Question

many vehicles have indicator lights telling you when your ______. mileage is suffering tires are underinflated mirrors need cleaning music is too loud

Explanation:

Vehicle indicator lights are typically related to vehicle - related mechanical or safety - related issues. Underinflated tires can affect vehicle safety and performance, and many modern vehicles have tire - pressure monitoring systems that use indicator lights. Mileage suffering is usually not signaled by a single light, mirror cleaning is not an issue indicated by a light, and music volume is not related to vehicle indicator lights.

Answer:

tires are underinflated