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:
CAUTION
The Auto Start Stop system is designed
to automatically stop and
restart the engine for a short period
of time during idling. Do not use the
system when parking the vehicle
normally.
So that it can be used safely and comfortably,
in addition to driver operations, the
Auto Start Stop system is designed to
constantly monitor the vehicle conditions
as well as the environment inside and
outside the vehicle, in order to control
stopping and restarting of the engine...
The indicator light flashes during activation
of the skid suppression function and during
activation of the traction control function.
NOTE
The light may remain illuminated for
a short period of time after the engine
has been started, especially in cold
weather...