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2016–2022 Lexus RX

2016-2022 Lexus RX — Cabin Air Filter Replacement

By Tom Becker ✓ Certified Mechanic · Published Sep 21, 2026 · Updated Oct 22, 2026

🔧 Easy 15–20 minutes $28 DIY

Save $72 by doing it yourself! Shop cost: $100

Quick answer: Cabin Air Filter Replacement on a 2016–2022 Lexus RX is rated Easy and takes about 15–20 minutes. You'll need 2 tools for this job, and parts cost about $28. This guide walks you through the full job step by step, including the mistakes to avoid.

Quick Video Tutorial

Parts You Need

Total Cost
$28.00
Part Name Part Number Price Buy
Cabin air filter for 2016-2022 Lexus RX 350; verify arrows, size, and VIN/trim fitment — $28.00

About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.

💡 Pro tip: Order all parts at once to save on shipping

Step-by-Step Instructions

Follow these steps carefully

1

Confirm the filter and its unusual tray setup

Buy a cabin filter listed for the 2016–2022 Lexus RX (RX 350 or RX 450h, fourth generation). Unlike most cars, the RX's filter rides in a slide-out plastic tray inside the blower housing behind the glove box.

2

Switch off and empty the glove box

Switch the ignition off and empty the glove box. This full removal is normal for this model.

3

Slide the filter tray out of the blower housing

Behind where the glove box sat you will see the rectangular filter tray seated in the blower unit. Grip its front edge and pull it straight toward you until it releases; it should slide, not yank.

4

Lift the old filter from the tray and check the arrow

Lift the old filter out of the tray and look at the airflow arrow on its frame — on the RX it points down, toward the blower, when the tray is reinstalled.

5

Clean the tray and the housing mouth

Vacuum the tray itself and the mouth of the blower housing, clearing dust and any leaf fragments. Wipe the tray rails with a damp cloth so the tray slides smoothly.

6

Seat the new filter and slide the tray home

Slide the tray back into the blower housing until you feel and hear it click fully seated, then refit any small cover panel.

7

Rehang the glove box

Offer the glove box up at a slight tilt so its rubber stops pass inside the dash, then push the hinge pins back through on both sides and snap the box shut.

🔧 Mechanic's note — Tom Becker

I've seen this exact mistake come through the shop: Offer the glove box up at a slight tilt so its rubber stops pass inside the dash, then push the hinge pins back through on both sides and snap the box shut.

All Done!

Test your repair before closing everything up. If something doesn't work right, double-check your steps.

⚠️ Common Mistakes to Avoid

  • • Yanking the filter tray instead of sliding it, which can crack the tray rails
  • • Forgetting the hinge pins' order and forcing the glove box back without them seated
  • • Installing the filter arrow-up in the tray, reversing airflow through the blower
  • • Not pushing the tray until it clicks, leaving a gap that whistles at high fan speed