Subaru Forester: Connecting a trailer / Side mirrors

After hitching a trailer to your vehicle,
check that the standard side mirrors
provide a good rearward field of view
without significant blind spots. If significant
blind spots occur with the vehicle’s standard
side mirrors, use towing mirrors that
conform with Federal, state/province and/
or other applicable regulations.
CAUTION
Direct splicing or other improper
connection of trailer lights may
damage your vehicle’s electrical
system and cause a malfunction of
your vehicle’s lighting system...
Other information:
If the power rear gate detects some
abnormality while operating, an electronic
chirp will sound and the power rear gate
operation will be automatically stopped in
either opening or closing position. In this
case, the system needs to be initialized in
the following order to restart the function
properly...
WARNING
Do not operate the engine with the
air cleaner element removed. The air
cleaner element not only filters intake
air but also stops flames if the
engine backfires. If the air cleaner
element is not installed when the
engine backfires, you could be
burned...