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Chevy Blazer
Chevy Suburban
Oldsmobile Alero

How do you reset the security light on a suburban?

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Wiki User
March 30, 2011 12:07AM

You can do it with a scanner. Usually when the security light is flashing it means there is a problem with the passlock system. Dealer item and about $500.00-$700.00 to replace parts & reprogram.