🔧 Cabin Air Filter - Replacement

Your Sierra uses a cabin air filter behind the glove box. Replacing it helps restore airflow and reduce dust, odors, and HVAC strain. This is a simple job and a good first DIY repair.

Difficulty Level: Beginner | Estimated Time: 0.3-0.6 hours

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⚠️ Safety & Precautions

• Turn the ignition off before starting.
• Work carefully around the glove box so you do not crack the hinges or stops.
• If you have an active passenger airbag warning or glove box damage, stop and inspect first.
• No battery disconnect is required for this repair.

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🔧 Required Tools

You'll need the following tools for this repair:

• Trim removal tool
• Flashlight
• Gloves

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Cabin air filter - Qty: 1

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📋 Before You Begin

• Park on level ground and set the parking brake.
• Make sure the ignition is off.
• Open the passenger door for easier access to the glove box.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Empty the glove box

• Remove everything from the glove box so it can swing down freely.
• Keep the screws and clips organized.

Step 2: Release the glove box stops

• Use your hands to gently squeeze the sides of the glove box inward.
• Let the glove box swing down past the stops and hang open.
• If needed, use a trim removal tool to gently help release any tight tabs.

Step 3: Remove the cabin filter access cover

• Locate the filter door behind the glove box.
• Use a trim removal tool or your fingers to unclip the cover.
• Set the cover aside.

Step 4: Remove the old cabin air filter

• Pull the old filter straight out.
• Note the airflow arrow direction on the old filter before removing it.
• Take a quick photo before removal.

Step 5: Install the new cabin air filter

• Slide the new filter into the housing with the airflow arrow facing the same direction as the old one.
• Make sure the filter sits flat and fully seats in the housing.

Step 6: Reinstall the cover and glove box

• Snap the filter access cover back into place.
• Lift the glove box back up and push the sides inward slightly so the stops clear the opening.
• Close the glove box slowly and make sure it latches normally.

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✅ After Repair

• Turn the fan on and check for stronger airflow.
• Listen for rattles from the glove box area.
• If airflow is still weak, inspect the filter orientation and the housing for debris.

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💰 DIY vs Shop Cost

Shop Cost: $80-$150 (parts + labor)

DIY Cost: $15-$40 (parts only)

You Save: $65-$110 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.3-0.6 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.