our Denali code was 1-2-3-4-1 to unlock, 1-2-3-4-4 was to lock. Make sure you follow the programming steps very carefully when programming, popping the battery out never changed the code for us, but was a specific sequence to enter to return unit to default programming.
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2007 GMC Sierra 2500HD 6.6L Duramax CC/SB
2015 Chevy Silverado 3500HD 6.6L Duramax CC/LB DRW
2014 Voltage V-3605 with trail-air pinbox
2012 Can-Am Commander XT 1000, 1998 golwing GL1500
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