To be sure:
* Consult your owner's manual: This is the best resource to find the exact location for your truck.
* Search online: Search for "[your specific Chevy truck model year and trim] cabin air filter location" on YouTube or a car repair site like RepairPal. There are likely videos showing the process.
Don't assume its location based solely on general information. Checking your manual or using a video specific to your truck model will save you time and frustration.