Lexus 2004 GX470 Owner's Manual page 245

AIR CONDITIONING
1. Open the glove box and unhook the cip as shown
above.
2. Push each side of the glove box to disconnect the
claws.
230
3. Take out the filter case.
4. Remove the filter from the filter case.
5. Inspect the filter on the surface.
If it is dirty, it should be replaced.
When installing the filter in the filter case, keep the arrow
pointing up.