Honda Odyssey Service Manual: Basic distance function

The BSI radar unit radiates 24 GHz radar waves within the range of 9.84 ft (3 m) toward the rear and 9.84 ft (3 m) on both sides horizontally and 20 degrees on both sides toward the rear. It receives the reflected radar waves when another vehicle enters in this alert area.

Aiming function

The BSI radar unit has a small amount of auto-aiming capability. Straighten the body when auto-aiming is not possible.

Self-Diagnostic function

The BSI radar units have a self-diagnostic function that displays the self-diagnosis information in the MID when the system turns on after pressing the engine start/stop button to select the ON mode.

Sensitivity-Lowering detection function

When the detecting ability of the BSI radar units are hampered by dirt or other contaminants around the rear bumper that covers BSI radar units, the BSI radar units outputs this condition to the MID until the function recovers.