Probably that the alternator is not functioning to charge the battery for you. Have the charging system checked out for you. Check to see if the battery terminals are clean. A simple eye inspection is not always enough. Batteries accumulate corrosive sulfate between the hold-down clamps and the battery terminals that you don't see, which can block the recharge energy from the alternator to reach the battery for recharge, thus, turning on the battery light. Unscrew the negative cable first and submerge in water mixed with bicarbonate and wash using a brush.
To reset the maintenance required warning light on a 1989 Dodge Dakota, unhook the battery connector cables for 10 minutes. Reconnect them and start the vehicle.
It is important to pay attention to the warning lights on the dashboard. The Battery warning light turns on when there the battery of a car is having a problem.
The red water warning symbol indicates the water is low or overheating. The red battery warning symbol indicates the charging system is malfunctioning.
The battery warning light illuminates when the battery isn't being charged , get it checked out to find the problem and then repair.
The light next to the battery warning light is the fuel injection system warning light. If it comes on and goes off after a short while it should be ok but if it stays on for longer than 5-10 minutes then get it checked out.
There are several warning light on the instrument panel. There is a high water temperature light. There is a low battery charge light. There is a low oil warning light.
The low air warning light is in indication the air compressor is not working or can't keep up with replenishing the air system. The red battery warning light is an indication the battery is not charging properly.
The yellow dashboard warning light you are seeing on your 2003 Dodge Neon is most likely the fuse warning light. You will most likely need to go to a mechanic to find out which fuse needs to be replaced.
Reset the battery
The Ford Freestar several warning lights. The red water warning light indicates the cooling system is overheating. The red battery warning light indicates the charging system is malfunctioning.
There are many types of warning lights on the Dodge Dakota. In order to know what a specific light means we need to know which light it is and what year the Dakota is. 2000
If your battery is not charging properly the charging system warning light ( located just to the right of the " F " on your fuel gauge ) will light up . It is the picture of a battery