Seat Backrest Heater Mat - Rear

Seat Backrest Heater Mat - Rear

Removal

NOTICE: The heater mat is not designed to be separated from the foam pad. Doing so will damage the foam pad. Install a new foam pad and heater mat. Failure to follow this instruction can result in seat component damage and system failure.

NOTE: For parts identification and location, refer to Seat - Exploded View, Rear, Crew Cab Seat - Exploded View, Rear, Crew Cab.

1. Remove the seat backrest cover. For additional information, refer to Seat Backrest Cover - Rear, Crew Cab Seat Backrest Cover - Rear, Crew Cab.
- For 40 percent seat, disconnect the cushion heater mat electrical connector.

2. Disconnect and detach the backrest heater mat electrical connector.
- Note the wire harness routing for correct installation.

3. Remove the backrest foam pad with heater mat and discard.

Installation

1. Install the backrest foam pad to the backrest frame.

2. NOTICE: Remove the paper strip covering the adhesive before adhering the heater mat to the foam pad. Otherwise, damage to the seat can occur.

NOTE: When adhering the heater mat to the foam pad, be sure to position the heater mat so it is straight and free of any wrinkles that may show through the cover material after installation.

Install the heater mat to the foam pad.

- Align the heater mat square to the seat with the wiring toward the lower edge and tuck the narrow areas into the valley of the foam pad.

- Align the upper windows of the heater mat over the listing wire in the foam pad to allow for hog ring installation when the backrest cover is installed.

- Firmly apply the heater mat to the foam pad and rub to seal the adhesive.

3. Route the wire harness through the hole in the foam pad, attach and connect the electrical connector.

4. Install the seat backrest cover. For additional information, refer to Seat Backrest Cover - Front Seat Backrest Cover - Front.
- For 40 percent seat, connect the cushion heater mat electrical connector.