Jeep Wrangler: Blind Spot Monitoring (BSM) — If Equipped / Entering From The Side
Vehicles that move into your adjacent lanes
from either side of the vehicle.

Side Monitoring
The BSM system uses two radar 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...
Vehicles that come up from behind your vehicle
on either side and enter the rear detection zone
with a relative speed of less than 30 mph
(48 km/h)...
Other information:
Use the following procedure to prepare your
vehicle for normal usage.
Bring the vehicle to a complete stop,
leaving it connected to the tow vehicle.
Firmly apply the parking brake.
Start the engine.
Press and hold the brake pedal.
Shift the transmission into NEUTRAL...
Remove the grommets under the rear seat
(one left and one right).
Pull the carpet out to the rear and open the
carpet split around the seat belt
attachment.
Under Rear Seat
Carpet Split
Rear Carpet
Remove the carpet under the load floor and
the side support and then pull the carpet
out...