Auxiliary Driving Systems; Blind Spot Monitoring (Bsm) - If Equipped - RAM 2500 2020 Owner's Manual

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118
SAFETY

AUXILIARY DRIVING SYSTEMS

BLIND SPOT MONITORING (BSM) —
IF EQUIPPED
The Blind Spot Monitoring (BSM) system uses two
radar-based sensors, located inside the taillights, to
detect highway licensable vehicles (automobiles,
trucks, motorcycles, etc.) that enter the blind spot
zones from the rear/front/side of the vehicle.
Rear Detection Zones
When the vehicle is started, the BSM warning light will
momentarily illuminate in both outside rearview mirrors
to let the driver know that the system is operational.
The BSM system sensors operate when the vehicle is in
any forward gear and enters standby mode when the
vehicle is in PARK.
The BSM detection zone covers approximately one lane
width on both sides of the vehicle 12 ft (3.8 m). The
zone length starts at the outside rearview mirror and
extends approximately 10 ft (3 m) beyond the rear bum-
per of the vehicle. The BSM system monitors the detec-
tion zones on both sides of the vehicle when the vehicle
speed reaches approximately 6 mph (10 km/h) or
higher and will alert the driver of vehicles in these
areas.
NOTE:
The BSM system DOES NOT alert the driver about
rapidly approaching vehicles that are outside the
detection zones.
The Blind Spot Monitoring (BSM) system may experi-
ence drop outs (blinking on and off) of the side mir-
ror warning indicator lamps when a motorcycle or
any small object remains at the side of the vehicle
for extended periods of time (more than a couple of
seconds).
The vehicle's taillights, where the radar sensors are
located, must remain free of snow, ice, and dirt/road
contamination so that the BSM system can function
properly. Do not block the taillights with foreign objects
(bumper stickers, bicycle racks, etc.).
Radar Sensor Locations
If the system detects degraded performance due to
contamination or foreign objects, a message will warn
you of a blocked sensor and the warning indicators in
side view mirrors will be on. The warning indicators will
remain illuminated until blockage clearing conditions
are met. First clear the taillights around the sensors of
the blockage. After removing the blockage, the following
procedure can be used to reset the system, cycle the
ignition from ON to OFF and then back ON.
If the blockage message is still present after cycling the
ignition and driving in traffic, check again for a
blockage.
The BSM system notifies the driver of objects in the
detection zones by illuminating the BSM warning light
located in the outside mirrors in addition to sounding
an audible (chime) alert and reducing the radio volume.
Refer to "Modes Of Operation" in this section for further
information.
Warning Light Location
The BSM system monitors the detection zone from
three different entry points (side, rear, front) while driv-
ing to see if an alert is necessary. The BSM system will
issue an alert during these types of zone entries.

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