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Discussion Starter · #1 ·
My 2021 Colorado was smelling pretty nearly these past few months when I first started it up. I disinfected the HVAC by pulling out the cabin filter and spraying Lysol in through the intake cowel under the hood while running the blower on med-high. Smell is gone.

When I was in for an oil change, I asked my dealership to activate the Afterblow feature to help prevent this from returning. Attached is the literature they gave me explaining how it functions.
 

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I activated this on my truck and it did help with a strange smell I kept having in the HVAC system
 

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2018 Z71 Ext. Cab 3.6L Satin Steel
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Anyone know if you can diy this? Are there aftermarket scan tools that are capable? I hate going to the dealers, they are idiots.
 

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Isnt there a member on here that made a program to enable this?

Anyone have his username?
 
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