hyperref autoref capitalization problems with babel

The manual of hyperref contains an example for this case:

Example for a redefinition if babel is used:

\usepackage[ngerman]{babel}  
\addto\extrasngerman{%  
  \def\subsectionautorefname{Unterkapitel}%  
}

In your case:

\usepackage[english]{babel}
\usepackage{hyperref}
\addto\extrasenglish{%
  \def\figureautorefname{FIGURE}%
}