The cabin air filter on a 2018 Honda Accord is located behind the glove box on the passenger side. To access it, lower the glove box, remove the filter cover, and swap in a new filter. No specialized tools are required for a standard replacement.
Location and access
In the 2018 Accord, the filter sits in a rectangular housing behind the glove box on the passenger side of the dash. The easiest way to reach it is to open the glove box fully, release its stoppers, and lower the box so you can see the housing and its cover.
What you’ll need
Before you start, have a clean, well-lit workspace and the correct replacement cabin air filter for your vehicle. Some trims may require a small flat-head screwdriver or trim tool to release the glove box stops, but most replacements can be done by hand.
Before you begin the replacement, prepare the following:
- Park the car, turn off the engine, and set the parking brake.
- Gather the replacement cabin air filter of the correct size for the 2018 Accord.
- Optionally have a flashlight to aid visibility inside the glove box area.
Concluding note: Once you have the necessary items and access is gained, you’ll swap the filter and reassemble the glove box. Ensure the filter is oriented with the airflow arrows pointing toward the vents.
Step-by-step replacement
Below are the typical steps to replace the cabin air filter on a 2018 Honda Accord. The process is straightforward and can be completed in a few minutes with basic tools.
- Open the glove box and gently push in on the sides to release the stoppers, allowing the box to drop downward.
- Locate and remove the rectangular cabin air filter housing cover by unclipping or sliding it open.
- Take out the old filter and note its orientation. Align the new filter so the arrows on the filter point in the direction of airflow (toward the vents).
- Replace the filter in the housing, reattach the housing cover, and lift the glove box back into its closed position, ensuring the stoppers click into place.
- Start the vehicle and run the HVAC system to verify air is flowing normally and there are no unusual noises.
After replacing, you should be ready to experience improved cabin air quality and HVAC performance. If you encounter resistance or the glove box does not sit flush, double-check that the filter is properly seated and the housing cover is fully secured.
Maintenance notes and what to expect
Cabin air filters trap dust, pollen, and other particulates, so periodic replacement improves air quality and HVAC efficiency. Check your owner's manual for the recommended replacement interval, which typically ranges from about 12 months to 15,000 miles depending on driving conditions and environment.
Summary
The 2018 Honda Accord’s cabin air filter lives behind the passenger-side glove box. Access it by lowering the glove box, removing the cover, and replacing the filter with the arrows pointing toward the vents. Reassemble the glove box, and test the HVAC system to ensure proper airflow. For accurate replacement intervals, consult the vehicle’s owner manual.