What is the 2004 Chevy Silverado 2500 cabin air filter location?

The 2004 Chevy Silverado cabin air filter can be found underneath the glove box on the passenger side. You will have to remove the glove compartment to gain access to replace the filter. A replacement filter will cost about $10 - $30 depending on the brand and if it's an aftermarket or OEM product. You will want to change the filter every 30,000 miles or if You notice the cabin of Your truck to have a musty smell it may be time to change it. Sometimes the condensation from the A/C will drip onto the filter and cause it to mold and give off an unfriendly smell. There will be a couple of bolts and screws that You will have to remove to gain access and You will need a Phillips screwdriver and ratchet/socket set.