The cabin air filter in a 2019 Crosstrek sits behind the glove box on the passenger side; you access it by lowering the glove box and removing a small cover to reach the filter housing.
In this article, we outline exactly where to find the filter, how to replace it, and tips for keeping your Crosstrek’s HVAC system clean and running efficiently.
Where to locate the cabin air filter
In the 2019 Crosstrek, the cabin air filter is housed behind the passenger-side glove box. Access is gained by dropping the glove box and removing a rectangular cover that hides the filter cavity.
What you'll need
Gather these items before you begin so the replacement goes smoothly.
- New cabin air filter compatible with the 2019 Crosstrek (OEM or reputable aftermarket)
- Flashlight (optional but helpful for visibility)
- Small flat-head screwdriver or trim tool (optional, for releasing clips)
With these items on hand, you’re ready to proceed with the replacement.
Step-by-step replacement
The steps below guide you through removing the glove box, accessing the filter, and installing a fresh one.
Orientation and fit
When you install the new filter, align the arrows on the filter with the direction of airflow through the HVAC system. This ensures the air moves correctly through the filter once the housing is reassembled.
- Park safely, turn off the engine, and open the glove box. Gently squeeze the sides to release the stoppers and lower it fully to expose the cavity.
- Look to the far right side of the glove box cavity for the rectangular filter housing cover and detach it by releasing the clips or latch.
- Remove the old filter, noting its orientation so you can install the new one the same way.
- Insert the new filter with the arrows pointing in the direction of the airflow, then reseat the housing cover and secure the clips.
- Raise the glove box back into place and ensure it latches securely.
After replacing the filter, power on the HVAC briefly to confirm even airflow and listen for any unusual noises that might indicate a loose panel.
Maintenance tips
The Crosstrek cabin air filter should typically be replaced every 12,000–15,000 miles or at least once a year, whichever comes first. Dusty conditions, heavy pollen seasons, and urban driving can shorten the interval, so check the filter more often if you drive in challenging environments. Always refer to the owner’s manual for the manufacturer’s specific guidance.
Summary: For a 2019 Subaru Crosstrek, the cabin air filter is located behind the passenger-side glove box. Access it by dropping the glove box and removing the small cover, then replace the filter with the airflow arrows oriented toward the HVAC system. Regular replacement improves interior air quality and HVAC performance.