The 2021 Honda CR‑V has two air filters you may need to locate and replace: the engine air filter inside the engine bay and the cabin air filter behind the glove box on the dashboard. Knowing their locations helps you perform routine maintenance without going to a shop.
Engine air filter location
The engine air filter is housed in a rectangular plastic box in the engine bay, typically on the passenger side near the front of the engine compartment. Access is gained by releasing the clips or screws that hold the lid, then lifting it off to reveal the filter.
- Park on a level surface and turn off the engine. Engage the parking brake for safety.
- Open the hood and locate the engine air filter housing on the passenger side of the engine bay. It’s a black plastic box with a large intake hose attached.
- Release the clips or remove the screws securing the housing lid. Use a screwdriver if needed.
- Remove the old filter and inspect the housing for debris or dirt.
- Insert the new filter with the airflow arrows pointing toward the engine, ensuring it sits evenly in the housing.
- Reattach the housing lid and secure all clips or screws firmly.
- Close the hood and start the engine to confirm smooth operation.
If your CR‑V has a slightly different intake setup, follow any labels or markings on the air box to ensure proper orientation and fit.
Cabin air filter location
The cabin air filter on the 2021 CR‑V is located behind the glove box on the passenger side of the dashboard. Access typically requires lowering or removing the glove box and removing a small panel or cover to reach the filter.
To replace the cabin air filter, you’ll first need to clear the area around the glove box and prepare a replacement filter suited for the vehicle’s HVAC system.
Before you begin, prepare a clean workspace and a replacement cabin filter of the correct type. The following steps guide the process.
- Park and turn off the vehicle. Open the glove box and remove any contents.
- Gently disengage the glove box stops or damper arm so the box can drop down for access.
- Locate the cabin air filter cover at the back of the glove box area and release the clips or screws to remove the cover.
- Take out the old cabin filter and note the airflow direction indicated on the filter or housing.
- Insert the new filter with the arrows pointing toward the inside of the vehicle, then reattach the cover securely.
- Reposition the glove box, reattach the stops/damper arm, and close the glove box cleanly.
Regular inspection and replacement help maintain cabin air quality and HVAC performance, especially in dusty or polluted environments.
What you’ll need
Have a replacement engine air filter and a replacement cabin air filter ready, along with basic tools (a screwdriver if needed) and a flashlight to inspect the housings for debris.
Summary
In the 2021 Honda CR‑V, the engine air filter sits in a rectangular housing in the engine bay on the passenger side, while the cabin air filter is behind the glove box on the passenger side of the dashboard. Accessing and replacing both filters is a straightforward DIY task that can improve engine performance and interior air quality. For exact replacement intervals, consult the owner’s manual or Honda’s maintenance schedule, as recommendations vary by driving conditions and model configuration.