WHILE BEING TOWED BY OUR RV ON A CITY STREET, A FIRE STARTED UNDER THE HOOD OF THE JEEP. THE TRANSFER CASE WAS IN NEUTRAL. THE MANUAL TRANSMISSION WAS IN NEUTRAL. THE IGNITION SWITCH WAS TURNED 1 NOTCH TO ACCESSORY TO UNLOCK THE STEERING. THE FIRE WAS EXTINGUISHED BY THE FIRE DEPARTMENT. NO POLICE REPORT WAS FILED BECAUSE THE FIRE WAS NOT CAUSED BY AN ACCIDENT. BECAUSE OF THE SEVERITY OF THE FIRE DAMAGE, NO CAUSE OF THE FIRE WAS DETERMINED.