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2021 2LT Blazer V6, White on Black
28 Posts
I don't know the answer, but you could try contacting Chevy corporate customer service: Contact Us: Customer Assistance, Financial Services & More

At a minimum you could let them know that the data is incorrect so they can fix it. With that said, I would not rely on any maps app for the current speed limit. The signs on the road are the only real 'truth'.
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