Have you noticed a faint foul smell from your heater/AC? We did, so we removed the cabin filter from our car with only 30,000 miles and it was moist and dirty. This is a factory ACDelco replacement filter for your Cadillac. Now this is not a guaranteed fix for smell coming from your HVAC but we can say it did fix ours.

Fits: 2013-2019 Cadillac ATS, 2016-2025 Chevrolet Camaro, and 2023-2026 Chevrolet Colorado.