This procedure covers the removal and replacement of the heated seat module, located under the driver or passenger seat, to restore heated seat functionality.

Warnings

Tools required

Parts

• Heated seat module × 1 — Use OEM specification
• Wire connector lock clips (if damaged) × 1 — Replace as needed

Preparation

1. Park vehicle on level ground and engage parking brake
2. Disconnect battery negative terminal and wait minimum 2 minutes for airbag system discharge
3. Move the seat to the full forward position for easier access to rear mounting bolts
4. Identify which seat has the malfunctioning heated seat module (driver or passenger side)

Procedure

1. 1

   Remove seat track rear mounting bolts
   With the seat in full forward position, locate the two rear seat track mounting bolts. Use a 10mm socket to remove both rear mounting bolts completely. Keep bolts organized for reinstallation.
   Torque spec

   Module Mounting Bolts8 Nm (6 lb-ft)
2. 2

   Remove seat track front mounting bolts
   Move the seat to the full rearward position. Locate and remove the two front seat track mounting bolts using a 10mm socket. The seat assembly is now free but still connected by wiring underneath.
   Torque spec

   Module Mounting Bolts8 Nm (6 lb-ft)
3. 3

   Tilt and support the seat
   Carefully tilt the seat backward and upward to access the underside. Have an assistant hold the seat or use a stable support to keep it elevated. Be careful not to strain the electrical wiring still connected underneath.
4. 4

   Disconnect seat wiring harness
   Locate the main seat wiring harness connector under the seat. Press the locking tab and disconnect the main connector. If present, disconnect the seat position sensor connector and any additional connectors. Note connector positions for reassembly.
5. 5

   Remove seat from vehicle
   With all electrical connections disconnected, completely remove the seat assembly from the vehicle and place it on a clean work surface with the bottom facing up. This provides better access to the heated seat module.
6. 6

   Locate heated seat module
   The heated seat module is mounted to the underside of the seat frame, typically near the center or front of the seat cushion. It is a rectangular black or gray box approximately 4x6 inches with multiple wire connectors. Identify all connectors attached to the module.
7. 7

   Disconnect module electrical connectors
   Disconnect all electrical connectors from the heated seat module. There are typically 2-4 connectors including power supply, heating element connections, and control switch connections. Press locking tabs firmly and pull connectors straight out to avoid pin damage.
8. 8

   Remove module mounting hardware
   Using an 8mm socket, remove the module mounting bolts securing the heated seat module to the seat frame. Most modules use 2-3 mounting bolts. Keep hardware organized for reinstallation.
   Torque spec

   Module Mounting Bolts8 Nm (6 lb-ft)
9. 9

   Remove old module and inspect connections
   Remove the old heated seat module from the seat frame. Inspect all wire connector terminals for corrosion, damage, or burn marks. Clean any corrosion from connector pins using electrical contact cleaner. Inspect heating element connectors for signs of overheating.
10. 10

    Install new heated seat module
    Position the new heated seat module in the same location and orientation as the old module. Align mounting holes with the seat frame. Install mounting bolts finger-tight initially to allow for alignment adjustment.
    Torque spec

    Module Mounting Bolts8 Nm (6 lb-ft)
11. 11

    Reconnect module electrical connectors
    Reconnect all electrical connectors to the new module in their original positions. Ensure each connector locks firmly with an audible click. Verify heating element connectors, power supply, and control switch connections are all secure.
12. 12

    Reinstall seat assembly
    Carefully position the seat assembly back into the vehicle over the four mounting bolt locations. Reconnect the main seat wiring harness connector and any additional connectors that were disconnected. Ensure all wiring is routed properly and not pinched.
13. 13

    Install seat mounting bolts
    Install all four seat track mounting bolts. Start all bolts by hand first to ensure proper thread engagement. Torque all four mounting bolts to specification using a torque wrench. Verify seat is solidly mounted with no movement.
    Torque spec

    Module Mounting Bolts8 Nm (6 lb-ft)
14. 14

    Reconnect battery and test system
    Reconnect the battery negative terminal and torque to specification. Turn ignition to ON position without starting engine. Test heated seat operation at all heat settings (low, medium, high if equipped). Verify the seat heats properly and control lights function correctly.
    Torque spec

    Battery Terminal Bolts6 Nm (4 lb-ft)

Reassembly

1. Ensure all electrical connectors are fully seated and locked before torquing seat mounting bolts
2. Verify no wiring is pinched or routed incorrectly under the seat before final installation
3. Move seat through full range of motion to ensure tracks operate smoothly and no wiring interference occurs

Verification

• Turn ignition to ON position and activate heated seat at each temperature setting
• Verify heated seat indicator light illuminates on the control switch
• Allow seat to heat for 2-3 minutes and confirm warmth is felt in seat cushion and backrest
• Test seat adjustment controls to ensure all electrical functions work properly
• Check for any warning lights on instrument cluster related to restraint systems or seat functions

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