Surely you know that they have made Subarus for a lot of years, at least since the early 70s, and made a lot of different models. They started out with sealed beam headlamps which take an entirely different type of bulb and different method of replacing.
Perhaps it would be best if you checked with a local garage. If they will allow you to watch you can decide if you have the skill to change it yourself next time.
See "Headlight" on page 52 of chapter 11 "Maintenance and Service" in your "OWNER'S MANUAL".....
To replace the low beam headlight on a 2006 Subaru Legacy, first, open the hood and locate the headlight assembly. Remove the plastic cover or dust cap at the back of the headlight, then disconnect the power connector from the bulb. Twist the bulb socket counterclockwise to release the old bulb, then insert the new bulb and twist it clockwise to secure it. Reconnect the power connector and replace the cover before closing the hood.
Replace headlight bulb only when blown.
To replace the low beam headlight on a 2003 Subaru, start by opening the hood and locating the headlight assembly. Remove the plastic cover or any clips that secure the headlight housing, then disconnect the power connector from the back of the headlight bulb. Carefully twist and pull out the old bulb, and then insert the new bulb, making sure not to touch the glass with your fingers. Reconnect the power connector and reassemble any covers or clips before testing the new headlight.
To replace the headlight on a 1992 Subaru SVX, first, open the hood and locate the headlight assembly. Remove the screws or clips holding the assembly in place, then gently pull it out. Disconnect the electrical connector and remove the old bulb by twisting it counterclockwise. Insert the new bulb, reconnect the electrical connector, and reattach the headlight assembly. Finally, test the new headlight to ensure it works properly.
To replace the left front headlight on a 2006 Subaru Outback, first, open the hood and locate the back of the headlight assembly. Disconnect the wiring harness by squeezing the tabs and pulling it off. Remove the rubber cover, then twist and pull out the old bulb. Insert the new bulb without touching the glass, replace the rubber cover, and reconnect the wiring harness before testing the new headlight.
On older vehicles you replace the entire headlight. On the newer vehicles you just replace the bulb unless the headlight assembly is damaged.
From under the hood, twist off the cover behind the headlight, then turn the collar that holds the bulb in place. Remove the bulb and replace it, reversing the above directions. DON'T TOUCH THE GLASS ON THE NEW BULB, DIRT OR GREASE WILL CAUSE IT TO BURN OUT QUICKLY.
How do you replace headlight bulb on 2004 Mazda Tribute?
How do you replace a 1999 Ford Escort headlight bulb?"
“how to replace headlight bulb 2003 park ave”
To replace the parking light bulb on a 2005 Subaru Forester, first, open the hood and locate the back of the headlight assembly. Remove the bulb socket by turning it counterclockwise. Pull the old bulb straight out and insert the new bulb into the socket, ensuring it’s secure. Finally, replace the bulb socket back into the assembly and turn it clockwise to secure it.