[Free Fix] 2016 Holden Calais won’t crank - all signs point to missing code

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Where's the key code located on a 2016 Holden Calais for key programming?

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Dealer wants too much just to reset my 2016 Holden Calais. Trying this instead.

Anyone got tips on key code retrieval for a 2016 Holden Calais?

My 2016 Holden Calais's been in the garage for a week over this. Thanks!

Following along—same issue with my 2016 Holden Calais.

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Programming syncs the key's transponder chip with your car's immobilizer system. The process varies by manufacturer but generally involves: 1) authenticating with the car's computer 2) erasing old keys if needed 3) programming new key codes 4) testing functionality.
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