Blind Spot Monitoring: Notes
DESCRIPTION
The Blind Spot Monitoring (BSM) with Rear Cross-Path (RCP) detection systems include the following major components:
| 1. | Refer to: BODY CONTROL MODULE (BCM) . |
| 2. | Refer to: EXTERIOR REARVIEW MIRRORS - BLIND SPOT DISPLAY . |
| 3. | Refer to: RADIO . |
| 4. | Refer to: BLIND SPOT MODULE (BSM) / BLIND SPOT SENSOR (BSS) . |
| 5. | Refer to: INSTRUMENT PANEL CLUSTER (IPC) . |
Blind spot monitoring, if enabled in the radio, monitors rear blind zones on both sides of the vehicle via radar. If a vehicle is sensed in one of the blind spot zones, the driver will be notified via an icon in the outside rear view mirror on that side of the vehicle.
Rear cross path detection monitors for vehicles perpendicular to the rear of the vehicle when in reverse. The system provides feedback to the driver via audible chimes and visual icons. The visual and audible alerts correspond to the side that approaching vehicle.
The BSM system:
- Monitors the vehicle's blind spots.
- Notifies the driver when another vehicle is present.
- Uses radar sensors located in the sides of the tail lamps.
- Illuminates icons in the outside review mirrors.
- Chimes when the driver selects a turn signal on the side that has a vehicle in the zone.
- Notifies driver of vehicles in the blind spot areas when changing lanes, passing vehicles, or if being passed.
- RCP detection notifies the driver of a vehicle crossing the vehicle's path when in reverse.
- The driver can turn the system OFF, ON or ON with Chime. (Note: in RCP mode the chime can not be disabled it is always active).
OPERATION
When the vehicle speed exceeds 10 km/h (6 mph) and the Left Blind Spot Sensor (LBSS) or the Right Blind Spot Sensor (RBSS) module detects an object within 50 km/h (30 mph) of the vehicle speed passing through the monitored zone from the rear of the vehicle, the BSM sensors will request a Blind Spot Display (BSD) activation request which is a yellow Light Emitting Diode (LED) triangle will then illuminate in the upper corner of the appropriate mirror through a Pulse Width Modulated (PWM) circuit to the mirror. If the driver attempts to enter the zone where the object has been detected and with the turn signal activated, the sensor will send out two additional requests over the Controller Area Network - Interior High Speed (CAN-IHS) bus:
- Amplifier (AMP) - A chime will sound.
- Radio (if the vehicle is NOT equipped with an AMP) - The audio speakers will mute.
There are three modes for the BSM system:
- OFF: All visual and audible alerts related to objects of interest in the blind sport zone are suppressed.
- ON with LEDs only: The LBSS shall request a visual LED alert only for the appropriate side exterior rearview mirror if there is an object of interest in the blind spot zone.
- ON with LEDs and chime: The LBSS shall request a visual LED and audible alert for the appropriate side mirror if there is an object of interest in the blind spot range and the turn signal status is "ON" on that side of the vehicle. Otherwise, there will be a visual alert only if the turn signal is "Off" and there is an object of interest in the blind spot zone.
Rear Cross Path (RCP) detection system:
- Uses the LED icons on the outside mirrors to warn of vehicles approaching. The alert corresponds to the side that the vehicle is approaching from.
- Is activated when the vehicle is in REVERSE gear and the blind spot system is enabled to ON or ON with Chime in the Radio.
The RCP detection system monitors the rear detection zones for vehicles that are moving toward the sides of the vehicle with a minimum speed of 5 km/h (3 mph).