Have the Battery charged and tested to be sure its not over working the alternator.
could be the alternator is about to go out
alternator
your alternator is dead.
Defective alternator or broken alternator belt.
if the light get brighter when your driving then its your alternator so a new one will be needed
your alternator is going bad
Have alternator checked. There should also be other signs like lossing power to certain things or dim lights, if so...might be the alternator.
Have your alternator checked out.
sounds like an alternator problem
Possibly the alternator.
(no it uses the energy from the car battery not the energy made by the engine)Yes it does increase consumption because the battery has to be recharged by the power of the engine driving the alternator or the dynamo
Im assuming these turn of after startup. When the alternator isn't running, these lights automatically come on. Your alternator doesn't start running until your car is running, because it is run by a belt from your engine. So, if your lights stay on after startup, either you have a snapped alternator belt or your alternator is buggered. We had our alternator belt snap the other day while we were driving down a hill, it was quite a scary experience as we didn't know what was going on and in automatics the breaks barely work without the alternater running.