Front Heated Seats – 2014-2019 Cadillac Chevrolet & GMC

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NHTSA ID Number: 10154558

Manufacturer Communication Number: PIT5434C

 

Summary

This Preliminary Information communication provides information to the technician only to provide additional tips when diagnosing a front heated seat concern and is not meant to be a diagnostic flow chart or replace Service Information.  Always, perform and refer to Service Information for the latest diagnostic information and procedures.

 

 


20 Affected Products

Vehicles

MAKE MODEL YEAR
CADILLAC ESCALADE 2015-2019
CHEVROLET SILVERADO 1500 2014-2015
CHEVROLET SILVERADO 2500 2015
CHEVROLET SILVERADO 3500 2015
CHEVROLET SUBURBAN 2015-2016
CHEVROLET TAHOE 2015-2016
GMC SIERRA 1500 2014-2015
GMC SIERRA 2500 2015
GMC SIERRA 3500 2015
GMC SIERRA DENALI 2015
GMC YUKON 2015-2016

 


Condition / Concern

Note: This document is only to provide additional tips when diagnosing a front heated seat concern and is not meant to be a diagnostic flow chart or replace SI. Always, perform and refer to SI for the latest diagnostic information and procedures.

Some customers, with trucks equipped with heated and cooled seats (RPO KB6), may comment on any of the following front heated seat concerns:

Condition 1: A front heated seat (driver, passenger, back and/or cushion) is inoperative

Condition 2: The front heated seats do not operate when the truck is remote started and/or when first started in the morning during a cold start

Condition 3: The front heated seats do not heat up like their previous vehicle

 



1 Associated Document

Manufacturer Communications

Bulletin No.: PIT5434C
Published date: 12/4/2018

https://www.nhtsa.gov/recalls?nhtsaId=10154558

MC-10154558-9999.pdf 112.695KB

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NHTSA ID Number: 10125124

Manufacturer Communication Number: PIT5434B

 

Summary

This Preliminary Information communication provides information to the technician only to provide additional tips when diagnosing a front heated seat concern and is not meant to be a diagnostic flow chart or replace Service Information. Always, perform and refer to Service Information for the latest diagnostic information and procedures.

 

1 Associated Document

Manufacturer Communications

Bulletin No.: PIT5434B
Published date: 11/20/2017

https://www.nhtsa.gov/recalls?nhtsaId=10125124

MC-10125124-9999.pdf 82.281KB

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NHTSA ID Number: 10114840

Manufacturer Communication Number: PIT5434A

 

Summary

This Preliminary Information communication provides information to the technician only to provide additional tips when diagnosing a front heated seat concern and is not meant to be a diagnostic flow chart or replace Service Information. Always, perform and refer to Service Information for the latest diagnostic information and procedures. Trucks equipped with heated and cooled seats Regular Production Option Code (KB6), may comment on any of the following front heated seat concerns. Condition 1, a front heated seat (back and/or cushion) is inoperative. Technician should diagnosis each affected seat heater individually. Technician should test all four circuits Power, Ground, Control (from Body Control Module) and Heating Element Supply Power. The Power, Ground, Control (from Body Control Module) can easily be checked by starting the engine and turn on the cooled seat. When the cooled seats are turned on the blower in each seat back and cushion will turn on at that point technician will be able to hear the blower moving. The heating element supply power circuit can be test by disconnecting the affected heating element and connect a voltmeter across the heating element supply power and ground circuit. Then start the engine and turn on the heated seat, the blower will supply system voltage on the element supply power circuit for 1 to 2 seconds. With the heated seat element disconnected, use an ohmmeter to measure the resistance of the heating element. If all of the above steps check ok or the heating element resistance is close to the approximate spec, reconnect all disconnected connectors. Connect a voltmeter across the affected heated seat element connectors supply power and ground circuits back probing the connector. Then check the resistance of the heating element. The resistance should be close to the same resistance as when testing with the connector unplugged. Now check the voltage with the engine running and the heated sets on high. Condition 2, the front heate

 

1 Associated Document

Manufacturer Communications

Bulletin No.: PIT5434A
Date: Nov-2016

https://www.nhtsa.gov/recalls?nhtsaId=10114840

https://static.nhtsa.gov/odi/tsbs/2016/MC-10114840-9999.pdf

MC-10114840-9999.pdf 101.61KB

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NHTSA ID Number: 10115052

Manufacturer Communication Number: PIT5434

 

Summary

This Preliminary Information communication provides information to the technician only to provide additional tips when diagnosing a front heated seat concern and is not meant to be a diagnostic flow chart or replace Service Information. Always, perform and refer to Service Information for the latest diagnostic information and procedures. Trucks equipped with heated and cooled seats Regular Production Option Code (KB6), may comment on any of the following front heated seat concerns. Condition 1, a front heated seat (back and/or cushion) is inoperative. Technician should diagnosis each affected seat heater individually. Technician should test all four circuits Power, Ground, Control (from Body Control Module) and Heating Element Supply Power. The Power, Ground, Control (from Body Control Module) can easily be checked by starting the engine and turn on the cooled seat. When the cooled seats are turned on the blower in each seat back and cushion will turn on at that point technician will be able to hear the blower moving. The heating element supply power circuit can be test by disconnecting the affected heating element and connect a voltmeter across the heating element supply power and ground circuit. Then start the engine and turn on the heated seat, the blower will supply system voltage on the element supply power circuit for 1 to 2 seconds. With the heated seat element disconnected, use an ohmmeter to measure the resistance of the heating element. If all of the above steps check ok or the heating element resistance is close to the approximate spec, reconnect all disconnected connectors. Connect a voltmeter across the affected heated seat element connectors supply power and ground circuits back probing the connector. Then check the resistance of the heating element. The resistance should be close to the same resistance as when testing with the connector unplugged. Now check the voltage with the engine running and the heated sets on high. Condition 2, the front heate

 

1 Associated Document

Manufacturer Communications

Bulletin No.: PIT5434
Date: Jun-2015

https://www.nhtsa.gov/recalls?nhtsaId=10115052

MC-10115052-9999.pdf 88.486KB

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“This site contains affiliate links for which OEMDTC may be compensated”
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1 thought on “Front Heated Seats – 2014-2019 Cadillac Chevrolet & GMC”

  1. So the answer to concern 3 is GM installed a system that doesn’t work as well is past systems. It is not a malfunction that your heated seats do not work as well as previous cars, GM designed them that way. Clearly GM needs to do two things: Terminate some engineers and gear up to replace the systems at no costs to their customers

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