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Discussion Starter #1
Just a heads up. If you have your dealership turn on Afterblow to dry your HVAC system don't be surprised to get back into your car after a short stop to find the cabin air blowers running. This won't happen often, but Saturday I had this happen to me. I had to think for a moment to figure out what was going on.
 

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What do you do, just take it to the dealer and they will flip a setting?
 

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Discussion Starter #4
It's a BCM setting. I don't know how much a dealership will charge to do this as mine was turned on as part of the mold/mildew cleaning I had done the first year I owned my car.
 

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Sort of,

They have to connect the Tech II to the ALDL connector under the dash......scroll to HVAC settings and find 'Afterblow' which will currently be 'Disabled'
They just select 'Enable' button things up and you are done.

Most (depending on your relationship with the dealer) will charge for their time......15 to 20 minutes is fair.

Rob
 

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Need to get this done myself.

So will having this HVAC afterblow feature activated allow us to now have the Air Conditioner blasting during summer drives and not have to worry at all about cutting the A/C off prematurely of our intended destination in order to give time to blast regular air through the vents and avoid mildew buildup?
 

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Yes.
 

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I Had it on before on another cruze, Doesn't help at all getting rid of the Mold smell, in fact I think it just stinks the car up more.. On my current cruze I don't have it on and its just fine, just remember to turn on the non recurclate more....
e
 

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I Had it on before on another cruze, Doesn't help at all getting rid of the Mold smell,
I live in a very humid enviroment. I started turning off the A/C before I get home, but then I started to get a funky smell. I stopped doing that hoping to take the smell to the dealer, but then it disappeared. I'm not sure if my afterblow is on or not. I'm always in recirculate mode.
 

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Discussion Starter #10
Need to get this done myself.

So will having this HVAC afterblow feature activated allow us to now have the Air Conditioner blasting during summer drives and not have to worry at all about cutting the A/C off prematurely of our intended destination in order to give time to blast regular air through the vents and avoid mildew buildup?
Bingo.
 

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Discussion Starter #11
I Had it on before on another cruze, Doesn't help at all getting rid of the Mold smell, in fact I think it just stinks the car up more.. On my current cruze I don't have it on and its just fine, just remember to turn on the non recurclate more....
e
If you already have mold/mildew this by itself won't kill the smell. You still need to get the system cleaned out. Once clear then the afterblow feature helps keep the mold/mildew at bay by drying out the system. As for recirc, afterblow always comes through the fresh air vents. The car will resume recirc mode when you start the car again.
 

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How long does this afterblow run? I always just turn a/c off and run fan on fresh air for the last mile or 2 of my commute.
 
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I keep clicking on this thread expecting to get something slightly more salacious than what's here.
 

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Discussion Starter #15
I was told the blower motor would cycle several times over a one to two hour period after you turn the engine off.
 

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Does this run after every shutdown or does it only run if A/C has been used during the drive? For example, I don't see much benefit of running this feature in November.
 

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Does this run after every shutdown or does it only run if A/C has been used during the drive? For example, I don't see much benefit of running this feature in November.
My understanding is it's only if certain conditions are met - presumably it means you'd have to be using the A/C.
 

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Discussion Starter #20
Does this run after every shutdown or does it only run if A/C has been used during the drive? For example, I don't see much benefit of running this feature in November.
Only if you've been running the A/C.
 
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