Go to Dodge 3500 key programming menu, IM508 asks to hook up a Chrysler FCA 12+8 adapter
We’ve got that connected right there behind the stereo
Turn the ignition off and turn on the emergency flashers
Read security password
Select Keyless System (CAN) – Key Learning – Key Learning
Turn the ignition off and turn on the emergency flashers
Put smart be to be learned in vehicle and take other keys out of the vehicle
Auto fill-in 4-digit pin to access
Press LOCK or UNLOCK button on the remote control
Key learning successful
Put everything back
And test remote control and new key.
Done.
Read more:
Chrysler 12+8 Bypass Cable, Star Connector or AutoAuth?
Lonsdor K518ISE Chrysler Dodge 2018 to 2021 Smart Key Programming Manual