How to respond when your car's battery light goes on<br>Resist the urge to panic. When your battery light comes on, it sometimes results in a very simple solution. Look at your gauges.
sometimes car lights come on 
The author is insinuating that car lights sometimes come on for smaller reasons, which intuitively means they sometimes come on in general
( z1 come-on :ARG1 ( z2 light :mod ( z3 car ) ) :frequency ( z4 sometimes ) )