09/04/2026
Customer-supplied keys change the room fast.
They already bought it. They already waited for it. They already decided this was the cheaper way to handle the job.
Now they need the shop to make it work.
The tech didn’t choose the key. Didn’t test the board. Didn’t verify the seller. Didn’t write the listing. Didn’t promise the FCC.
Still, when it doesn’t behave, the explanation lands at the counter.
That’s the part every shop knows. The customer thinks the risk ended when the package arrived.
The shop knows the risk just walked in. Wrong key. Weak board. Bad rebuild. Missing details. Shell looks fine, but the vehicle disagrees. Now the job isn’t just programming anymore.
It’s figuring out what the customer actually brought in.
And somehow, the locksmith becomes the person explaining a key they never sold.
What’s your shop’s rule on customer-supplied keys?