System Revisions

The 2005 ATC system remains mostly carryover from 2004. Revisions to the 2005 ATC system include:

• all new version 0012 software.
• a new telltale in the instrument cluster for RG vehicles equipped with a Cabin Heater. The telltale illuminates when the Cabin Heater is operational. Messages bussed from the ATC Module tell the instrument cluster when to illuminate the telltale and when to shut it off.