SODR Network Input Messages

Broadcast Message	Originating Module	Message Purpose
Blind Spot Information System (BLIS®)/Cross Traffic Alert (CTA) enable command	IPC	Used to enable/disable the Blind Spot Information System (BLIS®) or Cross Traffic Alert (CTA) based on driver input.
Gear lever position (automatic transmission vehicles only)	PCM	Used to turn the Blind Spot Information System (BLIS®) and Cross Traffic Alert (CTA) system on and off depending the gear lever position.
Reverse gear (manual transmission vehicles only)	PCM	Used to turn the Cross Traffic Alert (CTA) system on and off when the transmission is shifted in to and out of REVERSE (R).
Ignition key type	BCM	Used to disable the ability to turn OFF the Blind Spot Information System (BLIS®) and Cross Traffic Alert (CTA) when a MyKey® restricted key is in use.
Vehicle speed	PCM	Used to activate the Blind Spot Information System (BLIS®) after an ignition cycle and deactivate the Cross Traffic Alert (CTA) system when the vehicle speed exceeds preset thresholds.
Wiper status	SCCM	Used to determine ambient weather conditions for correct system operation.
Turn signal status	SCCM	Used to generate the secondary alert when a turn signal is activated.
VIN information	BCM	Contains VIN information.

Blind Spot Information System (BLIS®)

The Blind Spot Information System (BLIS®) provides alerts to the driver when the vehicle is in a forward gear and the vehicle speeds is greater than 6 mph (10 km/h).

The Blind Spot Information System (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 Blind Spot Information System (BLIS®)/Cross Traffic Alert (CTA) LED 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 Blind Spot Information System (BLIS®) may not trigger an alert.

If a turn signal is active while Blind Spot Information System (BLIS®) has detected a target in the blind zone, the Blind Spot Information System (BLIS®)/Cross Traffic Alert (CTA) LED will flash rapidly. When the turn signal is off, the Blind Spot Information System (BLIS®) target warnings will be a constant LED illumination.

NOTE: There should be no bumper stickers or body filler material used on the rear side bumper cover in the vicinity of the SODL or SODR.

NOTE: The Blind Spot Information System (BLIS®) is not intended to detect parked vehicles, pedestrians, or objects such as fences, guard rails or trees.

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 Blind Spot Information System (BLIS®) may not detect an adjacent target immediately when the vehicle accelerates from a standing start with another vehicle alongside.