The low voltage light should come on if you have a bad alternator. Without a good alternator, the battery will die causing the low voltage.
I step on brakes, dashboard light comes on which says stop.
what does it mean when light comes on
There will be a light that comes on situated in the dashboard.
check your brakes
The brakes?
The brake warning light
If the abs light on a 4 wheel MX6 dashboard comes on, it is due to faulty abs sensor. It may also be due to a faulty rotor.
light as it originates from the sun or a bulb before it is broken into different frequencies
The dash light dimmer switch is turned off or broken.
Change your alternator
If it comes on it means the temperature of your engine is too hot. Your engine is overheating.
it indicates that it is time to change the pads for the disc brakes, the light comes on when the sensor is activated