Subaru Forester: Specifications / Fuses and circuits
Other information:
The 4 sonar sensors are located in the rear
bumper. To ensure the proper operation of
the Reverse Automatic Braking (RAB)
system, observe the following precautions.
Do not affix any stickers or other items
on the sonar sensor or the bumper surface
near the sonar sensors...
When the outside temperature is 378F
(38C) or less, the icy road surface warning
will illuminate to inform the driver that the
road surface may be frozen.
NOTE
The outside temperature indicator
shows the temperature in the area
around the sensor...