I’m having the same problem with my 2019 Equinox first time it showed theft attempt but everything worked properly then the next day the open hood message was on so I cleared that and ordered a new latch with switch yesterday. Today the alarm was just going off so I looked on the dash and it showed theft attempt so I unplugged the hood sensor and no alarm so far. I haven’t been able to remote start since this problem started and the only fault code I’ve been getting is hood open sensor