Throwing a code for active grill shutter

[Daniel hurst]

I recently had the recall done on my 2020 6.6 and was wondering has anyone had any issues with fuel economy dropping significantly. Also I’m having issues with a code for active grill shutter and sometimes it comes on and sometimes doesn’t. Hadn’t had an issue with anything until the recall done for the regen system. If anyone has any light on situation I’d appreciate it. 

[XY74]

Some have reported a drop in fuel economy.  I have not seen any change on mine beyond the tank of fuel when they did the recall.  

 

I got an active shutter code once, there was a small piece of paper stuck in the grill.  Never got the code again.  I felt lucky.     

[MTU Alum]

There are rocks are other debris that can get stuck in the lower shutter.  GM has removed the lower shutters due the warranty issues and relatively low fuel economy impact.

[MTU Alum]

If you had early 2020 that had the recall, fuel economy probably has gone down a little.  The alternative is a failed dpf.  It regens more frequently.  You basically get the cals from 2021.

[Blatant]

What is  "the recall"  and what are lower shutters?  Thanks for the info.

[GMCustomerService]

On 8/23/2022 at 3:52 AM, Daniel hurst said:

I recently had the recall done on my 2020 6.6 and was wondering has anyone had any issues with fuel economy dropping significantly. Also I’m having issues with a code for active grill shutter and sometimes it comes on and sometimes doesn’t. Hadn’t had an issue with anything until the recall done for the regen system. If anyone has any light on situation I’d appreciate it. 

This is certainly not what we like to hear, Daniel hurst.  Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your 2020 6.6. To do so, please send an email to [email protected] with ATTN: Daniel hurst/GM Trucks in the subject line.

Please include your contact information, VIN, a brief description of your concern, and the name of your preferred dealership. We look forward to hearing from you. To learn more about GM’s privacy policy, please visit https://www.gm.com/privacy-statement.html.
 
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