GM Doorlock and Passlock Databus Interface Module - Replaces 457GW

Works with Any Aftermarket Remote Start or Keyless Entry System
Compatible with the Factory Anti-Theft System
Maintains the Integrity of the Factory Anti-Theft System
Compatible with the Factory Security and Convenience Functions
Maintains Integrity of Factory Security and Convenience Functions
High Security Single-Wire Data Transfer
Compact Design, Easy to Mount
Simple Programming
No Key Required for Operation with One Key Required for Programming The Trunk Release Feature is Not Available On All Platforms Replaces 456A, 456B, 456G, 455G, 456AW, 456BW, 456GW, 455GW