Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from Chevrolet for this TSB. Call your local Chevrolet dealer's service department & ask for a copy of TSB# PI1303.
THIS PRELIMINARY BULLETIN PROVIDES INFORMATION OF A POSSIBLE NORMAL CONDITION OF THE WEATHER ALERTS AND TRAFFIC ALERTS BEING DISPLAYED AFTER BEING SELECTED OFF AND HOW THEY WILL RETURN AFTER THE IGNITION HAS BEEN CYCLED.
THIS PRELIMINARY BULLETIN PROVIDES INFORMATION OF A POSSIBLE NORMAL CONDITION OF THE WEATHER ALERTS AND TRAFFIC ALERTS BEING DISPLAYED AFTER BEING SELECTED OFF AND HOW THEY WILL RETURN AFTER THE IGNITION HAS BEEN CYCLED.