Open Hood Message-Theft Deterrent System Triggered

[silverado2k18]

Hello everyone.  My 2018 Silverado started this on Saturday.  Remote start would not work.  I start the truck with the key, and hood open message appears on the dash.  It alerts me every 30 seconds or so, with the message and a chime.  Drives fine.  Sunday, same thing, except now, the check engine light is on, and an email (several) from onstar, saying the Theft Deterrent System has been triggered.  Anyone else experience this? I contacted the dealer, awaiting a reply from them.

Thanks.

[silverado2k18]

I took it to the dealer yesterday, and it turns out to be a faulty hood latch.  To top it off, the part is on national backorder, with no expexted date of arrival.........