For Chrysler, Dodge, Jeep, and RAM vehicles made in 2018 and after, this device is necessary for programming.

Every vehicle manufactured by FCA (Stellantis) after 2018 is equipped with a security gateway module that guards against reprograming. The wires that link the security gateway module to the car's computer are connected by our bypass device.

You can use third-party scanning tools with this device. 
This device's sole functionality is to bypass the secure gateway function. 

*You must remove this device before taking your vehicle to the dealer, or they may not be able to connect to your vehicle.