How To Program GM Keys On Board When You Lost All Your Keys?

car key

Program Your GM Car Key

First, you need to make sure your battery is full (11.+ will be good)

This process takes a total of 30 minutes to program your transponder chip.
Use the new car key with the chip you want to program. You will need to do 3 cycles of 10 min each. Leave your key in the On position for 10 minutes, then OFF and on again for the next cycle.
Do it 3 times and your car key will be programmed!

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