How to Replace the Cabin Air Filter on a 2020 Subaru Outback (Glove Box Method)
Step-by-step instructions with required tools/parts, airflow direction tips, and post-install checks for 2020, 2021, 2022, 2023, 2024
How to Replace the Cabin Air Filter on a 2020 Subaru Outback (Glove Box Method)
Step-by-step instructions with required tools/parts, airflow direction tips, and post-install checks for 2020, 2021, 2022, 2023, 2024
đź”§ Outback - Cabin Air Filter Replacement
Your Outback’s cabin air filter cleans the air that comes through the A/C and heater vents. Replacing it helps airflow, reduces dust/pollen, and can reduce musty smells.
Difficulty Level: Beginner | Estimated Time: 0.3-0.5 hours
⚠️ Safety & Precautions
- 🛑 Turn the ignition OFF and remove the key/fob from the vehicle.
- 🧤 Work gently around the glove box and trim to avoid cracking plastic tabs.
- 🔌 Battery disconnect is not required for this job.
đź”§ Required Tools
You'll need the following tools for this repair:
- Trim removal tool (plastic)
- Phillips #2 screwdriver
- Flashlight
- Nitrile gloves
- Safety glasses
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Cabin air filter - Qty: 1
đź“‹ Before You Begin
- Park your Outback on level ground and set the parking brake.
- Move the front passenger seat back to give yourself space.
- Tip: Take a quick photo before removing parts.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Empty and open the glove box
- Open the glove box and remove everything inside so nothing falls out.
- Use your flashlight to look at the right side of the glove box area.
Step 2: Disconnect the glove box damper
- The glove box damper is a small arm that slows the glove box as it opens (so it doesn’t drop fast).
- Use a trim removal tool (plastic) to gently pry the damper arm off its peg on the right side (it pops off).
Step 3: Drop the glove box down
- Push inward on both sides of the glove box at the same time to release the side “stops.”
- Keep pushing in until the glove box swings down farther, giving access behind it.
Step 4: Remove the cabin filter access cover
- Behind the lowered glove box, locate the rectangular cabin filter cover.
- If your cover uses tabs, press the tabs by hand and pull the cover off.
- If your cover uses screws, remove them with a Phillips #2 screwdriver, then remove the cover.
Step 5: Remove the old cabin air filter
- Slide the old filter straight out.
- Use your flashlight to check for leaves/debris inside the filter slot.
- Tip: Vacuum debris if you have one.
Step 6: Install the new cabin air filter
- Check the airflow marking on the filter (usually an “AIR FLOW” arrow).
- Install the filter in the same direction as the arrow indicates for your Outback.
- Slide it in evenly so it doesn’t bend or crush the pleats.
Step 7: Reinstall the cover and glove box
- Reinstall the cabin filter cover by snapping tabs back in place, or reinstall screws using a Phillips #2 screwdriver (snug only; do not overtighten).
- Lift the glove box back up and push the sides inward again so the stops go back past the opening.
- Reconnect the damper arm to its peg by pushing it on until it clicks (use your trim removal tool (plastic) if needed to guide it gently).
âś… After Repair
- Start your Outback and run the blower on medium-high for 30 seconds.
- Check that airflow is strong and there are no rattles behind the glove box.
- If you hear a tapping noise, reopen the glove box and confirm the filter cover is fully latched.
đź’° DIY vs Shop Cost
Shop Cost: $60-$120 (parts + labor)
DIY Cost: $15-$35 (parts only)
You Save: $45-$85 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.3-0.5 hours.
🎯 Ready to get started?
HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.


















