As a long shot you could try to reboot the BCM.
Remove the negative battery cable from the battery for approx. 30 minutes then reconnect it.
The dealer may need to reload the software due to the volts/amps spike from jumping.
The radio theft deterrent system can lock the infotainment system for a variety of reasons.
When it does this it will set a DTC starting with the letter B.
Are you still under warranty?
2014 Equinox LTZ FWD 3.6L. V-6 (LFX)
GM6T70 Transmission-Gen II(M7W)
Crystal Red Tintcoat-Brownstone Leather-(FE2) Suspension-18" Wheels
Build Date: Nov. 04, 2013-Delivery Date: Nov. 25, 2013
Last edited by rednox301; 05-04-2018 at 01:22 PM.