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Cooled Seats?

Stonewall11

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l1nk3d Enthusiast

l1nk3d

Posted
Posted

My cooled seats are a life saver here in Texas. Mine was parked out in the sun all day the past three days and each day while walking out to the truck I remote started and by the time I got in the truck the seats were significantly cooler.

It's not like having an ice pack on your back, but ANY air circulation on your back and butt helps when you are warm natured. At the end of my day any breeze between my legs is a god send, and I'm not a 'large' guy.

If A/C seats are an option on any vehicle I get going forward I'll be getting it.

I can also agree with Go Ordnance, if I forget mine are on during a longer drive I'll get a chill.

Stonewall11 Enthusiast

Stonewall11

Posted
  • Author
Posted

You think so Tjay? I never thought of that. Anyone done or attempted it and have an experience. Would be nice to know before I spend that $$


Also the good reviews on them just makes me want them more :C

TJay74 Senior Enthusiast

TJay74

Posted
Posted

The BCM pretty controls a lot of the body systems now, so that is what makes it challenging since the dealers cant program the BCM with anything other than the firmware calibration that GM has on file for that VIN.

Jackseric Enthusiast

Jackseric

Posted
Posted

I would imagine that the functioning portion of the cooled seats are controlled by wiring. Sure there would be a way, if he got the seats... to connect said wiring to a manually controlled switch. You might not get the full control of the high/med/low like those of us with the factory option, but you should be able to make it work. Just depends on how determined you are. Definitely won't be a plug and play kind of upgrade.

tbarn Senior Enthusiast

tbarn

Posted
Posted

I believe they are much more complicated than a switch will do,

 

The body control module (BCM) monitors the heated cooled seat switches through LIN bus message inputs and determines the heated cooled seat operating modes and temperature levels. Each heated cooled seat is capable of operating in 3 modes with 3 temperature levels. The BCM controls the operating mode of the driver and passenger seats through separate pulse width modulation (PWM) signal circuits. Each mode and temperature level is commanded by a different Duty Cycle. The PWM signal circuits are referenced from battery voltage by the blower assemblies and pulsed low by the BCM.

Stonewall11 Enthusiast

Stonewall11

Posted
  • Author
Posted

Now that's a good answer. I'm gonna have to ask GM about it now.

Now that's a good answer. I'm gonna have to ask GM about it now.

Jackseric Enthusiast

Jackseric

Posted
Posted

I believe they are much more complicated than a switch will do,

 

The body control module (BCM) monitors the heated cooled seat switches through LIN bus message inputs and determines the heated cooled seat operating modes and temperature levels. Each heated cooled seat is capable of operating in 3 modes with 3 temperature levels. The BCM controls the operating mode of the driver and passenger seats through separate pulse width modulation (PWM) signal circuits. Each mode and temperature level is commanded by a different Duty Cycle. The PWM signal circuits are referenced from battery voltage by the blower assemblies and pulsed low by the BCM.

 

Ahh... you and your fancy science... just have to prove me wrong with facts and actual numbers. :-)

 

I'd still be tempted to try to find the right wire to put power on to make the fan blow. But it sounds like he'd be better off looking for an aftermarket add-on, as someone else already said. :cheers:

johnrunner89 Enthusiast

johnrunner89

Posted
Posted

It very much plug and play with a couple minor exceptions.

 

You need new wiring OEM harnesses that are for oem AC/heated for driver and passenger seats (main bottom harness AND back harnesses) and you need to add the new oem button module in dash (the in dash wire harness will connect to same button module as your heated seats button). Then you need to add missing LIN bus wiring (i think thats what its called) from bcm module to the female connecter that main big yellow seat connecter plugs into new. (The AC/heated seats main wire harness is almost identical to heated seats only harness with a couple extra pins inside that connect for the cooled seat function and the blower connecter). You also need to switch to the oem cooled seat foam, add oem blowers that go into new AC/heated seats foam and add this plastic air bag that connect to blowers that lays under the leather. The new OEM Ac/heated seat foam comes with the heated pad already attached to it (same heated pad as the heated only seats, AC/heated seats use blowers for cool air ONLY) Then when thats all done, you need to have a VCI update to your VIN done to tell the BCM you have the oem ac/heated seat option added to your vin so it can turn the seats on (which isn't easy as you need a dealer to have it done for you after they get GM to approve it). And waiting for the OEM harnesses may take a while as they are still being used on produced trucks.. Oh and dont forget you need perforated leather.

 

There's the process, don't ask me how I know all of it. :smash::thumbs:

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