455G Trailblazer, Envoy and Bravada Databus Interface Module
The 455G interface operates many functions of the lock/security system in the 2002-05 model
year Trailblazer, Envoy and Bravada. The 455G converts the signals from Keyless entry, alarm and remote start systems into signals that can be understood by the vehicle's data bus. This allows interfacing with the factory security and
lock system through the data wire in the vehicle. The 455G controls door lock operations including locking, unlocking, and driver's door only unlocking. The 455G also provides control of the factory security system. The factory security can be armed and disarmed when locking or unlocking the doors or disarmed when remote
starting while leaving the doors locked. The dome light and headlights will illuminate when the unit unlocks the doors depending on the vehicle model and trim level.
Find out if your Vehicle needs a
New up-dated version works with keyless
and non-keyless entry