Insignia-B firmware files
This file is for Insignia-B Buick Regal 2018 onwards.
if you install this file onto a Insignia-A IPC your outside temperature will not show on the sat-nav screen.
The Insignia-A version can be found here.
This file includes
The USB firmware update file
The DPS calibration file.
The DPS XML file.
Tutorial for how to install.