Viper 457g interface on chevy silverado

I have on 03 silverado with a viper 791xv with a 456g databus interface. 

During the disarm sequence of the factory alarm the perimeter lighting is activated....daytime running lights, backup lights, lights under the rearview mirrors and the domelights. 

When I arm the viper alarmwith the 456g the parking and dome lights flash once and the doors are locked.

When I disarm the viper alarm there is no flash or perimeter lighting. 

Should the 456 control the perimeter lights as well? Or is there something else i should be doing to keep them active?

Thanks