How to Change the Cabin Air Filter on a Chevy Silverado 1500 (10-Minute DIY)

The cabin air filter is one of the easiest and most overlooked maintenance items on the Silverado 1500. Dealers charge $50–$80 to replace it. The filter itself costs $15–$30. The job takes less than 10 minutes with zero tools required. Here's exactly how to do it.

What Does the Cabin Air Filter Do?

The cabin air filter cleans all air flowing through your Silverado's heating, ventilation, and air conditioning (HVAC) system before it reaches you and your passengers. It catches dust, pollen, mold spores, road dust, and debris. A clogged filter causes:

• Reduced airflow from your vents (weak A/C or heat)
• Musty or unpleasant odors from the vents
• Blower motor working harder and drawing more power
• Increased allergens inside the cab

GM recommends: Inspect every 15,000 miles, replace every 25,000–45,000 miles or when visibly dirty. In dusty environments (construction, off-road, desert), replace more frequently.

What Filter Do You Need?

• 2019–2026 Silverado 1500: ACDelco CF117 (or equivalent, e.g., Fram CF-10285)
• 2014–2018 Silverado 1500: ACDelco CF117
• 2007–2013 Silverado 1500: ACDelco CF117 (same filter, same location)

Consider upgrading to a premium activated carbon cabin filter (same part number base, look for "with activated carbon" or "HEPA-style"). These run $5–$10 more and provide better odor filtration — worth it for anyone with allergies or who parks in dusty areas.

Step-by-Step: How to Replace the Cabin Air Filter on a Silverado 1500

The cabin air filter on all 2007–2026 Silverado 1500s is located behind the glove box. No tools needed.

Step 1: Open the Glove Box

Open the glove box completely. Remove any contents (registration, manual, etc.) to give yourself room to work.

Step 2: Release the Glove Box Stops

With the glove box fully open, look at both sides. You'll see plastic tabs or bumpers on the left and right sides that keep the door from opening too far. Squeeze both sides inward simultaneously — this compresses the tabs past the door frame stops, allowing the door to drop down further and fully expose the filter housing behind it.

On some trims, there may be a single cable or strap on the right side that limits travel — just push it off the stop rather than squeezing.

Step 3: Open the Filter Housing

With the glove box dropped down, you'll see a rectangular plastic housing directly behind it. It has a door or cover held by either:

• Two plastic tabs (squeeze to release and pull down), or
• A slide-out cover that pulls straight down

The cover will swing or slide away, exposing the cabin air filter inside.

Step 4: Remove the Old Filter

Slide the old filter straight out toward you. Note which way the airflow arrow is pointing on the filter — you'll need to install the new one the same direction. The old filter will likely be visibly dirty — gray, packed with dust, possibly with leaves or debris from the fresh air intake.

Step 5: Inspect the Housing

Use a flashlight to peek into the housing. Remove any debris that fell in — leaves are common. A quick wipe with a damp cloth helps if there's significant dust buildup inside the housing.

Step 6: Install the New Filter

Slide the new filter in with the airflow arrow pointing the correct direction — typically pointing toward the blower fan (downward or toward the firewall, depending on your specific truck). The filter should slide in smoothly and seat flush in the housing.

Step 7: Close the Housing and Glove Box

Snap the filter housing cover back into place. Lift the glove box back up and push the sides inward slightly to re-seat the stop tabs as you close it.

Step 8: Test

Turn on the HVAC fan to high. You should immediately notice stronger airflow from the vents than before the replacement. If airflow seems unchanged, verify the filter is seated correctly and the housing is fully closed.

Cost Comparison

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Related: GM Vehicle Maintenance Schedule Guide | How to Change the Oil on a Silverado 1500

— GM Service Guy