Okay, I'm sure that through searching and reading the manual I missed something, so please don't get upset if it's something obvious I missed or a bug that's already been announced by I can't find anything on this...

 

The ELS siren in multiplayer doesn't work. I can only get the standard siren to work. The manual and everything else in ELS works except for the main ELS siren on/off.

 

Thanks, any help is appreciated...

I have the same issue, When I go to press "H" to turn on the siren nothing happens...

I've experienced this same problem. Although I don't have any siren in a multiplayer session, whether it be ELS or 'actual game'. I thought I must have missed something too because this is dumb.

Has anyone found a fix for this? I have been through the manual several time with no solution. If anyone has found a solution PLEASE reply!

Try the default IV siren key?

In multiplayer the siren is toggled with G.

Remember: you have to have your lights on first.

I am In Lighting Stage 3. My manual siren works along with my air horn. For some bizarre reason my Siren_Toggle will not work. I have remapped several times but still it decides to not cooperate. As for GTA IV's default siren/horn key, nothing. Thanks for the suggestions thus far! Hopefully we can find a fix.