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Data Communications

WARNING: This page is about a different car, the 2016 Buick LaCrosse. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Data Communications Block Diagram
GM3655843Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
DJ Serial Data - Local Interconnect Network
DJ Serial Data - Local Interconnect Network
DK Serial Data - MOST
DK Serial Data - MOST
DK Serial Data - MOST
DK Serial Data - MOST
DK Serial Data - MOST
DK Serial Data - MOST
DK Serial Data - MOST
P17 P17 Info Display Module
K33 K33 HVAC Control Module
X84 X84 Data Link Connector
A33 Media Disc Player
P16 P16 Instrument Cluster
T3 T3 Audio Amplifier
S136 Infotainment Control Touchpad
K74 Human Machine Interface Control Module
A11 A11 Radio

Data Communications 

The infotainment system communicates with other devices on multiple serial data networks during operation. The infotainment system utilizes the Media Oriented Systems Transport (MOST) bus, Local Interconnect Network (LIN) and GMLAN to establish communications. For additional information refer to Data Link Communications Description and Operation