The lamps inside the vehicle will go on when any door is opened. These lamps fade out about 20 seconds after all of the doors have been closed or when the ignition is turned to ON/RUN. These lamps will also go on when pressing the trunk release, unlock symbol, or the horn symbol button on the Remote Keyless Entry System (RKE) Transmitter.
After the key is removed from the ignition, the lamps inside the vehicle stay on for about 20 seconds to provide an illuminated exit.
Dome Lamp
Mirror Reading LampsChevrolet Cobalt Owners Manual. Remote Vehicle Start
Your vehicle may have a remote start feature.
This feature allows you to start the engine from
outside the vehicle. It may also start the vehicle's
heating or air conditioning systems. When you start
your vehicle using the remote start feature, the climate
control system will come on and adjust ...