Dead battery key stuck in ignition

First, look for an emergency release just below the ignition lock. If there isn't one you'll need to hook up jumper cables or a jump box to the battery terminals to energize the solenoid to release the key. Hope that helps! Jim

My Equinox’s battery also died due to age, so I had the same problem, after I hooked up a capacitor type jump box on the battery everything started working as it should. Still has to replace the battery.

Answer not posting

Turn the steering wheel one way or the other and see if you can get them out