Network Message Chart
The displays that appear on the HUD are based on messaged inputs to the HUD module from the IPC or other network modules. The HUD module and the IPC communicate on the HS-CAN3. If the originating module communicates on a network other than the HS-CAN3, the messaged signals will be sent to the GWM first, then to the HUD module.
| HUD Indication Or Display | Network Message | Originating Module | Originating CAN | Receiving Module |
|---|---|---|---|---|
| Audio display | Audio-navigation switch button states | SCCM | HS-CAN2 | HUD module |
| Audio system response status Audio source status |
ACM APIM (China only) |
HS-CAN3 | ||
| BLIS/ CTA | Side obstacle sensor status-left Side obstacle left warning Cross traffic alert left status |
IPMA | FD-CAN | HUD module |
| Side obstacle sensor status-right Cross traffic alert right status |
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| Clock | Global clock data | BCM | HS-CAN1 | HUD module |
| Cruise control/ACC with stop and go | Cruise control override Cruise control set speed Cruise control status |
PCM | FD-CAN | HUD module |
| Adaptive cruise control follow mode display Adaptive cruise control message display Adaptive cruise control target distance display Adaptive cruise control gap distance display Adaptive cruise control warning request |
IPMA | FD-CAN | HUD module | |
| Adaptive cruise control stop mode Adaptive cruise control stop status display Adaptive cruise control resume display |
IPMA | FD-CAN | HUD module | |
| Distance indication | Adaptive cruise control target distance display | IPMA | FD-CAN | HUD module |
| DTE | Fuel range display Fuel level warning |
IPC | HS-CAN3 | HUD module |
| English/Metric language unit selections | Language selection Temperature unit selection Trip unit selection |
IPC | HS-CAN3 | HUD module |
| HUD adjustment | Steering wheel message center switch data | SCCM | HS-CAN2 | HUD module |
| HUD settings active | IPC | HS-CAN3 | ||
| HUD brightness | Day/night status Illumination dimming level |
BCM | HS-CAN1 | HUD module |
| Ambient light sensor data Ambient light sensor status |
SCCM | HS-CAN2 | ||
| Highway assist | Traffic jam assist status Traffic jam assist warning request |
IPMA | FD-CAN | HUD module |
| Lane centering aid | Traffic jam assist status | IPMA | FD-CAN | HUD module |
| Lane keeping assist | Camera configuration Lane keeping system status display |
IPMA | FD-CAN | HUD module |
| Navigation | Audio-navigation switch button states | SCCM | HS-CAN2 | HUD module |
| Audio system response status Audio source status |
ACM APIM (China only) |
HS-CAN3 | ||
| Outside air temperature | Outside air temperature | FCIM | MS-CAN | HUD module |
| Phone | Voice recognition status | APIM | HS-CAN3 | HUD module |
| Speed display (digital speedometer) | Metric display Vehicle speed display |
IPC | HS-CAN3 | HUD module |
| Speed sign recognition | Traffic sign recognition status request | IPMA | FD-CAN | HUD module |
| Transmission gear indication | Transmission gear display Transmission gear display mode |
PCM | FD-CAN | HUD module |
| Turn indicator (LH/ RH) | Left turn lamp on request Right turn lamp on request |
BCM | HS-CAN1 | HUD module |