If you need to change a burnt out dome light bulb (also known as the rear passenger courtesy reading lights or “room lamps”) in your 2nd generation 2016, 2017, 2018, 2019, 2020 and 2021 Mazda CX-9, check out the DIY tutorial for the procedure (with the compatible replacement part number) by clicking on the text link or thumbnail image below.
2016-2021 Mazda CX-9 Dome Light Bulbs Replacement Guide
