Blocked or damaged lock or key
they are nice and roomy. 3 guys fit comfortably in my friend's malibu's trunk, while he had sex with a chick in the back seat
In the trunk in a black box.
Apparently your rear trunk latch needs adjusted.
color code for 2000 Malibu is under lid on spare tire carrier in trunk.
There is always the trunk release button in the driver side door, toward the bottom.
pull the strap in the trunk then push the seat down
The bottom portion of the seat will pull out but the back of the seat will have to be unbolted and then slid out to access the trunk.
Take it to a repair guy.
Inside the trunk there are two knobs you can pull. These are located under the top lip of the trunk offset to to right. Pull on the knob and push forward on the seat from inside the trunk.
open trunk,pull back inside lining to trunk,there should be 3 or 4 plastic nuts to take off. then pull out light assembly.
open trunk and look behind the taillights as the bulbs just twist and pull out.
It is located in the trunk on the drivers side behind a carpeted panel. #20 I believe...