Headlight flasher
Subaru Tribeca / Subaru Tribeca 2006-2024 Owners Manual / Instruments and controls / Light control switch / Headlight flasher
CAUTION
Do not hold the lever in the flashing position for more than just a few seconds.
To flash the headlights, pull the lever toward you and then release it. The high beam will remain on for as long as you hold the lever. The headlight flasher works even though the light switch is in the “OFF” position.
When the headlights are on high beam,
the high beam indicator light 
on
the
combination meter also illuminates.