Jeep Grand Cherokee 2014 Owner's Manual page 131

When the vehicle is started, the BSM warning light will
momentarily illuminate in both outside rear view mirrors
to let the driver know that the system is operational. The
BSM system sensors operate when the vehicle is in any
forward gear or REVERSE and enters stand-by mode
when the vehicle is in PARK.
The BSM detection zone covers approximately one lane
on both sides of the vehicle (12 ft or 3.8 m). The zone
starts at the outside rear view mirror and extends ap-
proximately 23 ft (7 m) to the rear of the vehicle. The BSM
system monitors the detection zones on both sides of the
vehicle when the vehicle speed has reached approxi-
mately 6 mph (10 km/h) or higher and will alert the
driver of vehicles in these areas.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 129
NOTE:
• The BSM system does NOT alert the driver about
rapidly approaching vehicles that are outside the de-
tection zones.
• The BSM system detection zone DOES NOT change if
your vehicle is towing a trailer. Therefore, visually
verify the adjacent lane is clear for both your vehicle
and trailer before making a lane change. If the trailer or
other object (i.e., bicycle, sports equipment) extends
beyond the side of your vehicle, this may result in the
BSM warning light remaining illuminated the entire
time the vehicle is in a forward gear.
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