Where is the cabin air filter on a 2021 Honda CRV?

The cabin air filter on a 2021 Honda CR-V is located behind the glove box on the passenger side, inside the HVAC housing. Access it by lowering the glove box and removing the filter cover.

Location and access

In the CR-V, the filter sits inside the HVAC unit behind the glove box. You’ll typically access it by dropping the glove box enough to reach a small access door on the filter housing.

How to access and replace

To access and replace the cabin air filter on the 2021 CR-V, follow these steps:

1. Open the glove box and remove any items inside.


2. Gently press the sides of the glove box inward to release the stoppers and allow the box to drop down. If your model uses a glove box damper, you may need to unclip or detach it to free full movement.


3. Look for the rectangular cabin air filter access door on the HVAC housing behind the glove box and open it by squeezing the tabs or lifting the door as designed.


4. Remove the old filter from the housing, noting its orientation.


5. Insert the new filter with the arrows on the filter pointing toward the blower motor (into the dash). Make sure it seats flat and square in the housing.


6. Reattach the filter cover and secure the housing door.


7. Lift the glove box back up, reattach the damper if you removed it, and close the glove box. Run the HVAC for a minute to confirm air is flowing properly.

With the filter replaced, reassemble the glove box and ensure the door closes securely. Running the HVAC briefly helps confirm there are no loose parts and that airflow feels normal.

Summary

The cabin air filter on the 2021 Honda CR-V lives inside the HVAC housing behind the passenger-side glove box. Access is typically gained by lowering the glove box and removing a small access panel, then replacing the filter with the correct orientation. No special tools are required, and replacement is commonly recommended once a year or every 15,000 miles, whichever comes first, with more frequent changes advised in dusty or high-pollen environments. Always reassemble carefully and test the system after replacement.