Subaru Forester: Reverse Automatic Braking (RAB) system (if equipped) / Reverse Automatic Braking (RAB) system overview
The system detects objects using sonar
sensors installed in the rear bumper.
- If the system determines a possible
collision with an object in the reversing
direction, automatic deceleration will be
activated. Also, beeping sounds will activate.
- If the vehicle is further reversed, automatic
hard braking will be applied and a
continuous beeping sound will activate.

- When reversing
- When either strong automatic braking or
torque control is applied to prevent
collision (in this case, short warning
beeps or continuous warning beeps will
sound)
- When the vehicle is stopped by the
system (in this case, the continuous
beep will remain sounding)
- Object (e.g., a wall)
Detecting range (width): Approximately 6
in (15 cm) outside of the vehicle width
Range that the system cannot detect:
Approximately 20 in (50 cm) behind the
rear of the vehicle
Detecting range (length): Approximately
5 ft (1...
Other information:
WARNING
To avoid accidental activation of
the system or rendering the system
inoperative, which may result
in serious injury, no modifications
should be made to any
components or wiring of the SRS
airbag system.This includes following modifications...
CAUTION
The Vehicle Dynamics Control system
provides its ABS control
through the electrical circuit of the
ABS. Accordingly, if the ABS is
inoperative, the Vehicle Dynamics
Control system becomes unable to
provide ABS control. As a result, the
Vehicle Dynamics Control system
also becomes inoperative, causing
the warning light to illuminate...