release the head restraint from the head restraint guide.
2 Push in on the head restraint guide release tab and remove the head restraint.
4. Remove the plastic rivets attaching the backrest trim cover to the inboard and outboard recliners.
5. CAUTION: Use care when separating the seat back trim cover from the hook and loop strip, or the hook and loop strip can be torn from the backrest foam pad.
Release the backrest trim cover lower J-clip, hook and loop strips and invert the trim cover to the first row of hog rings.
6. Remove the first row of hog rings.
7. Release the hook and loop strips, invert the trim cover and remove the second row of hog rings.
8. NOTE: The head restraint guides are not interchangeable. Note location for installation.
Reach up into the backrest and squeeze the head restraint guide ends together to release. Pull the 2 head restraint guides out of the backrest frame.
9. Remove the backrest trim cover.
Heated seat
10. For power driver seat, disconnect the backrest heated seat mat electrical connector.
- If necessary, remove the backrest heated seat mat from the backrest foam pad.
All seats
11. Separate the backrest foam pad from the backrest frame.
12. NOTE: Note the side air bag module wire harness routing for assembly.
Release the side air bag module wire harness pin-type retainers, remove the bolts and the side air bag module with wire harness.
Seat with manual lumbar
13. Release the 2 manual lumbar spring clips from the backrest frame and remove the manual lumbar.
Seat with power lumbar
14. Remove the power lumbar adjust assembly.
1 Disconnect the power lumbar adjust assembly motor electrical connector.
2 Release the 2 power lumbar adjust assembly lower pin-type retainers to the backrest frame.
3 Slide the power lumbar adjust assembly rods out of the backrest frame at the top and remove the power lumbar adjust assembly.
Seat with power recline
15. Remove a one-way push clip from the recliner shaft and remove the recliner shaft.
16. Disconnect the electrical connector, remove the screw and the power recline motor.
Assembly
Seat with power recline
1. NOTE: The recliners are synchronized. Do not rotate the recliner shaft until completely installed.
Install the recliner motor.
- Position the recliner shaft through the inboard power recliner, power recline motor and outboard recliner.
- Slight turning of the recliner shaft may be necessary.
- Install a new one-way push clip at each end of the recliner shaft
- Turn the power recline motor so the mounting hole lines up with the bolt hole in the inboard power recliner.
- Install the power recline motor bolt.
- Connect the power recline motor electrical connector.
Seat with power lumbar
2. Install the power lumbar adjust assembly.
- Slide the power lumbar adjust assembly rods into the backrest frame holes at the top.
- Attach the 2 power lumbar adjust assembly lower pin-type retainers to the backrest frame.
- Connect the power lumbar adjust assembly motor electrical connector.
Seat with manual lumbar
3. Attach the 2 manual lumbar spring clips to the backrest frame.
All seats
4. WARNING:
- Before installing the side air bag module, check it for damage and foreign objects. If the air bag module is damaged, install a new one. 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.
- Inspect the mounting surfaces of the side air bag module and the seat back frame 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 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.
CAUTION: Make sure the side air bag module wiring harness is not pinched between the side air bag module and the mounting bracket.
Align the holes of the side air bag module bracket to the U-nuts on the backrest frame.
- Install new U-nuts if installing a new side air bag module.
5. Slide the side air bag module onto the backrest frame so the bracket hook wraps around the backrest frame.
6. Install the side air bag module bolts, route the wire harness as noted during disassembly and install the side air bag module wire harness pin-type retainers.
- Tighten to 10 Nm (89 lb-in).
Heated seat
7. If necessary, install the backrest heated seat mat.
- For driver seats with power recline, connect the backrest heated seat mat electrical connector.
All seats
8. Position the backrest foam pad around the backrest frame.
9. Position the backrest trim cover to the backrest frame and foam pad.
10. Roll the backrest trim cover down, attach the hook and loop strips and install the second row of hog rings.
11. Roll the backrest trim cover down, attach the hook and loop strips and install the first row of hog rings.
12. Roll the backrest trim cover down, attach the hook and loop strips and connect the backrest trim cover lower J-clip.
13. Position the backrest trim cover to the inboard and outboard recliners and install the plastic rivets.
14. NOTE: The head restraint guides are not interchangeable.
Install the head restraint guides.
15. Install the head restraint.
16. Install the front seat backrest.
17. Install the front seat and repower the SRS. If a passenger seat has been serviced, do not prove out the SRS at this time.
Passenger seat
18. Carry out the Occupant Classification Sensor (OCS) System Zero Seat Weight Test and prove out the SRS. Zero Seat Weight Test