The cabin air filter in a 2020 Nissan Altima is located behind the glove box on the passenger side, inside a rectangular housing. Accessing it requires lowering the glove box and removing a cover to reach the filter.
Understanding the exact location helps owners maintain interior air quality and HVAC efficiency. Replacing the cabin air filter is a routine maintenance task that is typically recommended every 15,000 to 30,000 miles, depending on driving conditions and environment.
Location and access
To reach the cabin air filter, start with the glove box on the passenger side. The filter sits behind the glove box, inside a rectangular housing. You will need to drop the glove box by releasing its stops or damper to access the filter.
Before you begin, make sure the vehicle is off and the area is clear of items that could fall. A flashlight can help you see the housing, and you may need to gently squeeze the sides of the glove box to release the stops.
What you'll need before you start
- New cabin air filter that matches the 2020 Altima (check the owner's manual or retailer for compatibility)
- flashlight or phone light for visibility
- Clean cloth or rag to wipe away any dust
- Possibly a small flathead screwdriver to help lift the housing cover tabs if needed
With the necessary tools ready, follow these steps to access and replace the filter.
- Open the glove box and remove its contents so you can access the sides and damper.
- Gently squeeze the sides of the glove box inward to release the stops, or press the damper tab to allow the glove box to drop down fully.
- Locate the rectangular access panel or housing behind the glove box and pull it away to reveal the cabin air filter cover.
- Release the clips or tabs on the filter housing cover and slide the old filter out. Note the direction of the airflow arrows on the filter.
- Insert the new filter with the arrows pointing toward the HVAC unit (in the direction of airflow), reseat the housing cover, and reassemble the glove box.
After replacing the filter, close the glove box securely and test the HVAC system to ensure airflow is normal and unobstructed.
Tips for maintenance and troubleshooting
If you notice reduced airflow, unusual odors, or increased dust inside the cabin, replacing the filter is a good first step. If symptoms persist after replacement, it may be worth having the HVAC system and ducts inspected for leaks or blockages.
Summary
In a 2020 Nissan Altima, the cabin air filter is tucked behind the passenger-side glove box inside a rectangular housing. Access it by lowering the glove box, removing the filter cover, and swapping in a new filter with correct airflow orientation, then reassembling. Regular replacement helps maintain interior air quality and HVAC efficiency.