The OEM iridium tipped spark plugs in a 3rd generation (2018, 2019, 2020, 2021 & 2022) GM Chevy Equinox SUV with the EcoBoost 1.5 liter turbo inline four cyinder engine should be replaced every 60,000 miles. Check out my DIY tutorial for the procedure (with the compatible replacement part numbers) by clicking on the text link or thumbnail image below.
2018-2022 GM Chevy Equinox EcoBoost 1.5L Turbo I4 Engine Spark Plugs Replacement Guide
The procedure may be the same or very similar for the EcoBoost 2.0L turbo gasoline engine and the 1.6L diesel engine.