The lights installed on our dash are there to warn us and to advise us when something under the hood is awry. Their purpose is for alerting us before a minor problem becomes a major one. Some lights are cautionary to tell us to use caution and to handle the problem soon. These lights are yellow. Then there are the red lights. Red dash lights mean something needs immediate attention. There are many different lights and symbols on the dash, but below are the major ones and their meaning.
ABS light - The ABS (anti-lock brake system) light—The ABS system works by making sure the brake system doesn’t lock up when braking. When this light comes on it means there is something wrong with the ABS system. This light is a yellow warning light, meaning use caution and get it checked out soon.
Air Bag Light - The air bag light is generally a warning that the air bag needs to be serviced.
Battery Light - The battery light is a warning that the electrical system is not charging to the battery as it should. You should have this checked before your battery dies and will not start.
Brake Light - The brake light comes on when there is a problem with the brakes. Maybe something small like needing fluid, but maybe something big like pads. Get it checked out soon.
Service Engine Light On - The service engine light is a tricky one. It can come on for something as small as, your gas cap isn’t screwed on tight or something as major as a sensor light for emissions. You will need to get this checked out soon.
The main thing you want to pay attention to is the color of light. It really is that simple. Red means stop, yellow means caution, and green means go. Heed their warning and you will head off a problem before it becomes a major nuisance.