There's two issues with Google Maps in bubor's CM10.2 build 20130902:
1. On a clean install, Voice Recognition is not installed. This makes Google Maps crash when pressing the Voice Search button.
Solution: Install Google Voice Search
2. When Maps is open and the phone goes to sleep (both timeout and pressing the power button work), after turning the screen back on, Maps only displays a white screen (flickering when trying to scroll).
This seems to be an NVidia/GL problem, this pops up in logcat, just before sleep and just after wake up:
E/gralloc ( 115): NvGrPost: Failed, TEGRA_DC_EXT_FLIP 6 No such device or address
Later, there's multiple failed calls to NvRmChannelSubmit.
Restarting Maps fixes the problem.
Full logcat dump attached.
Solution: I have no idea.
/edit: Same in the 20130904. Keyboard light confirmed working, though.