Using your entry remote, lock and unlock the doors.
This happened to me when I had the battery changed. Subaru tech told me to lock and unlock with the remote and it worked.
the flashing security light in the dash is not flashing and vehicle will not start
That is your security.
take some rubbing alcohol on paper towel and clean your ignition key, see if that works. It worked for me
If it is a small, red flashing light in the upper right area of the dash panel, it is the light indicating that the anti-theft system is armed.
If the ABS light is flashing it means the system is malfunctioning but still working. The dash light behind the speedometer is burnt out.
alarm arming light
You need to get your brakes checked
might be a misfire in a cylinder...
sell it
On my Subaru Forester the instrument panel lamps are dimmed by turning a ring on the turn signal stalk.
leave the ignition turned on for 45mins or until the red security light on the dash has stoped flashing then start beware if the engine stalls or you turn the engine off you have to wait anutha 45mins
my dimmer light in the dash keeps flashing even when the lights are not turned on