it is caused by low power or ampage output from the alternator.
Which lights?
Probably the dash fuse is blown, or the dimmer switch for the dash lights is bad!
It depends on what lights, did you turn on a switch, open a door, If they are dash warning lights, you have a malfunction.
my car is doing that because one of my abs ensors is broke
See your owner's manual. All dash warning lights are described there.
It was my alternator, needed rebuild.
There are several warning lights on the dash board of a 1993 Toyota Camry. There is a hot water warning, a low voltage warning, a low fuel warning, and several others.
See the link below for a definition of dash warning lights. - TechJK ------------------------------------------
Library
If all the dash warning lights are illuminated, you probably have more problems than not getting any heat. The only time all the warning lights come on at once is just before starting the engine, as a lamp check.
warning lights mean something is wrong and needs attention by a mechanic
what do all the dash board warning lights mean on a1989 mercedes benz