The cabin air filter on the Saturn Vue is on the passanger side up on the firewall. I think there is like 3 or 4 screws to remove. It is on the upper flat part of the firewall.
Transmission
inside gas tank
under the windshield wipers there is a large black plastic trim that extends the width of the vechicle, it is called the cowl, on the passenger side of this cowl there is a section of about a foot by a half of foot that is secured by 4 push pins, remove the pins to locate the cabin filter
inside gas tank
under the hood
Saturn Vue was created in 2002.
I don't know about the 3.5L, but on the 2003 Saturn Vue 2.4L and the 3.0L, it's in the fuel filter. You can get the fuel filter for the 2.4L at any auto parts house, around $70.00. The 3.0L fuel filter/regulator, is a dealer item.
The Cabin air filter is in the cowl on the passengers side. To access it raise the hood, look at the cowl on the passenger side. You should see a panel with 5 or 6 black push in retainer clips.
4.5 quarts with oil/filter change.
it is beside the fuel tank on the drivers side
On the 2002 Vue with the v6 engine, the sensor is on the side of the engine. The sensor is right beside of the oil filter.
The filter on this vehicle is on the inside of the fuel tank. This is the trend in a lot of newer vehicles.