2016–2020 Cadillac CT6
By Ray Delgado ✓ Certified Mechanic · Published Sep 21, 2026 · Updated Oct 22, 2026
Save $72 by doing it yourself! Shop cost: $100
Quick answer: Cabin Air Filter Replacement on a 2016–2020 Cadillac CT6 is rated Easy and takes about 15 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.
| Part Name | Part Number | Price | Buy |
|---|---|---|---|
| Cabin air filter for 2016-2020 Cadillac CT6; 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
Follow these steps carefully
The 2016-2020 CT6's cabin filter is behind the glove box, but unlike cars where the box just drops down on its stops, here the whole glove box comes out. Knowing the full removal is needed saves you from fighting a half-dropped box.
Open the glove box and take everything out of it. Squeeze the sides of the box inward toward the middle and let it swing down on its hinges.
I check the blower motor for debris while the filter's out. Leaves in the blower cause noise and imbalance. For cabin filters, I check the blower resistor while I'm there. It's often accessible and fails commonly.
Using a Phillips screwdriver, remove the three screws along the bottom of the glove box and the four screws across the top. Lift the glove box out of the opening and set it aside on a soft surface so the face does not get scratched.
Keep a hand under the cover as it comes free; debris falls out. Behind the opening you will see the rectangular cabin filter cover. Pry its retaining tab gently and pull the cover off.
Slide the old filter straight out of the housing. Note the airflow arrow printed on its frame and which side is the dirty side. Slide the new filter in with the arrow pointing the same direction, pushing it fully in until it sits square.
Set the glove box back into the opening and reinstall all seven screws - three on the bottom, four on the top. Snug them firmly but do not overtighten; these screws thread into plastic and will strip if you lean on them.
Replace this filter about once a year or every 12,000 miles; the CT6's large cabin and long highway runs load the filter steadily even in clean air. Start the car and run the climate system through every fan speed with heat and A/C.
Test your repair before closing everything up. If something doesn't work right, double-check your steps.
⚠️ Common Mistakes to Avoid
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