🔧 Prius - Cabin Air Filter Replacement

The cabin air filter cleans the air coming through your A/C and heater vents. Replacing it helps reduce dust, pollen, and musty odors, and it can improve airflow through the vents.

Difficulty Level: Beginner | Estimated Time: 0.2-0.5 hours

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⚠️ Safety & Precautions

• ⚠️ Park on level ground and shift to P before starting.
• ⚠️ Keep the key fob away from the car (about 10+ feet) so the hybrid system can’t wake up unexpectedly.
• ⚠️ Use gentle pressure on glove box panels and clips to avoid breaking plastic tabs.
• ⚠️ Battery disconnect is not required for this job.

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🔧 Required Tools

You'll need the following tools for this repair:

• Nitrile gloves
• Safety glasses
• Flashlight

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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

• Turn the car fully OFF and confirm the instrument cluster is dark.
• Open the passenger door for easy access to the glove box area.
• Tip: Take a photo before removal.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Empty and open the glove box

• Remove items from the glove box so nothing falls out.
• Open the glove box fully.
• Use a flashlight to look at the right side of the glove box for a small “damper” arm (a damper is a small strap/arm that slows the glove box as it opens).

Step 2: Disconnect the glove box damper arm

• With the glove box open, gently pop the damper arm off its pin on the right side (do this by hand; use the flashlight to see the clip clearly).
• Tip: Pull straight outward—don’t twist.

Step 3: Release the glove box stops so it swings down

• Press the glove box side walls inward (left and right) to clear the “stops” (the stops are the plastic bumps that normally prevent the glove box from dropping).
• While holding the sides in, let the glove box rotate downward toward the floor.

Step 4: Remove the cabin filter access cover

• Behind the lowered glove box, locate the rectangular cabin filter housing door.
• Press the tabs and remove the cover by hand (use the flashlight if needed).

Step 5: Remove the old cabin air filter

• Slide the old filter straight out.
• Keep it level to avoid dumping leaves/debris into the blower box.

Step 6: Install the new cabin air filter

• Check the airflow arrow on the filter frame.
• Install it with the arrow pointing down (toward the floor) for your Prius.
• Slide it in until fully seated and flush.

Step 7: Reassemble the glove box

• Reinstall the filter housing cover by hand until the tabs click.
• Swing the glove box back up.
• Press the glove box sides inward again so the stops pass back into place.
• Reconnect the damper arm on the right side by pushing it onto the pin until it snaps in.

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✅ After Repair

• Turn the car ON and run the fan at different speeds to confirm normal airflow.
• If you hear a ticking/leaf noise, the filter may not be seated—recheck the cover and filter position.
• Tip: Replace about every 12 months.

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💰 DIY vs Shop Cost

Shop Cost: $80-$160 (parts + labor)

DIY Cost: $15-$45 (parts only)

You Save: $65-$115 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.3-0.5 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.