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Hello, We are a small body shop/car lot based in South Kentucky. Over the last few months (4-6) we have had 4 Acadia's (also had 2 Blazer's) with the heated seats not working. We have changed the switches on both sides, the heated seat module, and had that at the dealer for relearning, still can't get them fixed. our local dealer is now telling us we need to change BCM and have that relearned as well. Has anyone else had these issues? How did you fix it?
 

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Hello, We are a small body shop/car lot based in South Kentucky. Over the last few months (4-6) we have had 4 Acadia's (also had 2 Blazer's) with the heated seats not working. We have changed the switches on both sides, the heated seat module, and had that at the dealer for relearning, still can't get them fixed. our local dealer is now telling us we need to change BCM and have that relearned as well. Has anyone else had these issues? How did you fix it?
As you are finding, diagnosing and locating the cause on something as mundane as heated seats not working can be problematic. The BCM could be the issue, but the dealer should also be able to troubleshoot and check if proper communication is occurring when the request for seat heat is being accomplished through the vehicle data network.
 

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good morning

were you ever able to figure out the heated seat issues in the arcadia and blazers ?
I also have 2 blazers with same issue heated/cooled seats and memory seats do not work . no codes and i have replaced the module under the passenger seat per chevy .
they tested and its seeing the buttons get push but still not working
any help you can give would be great
 

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I have an idea. . forget the "modules" - --

One option may be . . . just find the wires that power the heated seats and ventilation. Then cut the power wires to them, buy some lighted automotive accessory switches, wire them up to a new added/fused 12V source, and pop the switches into a convenient spot on the dash.

If desired, a timed relay can also be used to limit the on time and auto turn off the seat heaters.

Cheaper than parts and labor from a service shop and also you will then know how it's wired without connection to the mystery module system in today's vehicles.



Lighted Accessory Switches - - -
 
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