Before you begin
This guide will walk you through the steps for changing the cabin air filter in your 2003-2015 Nissan Armada. The repair is demonstrated on a 2012 Armada but should apply to all of the first generation. A cabin air filter is important to replace because over time it gets dirty and will no longer be effective. You and your passengers are more likely to be exposed to dust and other allergens that can be bad for your health. It's important to change the cabin air filter every 15-30 thousand miles.