THESE VEHICLES MAY BE SUBJECT TO A LOSS OF ELECTRICAL POWER THROUGH THE IGNITION SWITCH AS A RESULT OF EXCESSIVE CURRENT AND OTHER FACTORS. THIS CONDITION COULD CAUSE THE ENGINE TO FAIL TO START, OPERATE ERRATICALLY OR LOSE POWER.CORRECTION: IGNITION SWITCHES WILL BE REPLACED ON ALL AFFECTED VEHICLES IN SERVICE. ALL NEW UNITS WILL HAVE A RELAY ADDED.