The cabin air filter in a 2019 Nissan Altima is located behind the glove box on the passenger side. Access it by lowering the glove box and removing a small rectangular cover that houses the filter.
Location and access
In this model year, the filter sits inside a rectangular housing on the passenger side of the dash, just behind the glove box. The glove box damper (the little arm on the right) allows the box to drop down enough so you can reach the filter housing.
What you’ll need
Minimal tools are usually required. Have a replacement cabin air filter that matches your trim level and a flashlight to illuminate the housing if needed. No specialized tools are typically necessary.
To access the filter, follow these steps:
- Open the glove box and remove its contents.
- If your model has a glove box damper, detach or let it swing free so the glove box can drop down fully.
- Behind the glove box, locate the rectangular filter housing and release the cover by pressing the clips or tabs along the sides, then lift it off.
- Take out the old cabin air filter and note its orientation for the new one.
- Insert the new filter with the arrows pointing toward the blower motor (in the direction of airflow), reseal the housing, and reattach the cover. Lift the glove box back into place and reattach the damper if used.
With the filter replaced and the glove box resecured, test the HVAC to ensure air is flowing properly and there are no unusual odors. Replacement intervals are generally every 15,000–30,000 miles, depending on driving conditions and environment.
Summary: In a 2019 Nissan Altima, the cabin air filter is hidden behind the passenger-side glove box. Replacement is a quick, tool-light task involving lowering the glove box, swapping the filter in its housing, and reassembling everything to restore clean interior air and HVAC performance.