Answer: klaxons

AnswerCrossword Clue
KLAXONSSubmarine dive alarms
KLAXONSAuto horns.
KLAXONSLoud auto horns
KLAXONSElectric horns
KLAXONS"Ah-OO-gah!" horns
KLAXONSOld car horns
klaxonsloud electric horn, formerly used on automobiles, trucks, etc., and now often used as a warning signal