This procedure covers the removal and replacement of a heated seat element in the front seats of a 2012-2018 Jeep Wrangler JK.

Warnings

Tools required

Parts

• Seat heater element pad × 1 — Use OEM specification - specify driver or passenger side
• Hog rings (replacement) × 15 — Use OEM specification
• Seat trim clips (optional replacements) × 5 — Use OEM specification

Preparation

1. Park vehicle on level surface and engage parking brake
2. Move the affected seat to the full forward position for better access to rear bolts, then adjust as needed throughout procedure
3. Disconnect negative battery terminal and wait 2 minutes to allow airbag system to discharge (if seat has side airbags)
4. Test the seat heater with a multimeter to confirm the element is faulty before proceeding with replacement

Procedure

1. 1

   Remove seat from vehicle (optional but recommended)
   For easier access, remove the seat from the vehicle. Use T50 Torx driver to remove the four seat mounting bolts (two front, two rear). Disconnect the seat wiring harness connectors under the seat. Note connector colors and positions. Carefully remove seat from vehicle with assistance if needed as seats are heavy.
   Torque spec

   Mounting Bolts39 Nm (29 lb-ft)
2. 2

   Remove seat back cover
   Locate the plastic trim caps on the sides of the seat back near the top. Pry these off carefully with trim removal tool. Remove the T40 Torx screws underneath. Pull the seat back cover upward and forward to release from bottom clips. Disconnect the side airbag connector if equipped by pressing the red release tab.
   ⚠Handle seat covers with care to avoid tearing vinyl or leather. Material may be stiff in cold weather.
3. 3

   Remove seat cushion cover
   Use trim removal tool to release the plastic J-clips securing the seat cushion cover to the seat frame along the front and sides. There are typically 6-8 clips. Once clips are released, carefully pull the cushion cover upward starting from the rear. The cover is secured underneath with hog rings along the perimeter.
   ℹ️Some models may have the heater element in the seat back, seat cushion, or both. Verify which element needs replacement before proceeding.
4. 4

   Remove hog rings
   Turn the seat cushion upside down to access the underside. Using hog ring pliers, carefully remove all hog rings securing the seat cover to the seat frame and foam. There are typically 12-20 hog rings around the perimeter. Keep track of hog ring locations for reinstallation. Note any metal rods or stiffeners in the cover and how they are positioned.
   ⚠Hog rings are under tension and may spring loose. Wear safety glasses and work carefully to avoid injury.
5. 5

   Separate cover from foam
   Carefully peel the seat cover away from the foam padding. The heater element is typically adhered to the inside of the cover or sandwiched between foam layers. Work slowly to identify exactly where the heater element is located and how it is attached. Disconnect the heater element wiring connector, noting wire routing through the foam.
   ⚠Do not pull aggressively as the heater element may be glued to foam or cover. Use a razor blade to carefully separate adhesive if needed.
6. 6

   Remove old heater element
   Once the cover is separated, locate the heating element pad. It is typically a thin fabric pad with embedded heating wires. Carefully peel the old element away from the seat cover or foam. If it is glued, use a razor blade or scraper to carefully separate it. Note the exact position and orientation of the old element. Remove any old adhesive residue from the mounting surface.
   ℹ️Mark the orientation of the element with tape or take a photo before removal to ensure correct installation of new element.
7. 7

   Prepare new heater element
   Unpack the new heater element and verify it matches the old element in size and connector type. Check that the wiring is not damaged and the connector is secure. If the new element has adhesive backing, do not remove the protective liner yet. Test the new element with a multimeter to verify resistance is within specification (typically 3-8 ohms for seat heaters).
   ℹ️OEM elements may come with installation instructions specific to the pad design. Follow manufacturer guidance for adhesive application if provided.
8. 8

   Install new heater element
   Position the new heater element in the exact location of the old element, ensuring proper orientation and alignment. If using adhesive, apply a thin, even layer to the mounting surface or remove the protective backing from pre-applied adhesive. Press the element firmly into place, working from center outward to eliminate air bubbles. Route the element wiring through the foam following the original path.
   ⚠Ensure element is flat and smooth with no wrinkles or folds. Wrinkles can create hot spots and cause element failure.
9. 9

   Reinstall seat cover to foam
   Carefully position the seat cover back onto the foam padding, aligning all seams and ensuring the heater element wiring is properly routed and not pinched. Connect the heater element connector to the vehicle wiring harness. Begin installing new hog rings around the perimeter in the same locations as the original rings, pulling the cover taut but not overly tight.
   ⚠Do not overtighten hog rings as this can cause uneven seat appearance and premature wear. Cover should be snug but allow foam to compress naturally.
10. 10

    Reinstall seat cushion to frame
    Position the reassembled seat cushion onto the seat frame. Press firmly along the front and sides to engage the J-clips into the frame channels. Verify all clips are fully seated and the cover is properly tensioned without wrinkles or loose areas.
11. 11

    Reinstall seat back cover
    If seat back was disassembled, reconnect the side airbag connector if equipped. Position the seat back cover and engage the bottom clips first, then pull the cover upward and align the side seams. Install the T40 Torx screws at the top sides and replace the plastic trim caps.
12. 12

    Reinstall seat in vehicle
    If the seat was removed, carefully lift the seat into the vehicle and position it over the four mounting bolt locations. Reconnect all wiring harness connectors under the seat, ensuring they click into place securely. Install the four mounting bolts and tighten to specification in a cross pattern.
    Torque spec

    Mounting Bolts39 Nm (29 lb-ft)

Reassembly

1. Ensure all wiring connectors are fully seated and locked before reconnecting battery
2. Verify hog rings are secure and seat cover has no wrinkles or loose areas
3. Double-check that no tools or parts are left inside the seat assembly
4. Reconnect negative battery terminal

Verification

• Reconnect the battery and start the vehicle
• Turn on the seat heater and verify the indicator light illuminates on the switch
• After 2-3 minutes, feel the seat surface to confirm even heating across the element area
• Check for any unusual odors, which could indicate wiring issues or incorrect installation
• Operate the seat through full range of adjustment to ensure no wiring is pinched or binding
• Verify seat airbag warning light is not illuminated if seat has side airbags

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