Air Cleaner/Engine Air Filter
The air cleaner/engine air filter is located in the engine compartment on the passenger side of the vehicle. See Engine Compartment Overview.
When to Inspect the Air Cleaner/Engine Air Filter
For replacement intervals and to inspect the air cleaner/engine air filter, see the Maintenance Schedule.
How to Inspect the Air Cleaner/Engine Air Filter
Do not start the engine or run the engine with the air cleaner/filter housing open. Before removing the engine air cleaner/filter, make sure that the air cleaner/filter housing and nearby parts are clean of dirt and debris. Remove the engine air cleaner/filter. Lightly tap and shake the engine air cleaner/filter (away from the vehicle) to dislodge dust and dirt. Inspect the engine air cleaner/filter for damage and replace it if damaged. Do not clean the engine air cleaner/filter or components with water or compressed air.
To inspect or replace the engine air cleaner/filter:

Shown with 1.5 L gasoline engine, 1.6 L diesel engine and 2 L gasoline engine. Similar engine
- Screws
- Air Duct Clamp
- Electrical Connector
- Open the hood. Refer to Hood.
- Loosen the clamp screw on the air duct clamp (2) and remove the air duct hose from the cover.
- Remove the four screws (1) and remove the air cleaner/filter cover, holding the wiring harness electrical connector (3) connected to the sensor.
- Pull the cover up, and while holding the cover, remove the air cleaner/filter.
- Inspect or replace the air cleaner/filter.
Test yourself
A quick GMC Terrain quiz: every answer comes with an explanation and a link to the manual page.