Warning tones headlamp on, key - in - ignition, driver and passenger buckle up reminder and turn signal on (markmitsubishiphoenix.com)
Some GM vehicles are now equipped with camera systems that detect nearby vehicles and lane markings, then alert drivers about possible collisions with warning tones and console lights if cars wander off their path. (macleans.ca)
With a long battery life you can listen to music day and night, with over 24 hours of listening time, and a Low battery warning tone, lets you know when it's time to charge. (thefashionablehousewife.com)