chezy32, there is a special tool and instruction in the owner's manual for unlocking the Top latches. If you don't have the manual, you can download one from the 'sticky' above in this Forum. The tool should be in your tool kit.
If everything fails, you can access the rear latches from the trunk by removing the carpeted panels.
If everything fails, you can access the rear latches from the trunk by removing the carpeted panels.