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My 2020 Blazer keeps asking for me to do an update, I have not done it because usually with most updates they tend to mess things up. Has anyone done it and if so was there any issues?
I've not had one come up yet on my Blazer but I did them all the time on my Colorado and never had an issue.
 

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I've done a couple on my 2019 with no issues. If they send an update it's usually a good idea to apply it because it means they found something that needs fixing. Just like with your phone or computer.
 
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