Where is the cabin filter in the Lexus RX 350?
The cabin air filter in most Lexus RX 350 models sits behind the glove box on the passenger side, inside a small rectangular housing. Access it by opening the glove box, lowering it, and removing the cover to replace the filter.
Location and access
The filter is typically mounted behind the glove box on the passenger side of the dash. Access is gained by dropping the glove box and removing the filter housing cover to swap in a new filter.
Model-year notes
While the basic location is consistent across many RX 350 generations, a few trims or recent redesigns may relocate the housing slightly. If unsure, refer to your owner's manual or Lexus service documentation for your exact year and trim.
What you'll need
Before you begin, gather the items below to ensure a smooth replacement process.
- Correct cabin air filter for your RX 350 (often a pollen/carbon filter; verify part number for your year).
- Flat-head screwdriver or a trim removal tool (optional, for releasing the glove box damper or housing clips).
- Clean cloth or compressed air to clear dust from the housing.
- Gloves (optional) to keep hands clean during replacement.
Using the right filter is important for fit and filtration efficiency; many RX 350 applications use an activated carbon layer to help reduce odors and pollutants.
Step-by-step replacement
Follow these steps to replace the cabin air filter safely and effectively.
- Park the vehicle, turn off the engine, and open the front passenger door to access the glove box area.
- Open the glove box and release its stops by gently pressing in on the sides so the box can drop down and expose the filter housing behind it.
- Locate the rectangular filter housing and remove the cover by releasing its clips or screws.
- Take out the old filter and inspect the area for dust or debris; clean as needed.
- Insert the new filter with the airflow arrows pointing toward the cabin interior and ensure it sits flush in the housing.
- Replace the housing cover and reassemble the glove box, then test the HVAC to ensure proper airflow when the system is on.
After replacement, you should notice improved cabin air quality and airflow. If odors persist or you operate in dusty environments, consider replacing the filter more frequently.
Extra tips and caveats
Some RX 350 variants (especially newer trims) might use a slightly different panel or require removing screws in the kick panel to access the filter. If you cannot locate the housing behind the glove box, consult your owner's manual or a service guide for your exact year.
Summary
The cabin air filter on the Lexus RX 350 is located behind the glove box on the passenger side. Replacing it involves dropping the glove box, removing the filter cover, swapping in a new filter with the correct orientation, and reassembling. Regular replacement helps maintain cabin air quality and HVAC performance.
