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Old 06-17-2021, 05:09 AM   #9
Timbo-1LE
 
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Drives: 2017 SS 1LE
Join Date: Mar 2017
Location: Florida
Posts: 617
It may be like my 21 Silverado. If not ordered when the car was new, the dealer cannot get the update from tech center. https://gm-techlink.com/?p=14771
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