2021 Honda CR-V Cabin Air Filter Replacement — 1.5T Engine

I replaced my 2021 Honda CR-V's cabin air filter in 12 minutes, including getting the car set up and cleaning out the debris that had accumulated in the housing. Honda designed this job to be done by the owner — no tools, no screws, no diagnostic equipment. The filter is behind the glove box, the glove box drops with a 10-second release, and the filter slides straight out and back in. Here's exactly how I do it.

Does Engine Choice Affect This Job?

No. The 2021 CR-V came in two 1.5T configurations:

• 1.5T (L15B7) — Standard CR-V trims (LX, EX, EX-L, Touring)
• 1.5T Hybrid — The CR-V Hybrid uses a combined 1.5T + electric motor system

The cabin air filter location, glove box drop procedure, and filter part number are identical for both the standard 1.5T and the 1.5T Hybrid. This guide covers both.

Filter Specs

Item	Spec
Honda OEM part number	80292-TBA-A11
Dimensions	~10.9" × 9.0" × 1.1"
Service interval	15,000–30,000 miles or 12 months
Location	Behind glove box
Tools required	None
Time	15 minutes

Aftermarket options:

• FRAM CF10134 — Direct fit, ~$15
• Bosch HEPA 6062C — Carbon-activated HEPA, ~$28 (recommended if you have allergies or drive in traffic)
• K&N VF2052 — Washable/reusable, ~$40 (good long-term value if you're keeping the car)

My recommendation: If you live in an urban area or deal with seasonal allergies, the Bosch HEPA carbon filter is worth the extra $13. The stock paper filter is fine for suburban/rural drivers.

Step-by-Step

Drop the Glove Box

1. Open the glove box fully — pull the handle and let it drop to its normal open position.

2. On the right interior wall of the glove box (passenger side), you'll see a plastic stop arm/damper rod — a thin plastic rod approximately 6–8 inches long that prevents the glove box from opening too far. This clips into a small bracket. Push the end of the rod toward the interior (inward) and it releases from its bracket. Let it hang free.

3. Squeeze the sides of the glove box inward with both hands — place your thumbs on the outer face of the box and your fingers on the inner side walls. The glove box walls are flexible plastic; you're compressing them so the side pivot tabs (two small plastic ears, one on each side) can clear the frame stops built into the dashboard.

4. While squeezing, let the glove box drop down past its normal fully-open position. It pivots on its bottom hinge and swings down to hang vertically. This exposes the entire filter housing behind it.

   This step feels wrong the first time — like you're about to break something. The plastic is designed to flex. Apply steady inward pressure on both sides simultaneously, and it will clear the frame stops smoothly.

Remove the Old Filter

5. The filter housing is now visible: a flat rectangular housing with a door held by a small tab. The door is on the bottom of the housing and opens downward (or, depending on production date, slides out toward you).

6. Release the door tab and swing/slide the door open. The filter is inside the housing, stacked flat.

7. Pull the old filter straight out. Before discarding it, note the airflow arrow on the edge of the filter — it indicates which direction air flows through it. On the 2021 CR-V, the arrow typically points toward the passenger compartment (downward or forward, depending on orientation). Remember this before installing the new one.

8. With the housing open, use a flashlight to check for debris — leaves, seed pods, and insects are common. Wipe out the housing with a dry cloth if needed.

9. Dispose of the old filter without shaking it — shaking releases trapped allergens and particulates back into the cabin air intake.

Install the New Filter

10. Slide the new filter into the housing with the airflow arrow matching the direction of the old filter's arrow.

11. The filter should slide in smoothly with no catching. If it catches, pull it back slightly and re-approach at a straighter angle — the housing guides are not very wide and a slight diagonal approach will bind it.

12. Close and latch the filter housing door.

Restore the Glove Box

13. Lift the glove box back up toward its closed position. Squeeze the sides inward again as you raise it so the pivot tabs can clear the frame stops.

14. Once the tabs are above the frame stops, release the sides — the box will spring to its normal fully-open position and seat with a slight click.

15. Reconnect the damper arm: push the end of the rod back into its mounting bracket until it clips in.

16. Close the glove box and open it once more to confirm it opens smoothly and the latch works correctly.

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Signs It's Time to Replace

• Musty or stale smell from the HVAC vents (especially on recirculate mode)
• Reduced airflow volume at the same fan speed — a clogged filter restricts HVAC output
• Visible grey-brown contamination on the filter face
• Unknown service history (always replace on a used 2021 CR-V you just bought)
• Spring/fall seasonal timing — a fresh filter before allergy season is good practice

The Oil Dilution Note for 1.5T Owners

While you have the car up for maintenance: if you own the non-hybrid 1.5T, be aware that this engine has a known gasoline-into-oil dilution issue in cold climates with short-trip driving. The gasoline in the fuel injection system can condense and enter the crankcase during cold starts before the engine reaches operating temperature. If you smell gasoline from your oil dipstick, change your oil sooner than the monitor suggests. The 2018 Honda CR-V oil dilution inspection guide covers the diagnosis and mitigation steps in detail — the 2021 1.5T has the same potential issue in cold climates.

Cost Comparison: DIY vs. Dealer

	DIY	Honda Dealer
Cabin air filter	$15–$40	Included
Labor	$0	$45–$75
Total	$15–$40	$65–$110+

Savings: $50–$75 per service. This is a 15-minute job you never need to pay a shop for.

For more Honda CR-V maintenance guides, the 2021 Honda CR-V oil change guide covers the 1.5T full synthetic spec and oil dilution monitoring. If you're also maintaining an Accord, the 2019 Honda Accord cabin air filter guide uses a nearly identical glove box drop procedure.

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