2018 Dodge ram 1500 2500 3500 , Jeep Grand Cherokee , Dodge Durango Dealer mode. Allows you to Gain access to add navigation if you dont have it. Really its just to get information of the radio that dealer uses like sirius radio subscription, serial numbers and part numbers. with the key in the run position Hold the Drivers side temperature hot , cold and windshield defroster at the same for 5 seconds. Then dealer mode will be displayed on the radio. Thanks and don't for get to subscribe.

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