TECHNICAL SERVICE BULLETIN: LOW PITCH & HIGH PITCH HORN REPLACEMENT - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information to replace both the low and high pitch horns on some 2022-2023MY Carnival (KA4) vehicles produced from January 4, 2021 through May 2, 2022, which may exhibit an inoperative low or high pitch horn.
