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2003 GMC Sierra 3500
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OEM (Genuine) 2003 GMC Sierra 3500 Seat Back Heater
PartNumber: 88940289
Product Specifications- Notes: Bucket Seat, Driver Side, 2003-07, Seat Back; All Models; Front; Driver Seat; Upper
- Location: Driver Side
- Other Names: Element, Seat Back Heater, Seat Heater
- Item Dimensions: 14.9 x 4.5 x 4.4 inches
- Item Weight: 1.00 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2003 GMC Sierra 3500 Seat Back Heater
Vehicle Fitment- 2003 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
$156.92 MSRP:$236.70You Save: $79.78 (34%)
Dorman® OE Solutions Front Seat Heater Pad for 2003 GMC Sierra 3500
PartNumber: 641-106Product Specifications- Notes: Seat Back
- Control Switch Included: No
- Cover Material: Carbon Fiber
- OE Part Number: 88940289, 88940310
- Seat Type: Back
- Universal Or Specific Fit: Specific
- UPC: 019495125242
- Wiring Harness Included: Yes
- Part Description: 2003 GMC Sierra 3500 OE Solutions Front Seat Heater Pad
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | All Engines
$134.78
OEM (Genuine) 2003 GMC Sierra 3500 Seat Heater
PartNumber: 88940288
Product Specifications- Notes: Bucket Seat, Driver Side, 2003-07, Seat Cushion; All Models; Front; Driver Seat; Lower
- Location: Driver Side
- Other Names: Element, Seat Heater
- Item Dimensions: 3.3 x 13.3 x 12.6 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2003 GMC Sierra 3500 Seat Heater
Vehicle Fitment- 2003 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
$145.55 MSRP:$219.55You Save: $74.00 (34%)
Dorman® OE Solutions Front Seat Heater Pad for 2003 GMC Sierra 3500
PartNumber: 641-105Product Specifications- Notes: Seat Bottom
- Control Switch Included: No
- Cover Material: Carbon Fiber
- OE Part Number: 88940288, 88940309
- Seat Type: Cushion
- Universal Or Specific Fit: Specific
- UPC: 019495125235
- Wiring Harness Included: Yes
- Part Description: 2003 GMC Sierra 3500 OE Solutions Front Seat Heater Pad
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | All Engines
$125.81
OEM (Genuine) 2003 GMC Sierra 3500 Seat Cushion Heater
PartNumber: 88940309
Product Specifications- Notes: Bucket Seat, Passenger Side, 2003-07, Seat Cushion; All Models; Front; Passenger Seat; Lower
- Location: Passenger Side
- Other Names: Element, Seat Cushion Heater, Seat Heater
- Item Dimensions: 14.2 x 5.6 x 3.5 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2003 GMC Sierra 3500 Seat Cushion Heater
Vehicle Fitment- 2003 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
$124.76 MSRP:$188.19You Save: $63.43 (34%)
OEM (Genuine) 2003 GMC Sierra 3500 Seat Back Heater
PartNumber: 88940310
Product Specifications- Notes: Bucket Seat, Passenger Side, 2003-07, Seat Back; All Models; Front; Passenger Seat; Upper
- Location: Passenger Side
- Other Names: Element, Seat Back Heater, Seat Heater
- Item Dimensions: 16.3 x 12.9 x 1.9 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2003 GMC Sierra 3500 Seat Back Heater
Vehicle Fitment- 2003 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
$131.11 MSRP:$197.76You Save: $66.65 (34%)
OEM (Genuine) 2003 GMC Sierra 3500 Heater, Rear Seat Cushion
PartNumber: 88976458
Product Specifications- Notes: All Models; Rear
- Other Names: Element
- Item Dimensions: 13.2 x 4.7 x 4.3 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2003 GMC Sierra 3500 Heater, Rear Seat Cushion
Vehicle Fitment- 2003 GMC Sierra 3500 | Base, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
FAQ for Seat Heater Pad Repair
Q: What are the conditions for the seat heater control module?
A:
Some customers may comment that occasionally the seat heater will not operate when activated. If the ignition key is cycled OFF and back ON again, the heated seat will operate correctly. Also, on some LB7 diesel engine vehicles, the seat heater may turn itself off during the first 10 minutes of operation. This occurs only with the first activation for the day and works correctly with subsequent activations immediately after the event. These conditions are intermittent and DTC B3941 may be set.
By Bob
GM Specialist
01/11/2022Q: How to install the seat back heater element-front?
A:
You can connect the seat back heater harness, install the seat back heater, the seat back trim cover and the seat in the vehicle.
By Bob
GM Specialist
01/11/2022Q: How to remove the seat back heater element-front?
A:
You can remove the seat from the vehicle, and the seat back trim cover, peel the seat back heater off the foam pad, and disconnect the seat back heater harness.
By Bob
GM Specialist
01/11/2022Q: How to remove the seat cushion heater element-front?
A:
You can remove the seat trim panel, and the seat cushion trim cover, peel the seat cushion heater off of the pad and disconnect the seat cushion heater wiring harness.
By Bob
GM Specialist
01/11/2022Q: How to install the seat cushion heater element-front?
A:
You can replace the inflatable restraint passenger presence system if the passenger seat cushion foam is damaged, connect the cushion heater wiring harness, and install the seat cushion heater, the seat cushion trim cover, and the seat trim panel.
By Bob
GM Specialist
01/11/2022