The red-dot key is the master key, not the valet key. If that key works the trunk lock it is the master. I would think the valet key either wouldn't go into, or turn the glove box lock. It sounds like the latch is broken.

-J

__________________
1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.