Front/Rear Heated Seats - Inoperative
File In Section: 08 - Body and AccessoriesBulletin No.: 01-08-50-001
Date: January, 2001
TECHNICAL
Subject:
Front/Rear Heated Seat Inoperative/Cold
(Install Seat Heat Element)
Models:
2000-2001 Cadillac DeVille
with RPO KA1
Condition
Some customers may comment on a front/rear heated seat back/cushion that is not operating properly.
Cause
This condition may be due to a non-functioning heat element in a front/rear heated seat back/cushion.
The heat seats system in a 2000 and 2001 Cadillac DeVille consists of 4 heated seats, 2 in the front and 2 in the rear. On the DTS and DHS models each heated seat consists of 4 heat elements; 1 in the seat back and 3 in the seat cushion. On the DeVille model, each heated seat consists of 2 heat elements; 1 in the seat back and 1 in the seat cushion.
Front Seat Heat Element Locations
Rear Seat Heat Element Locations
Correction
1. If replacement of the front/rear seat back heat element is indicated after performing the standard diagnostic procedures:
^ Install a new seat back heat element between the existing seat trim cover heat element and the foam pad.
^ Refer to the Heat Element (Heater) Installation Procedure in this bulletin.
2. If replacement of the front/rear seat cushion heat element is indicated after performing the standard diagnostic procedures:
^ On DTS & DHS models: Determine if one or more of the 3 heat elements is non-functional.
^ Install a new seat cushion heat element(s) between the existing seat trim cover heat element and the foam pad.
^ Refer to the Heat Element (Heater) Installation Procedure in this bulletin.
Heater Element (Heater) Installation Procedure
1. Carefully cut and remove only as many seat trim cover retaining hog rings as necessary that will allow the front/rear seat back/seat cushion trim cover to be folded back (1).
Refer to the appropriate seat trim cover removal procedure in the Seats sub-section of the Service Manual.
2. If installing a front/rear seat back or a DeVille front/rear seat cushion heat element (heater):
2.1. Remove the non-functioning heat element wiring harness from the trim cover.
2.2. Use a pair of diagonal side cutters to cut the wires as close to the trim cover as possible (2).
2.3. Remove the backing paper from the back of the new heat element.
2.4. On vehicles with Adaptive Seat Control (RPO AC9), carefully position and press the new heat element over the existing heat element on the trim cover.
2.5. On vehicles without Adaptive Seat Control (RPO AC9), carefully position and press the new heat element (3) onto the seat back/cushion foam pad.
2.6. Ensure the new heat element is laying flat.
3. If installing a front/rear seat cushion heat element(s) (heater) on DTS & DHS models:
3.1. Disconnect the 2 green 2-way connectors (4) and remove ONLY the non-functioning heat element(s) wiring harness from the trim cover.
3.2. Use a pair of diagonal side cutters to cut ONLY the wires (6) of the non-functioning heat element(s) as close to the trim cover as possible.
3.3. Remove the backing paper from the back of the new heat element(s).
3.4. On vehicles with Adaptive Seat Control (RPO AC9), carefully position and press the new heat element(s) over the existing heat element(s) on the trim cover.
3.5. On vehicles without Adaptive Seat Control (RPO AC9), carefully position and press the new heat element(s) (5) onto the seat cushion foam pad.
3.6. Ensure the new heat element is laying flat.
3.7. On DIS & DHS models: Connect the 2 green 2-way connectors (4).
4. Install the seat trim cover retaining hog rings in order to retain the seat cushion trim cover to the foam pad.
Refer to the appropriate seat trim cover installation procedure in the Seats sub-section of the Service Manual.
5. Verify the seat heat function is operational.
Parts Information
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use the table.
Disclaimer