SODR Network Input Messages
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| Active park assist system status | PAM | Disables the CTA warnings during active park assist maneuvers. |
| BLIS®/ CTA enable command | IPC | Used to enable/disable the BLIS® or CTA based on driver input. |
| Gear lever position | PCM | Used to turn the BLIS® and CTA system on and off depending the gear lever position. |
| Ignition key type | BCM | Used to disable the ability to turn OFF the BLIS® and CTA when a MyKey® restricted key is in use. |
| Trailer lamp connected | TRM | Disables the BLIS® and CTA when a trailer is electrically connected to the vehicle. |
| Turn signal status | SASM | Used to generate the secondary alert when a turn signal is activated. |
| Vehicle speed | PCM | Used to activate the BLIS® after an ignition cycle and deactivate the CTA system when the vehicle speed exceeds preset thresholds. |
| VIN information | BCM | Contains VIN information. |
| Wiper status | SASM | Used to determine ambient weather conditions for correct system operation. |
System Diagram - Vehicles With Door Modules
Network Message Chart - Vehicles With Door Modules
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| Active park assist system status | PAM | Disables the CTA warnings during active park assist maneuvers. |
| BLIS®/ CTA enable/disable command | IPC | Used to enable/disable the BLIS® or CTA based on driver input. |
| BLIS® passenger LED status | PDM | Used to confirm the operating status of the RH exterior mirror BLIS®) LED. |
| Gear lever position | PCM | Used to turn the BLIS® and CTA system on and off depending the gear lever position. |
| Ignition key type | BCM | Used to disable the ability to turn OFF the BLIS® and CTA when a MyKey® restricted key is in use. |
| Trailer lamp connected | TRM | Disables the BLIS® and CTA when a trailer is electrically connected to the vehicle. |
| Turn signal status | SASM | Used to generate the secondary alert when a turn signal is activated. |
| Vehicle speed | PCM | Used to activate the BLIS® after an ignition cycle and deactivate the CTA system when the vehicle speed exceeds preset thresholds. |
| VIN information | BCM | Contains VIN information. |
| Wiper status | SASM | Used to determine ambient weather conditions for correct system operation. |
BLIS®
The BLIS® provides alerts to the driver when the vehicle is in a forward gear and the vehicle speed is greater than 10 km/h (6 mph).
The BLIS® can trigger an alert for vehicles that enter the blind zone from the rear, front, or merge into the blind zone from the side. The exterior mirror BLIS®/ CTALED illuminates in the right and/or left exterior mirror when a target is present. For vehicles that pass through the blind zone quickly, typically less than 2 seconds, the BLIS® may not trigger an alert.
If a turn signal is active while BLIS® has detected a target in the blind zone, the BLIS®/ CTALED flashes rapidly. When the turn signal is off, the BLIS® target warnings are a constant LED illumination.
Due to the nature of radar technology, false alerts may occur under certain circumstances. False alerts occur when the LED illuminates with no target present. False alerts up to 3% (3 out of 100 targets) is considered normal operation. False alerts are temporary and self-correcting. False alerts may be caused by sharp turns around a pole or building, jogging pedestrians or fast moving shopping carts.
Missed targets occur when a target is present and the LED does not illuminate. Missed targets up to 1% (1 out of 100 targets) is considered normal operation.
Circumstances that cause missed alerts are:
- Debris build-up or bumper stickers on the rear bumper sides
- Certain maneuvering of the vehicles entering and exiting the blind zone
- Vehicles passing through the blind zone at high rates of speed
- When several vehicles forming a convoy pass through the blind zone
The BLIS® may not detect an adjacent target immediately when the vehicle accelerates from a standing start with another vehicle alongside.