Webask a mechanic online, 24 hours a day here: Webi’ve been having some issues with my chevrolet equinox recently, and i keep seeing the ‘service esc’ light pop up on the dashboard. It’s pretty frustrating, and i’m. Service esc is a safety feature in modern vehicles, including the chevy equinox, that monitors various parameters like wheel speed,. Webyour equinox’s steering angle sensor tells the esc system which way you’re turning the wheel. When this sensor fails, it can trigger the service esc light.