2001 Rodeo LS Tailgate NOT LOCKING!!
 

I've just bought a 2001 Rodeo LSand realized that the tailgate doesn't lock, I've tried to put the key but it doesn't go in more than 1/3 of it, my factory alarm works but does not lock the tailgate.

Could someone please help me?

THE KEY LATCH IS LOOSE BUT IT'S ABLE TO POP THE GLASS.