Service Procedure

1. Visually inspect each of the front seat cushions and seat backs for holes or discoloration due to excessive heat.

> If holes or discoloration due to excessive heat is found on either front seat, a new seat cover should be ordered before performing this repair.

> If no holes or discoloration due to excessive heat was found on either front seat, continue with Step 2 of this procedure.

2. Place both front seats in the full forward and full up position. The seat back must be in the full upright position.

3. Open the hood and disconnect the negative battery cable.

4. Raise the vehicle on a hoist.





5. Remove the four seat attachment nuts from each front seat (Figure 1).

6. Lower the vehicle.

7. Disconnect the seat wiring harness connector located under the seat.

8. With the help of an assistant, remove the front seats from the vehicle.

NOTE:
Perform all seat repairs on a clean work surface.

9. Unhook the J-strip retainer that holds the front seat rear carpet flap. The flap is located at the bottom of the seat cushion.

10. Remove the right and left side covers from the seat cushion.





11. Remove the metal seat bracket from the seat cushion (Figure 2).

12. Disconnect the green two way connector that is located on the back side of the seat cushion.

13. Disconnect the two 4-way connectors at the rear of the seat pan.





14. Remove the four metal seat cushion pan retaining bolts (Figure 3).

15. Lift the seat cushion assembly from the seat track.

16. Install the new seat cushion heater element using the following procedure:

a. Remove and discard the wiring harness and seat module located on the metal seat pan.

b. Unhook the J-strip retainers on the seat cushion cover from the metal seat pan and remove the metal seat pan from the cushion. Then remove the seat foam from the seat cover.

CAUTION:
Use extreme care when removing the seat cover from the seat cushion foam. The hook and loop strip that holds the seat cover to the seat cushion foam trench could rip loose from the foam before the fasteners separate. Wedge a plastic trim stick between the two sides of the hook and loop strips to disengage the strips. Pulling on one side of the strip without holding the other side will pull the strip off the foam before the two pieces separate. Should the hook and loop fastener separate from the foam, use P/N 04773774 adhesive or equivalent to bond the strip onto the seat foam.





c. If the seat cushion cover is being reused, cut off and discard all wires attached to the inside surface of the seat cushion cover (Figure 4).

d. If the seat cushion cover is not being reused (burned or discolored), discard it and use a new cushion cover for the remaining steps.





e. With the foam cushion in the upright position, route the wires attached to the new heating elements through the hole in the foam seat cushion. Bond the new heating element onto the top of the foam as shown in Figure 5.

CAUTION:
During the installation of the new heating element, be careful not to fold or crease the element assembly.

NOTE:
There are two seat heater elements in each repair kit. Use the one marked "CUSHION" for the seat cushion (Figure 5).

NOTE:
The paper backing on each heating element has a release slot cut into it to ease backing removal. The slot is located next to the white tape that secures the wires to the heating element.

f. Install the seat foam back into the seat cushion cover.








g. Install the new wiring harness and seat heater module onto the metal seat cushion pan as shown in Figure 6 or 7.

h. Install the metal seat cushion pan onto the seat cushion foam and secure the seat cover to the pan by engaging the plastic J-strip retainers along the rear, front and both sides of the seat cushion.

i. Set the seat cushion aside for later installation.

17. If equipped, remove the lumbar support lever from the side of the seatback.

18. Remove the arm rest screw cover and remove the screw that attaches the arm rest to the seatback.

19. If the seatback cover is being replaced because of holes or discoloration:

a. Remove the seatback grab handle.

b. Remove the headrest and head rest tubes.

c. Completely remove and discard the seatback cover.





20. If the seatback is not being replaced, flip the seatback cover up, so that the cover is inside out and 3/4 of the seatback cushion foam is exposed (Figure 8).

CAUTION:
Use extreme care when removing the seat cover from the seatback foam. The hook and loop strip that holds the seat cover to the seatback foam trench could rip loose from the foam before the fasteners separates (Figure 8). Wedge a plastic trim stick between the two sides of the hook and loop strips to disengage the strips. Pulling on one side of the strip without holding the other side will pull the strip off the foam before the two pieces separate. Should the hook and loop fastener separate from the foam, use P/N 04773774 adhesive or equivalent to bond the strip onto the seat foam.

21. Cut off and discard all the old wires that are attached to the inside of the seatback cover (Figure 8). Make the cuts as close as possible to the cover surface.





22. Bond the new seatback heater elements to the seatback foam as shown in Figure 9.

CAUTION:
During the installation of the new heating elements, be careful not to fold or crease the element assemblies.

NOTE:
There are two seat heater elements in each repair kit. Use the one marked "BACK" for the seatback (Figure 9).

NOTE:
The paper backing on each heating element has a release slot cut into it to ease backing removal. The slot is located next to the white tape that secures the wires to the heating element.

23. Carefully pull the seatback cover over the seatback foam and new seatback heating elements. Secure the cover by engaging the J-strip retainers.

24. Install the arm rest onto the seatback. Tighten the screw securely and install the screw cover.


25. If removed, install the seatback grab handle, headrest tubes and headrest.

26. If equipped, install the lumbar support lever from the seatback.

27. Install the seat cushion assembly into position on the seat track.

28. Install the four (4) seat cushion pan mounting bolts and tighten them to 252 in.lbs. (28 N.m).

29. Install the right and left side panels onto the seat.

30. Connect the electrical connections for the seat heater elements as follows:

> Connect the black cushion connector to the element harness under the cushion pan.

> Connect the green cushion connector to the green seatback element connector.

31. Repeat Steps 9 through 30 on the other seat.





32. With the help of an assistant, place each of the seats into the vehicle and connect the seat harness connector to the vehicle harness (Figure 10).

33. Lift the vehicle on a hoist.

34. Install the four (4) seat retaining nuts onto the seat mounting studs for each seat. Tighten the nuts to 44 ft. lbs. (60 N.m) (Figure 1).

35. Lower the vehicle from the hoist.

36. Connect the negative battery cable.

37. Verify that the seat adjusters and seat heaters are functioning properly.