You have probably turned off the overdrive function of the automatic transmission. Look for a small button on the gear selector reachable with your thumb.
what need to do when indicator light is on
If i am not mistaken, it is the shift indicator light on a manual transmission vehicle
We need to know which indicator light you speak of.
It means one or more of the cars tire's has lost grip with the road and traction control is kicking in.
The GED indicator light is an warning indicator. Essentially, it means that the alternator in the vehicle is not charging properly.
4x4 indicator light
It means that the car is turning whatever side the indicator light is on. This is the same with every car
On a Mazda tribute, the car with a key light indicator means that the engine is started.
It means that the light is about to go out. For example if you turn on your right blinker and it is blinking fast it means the light is about to go out and you should change it.
Airbag. Off light
A malfunction.
It is the powertrain/4x4/AWD malfunction indicator. It is the second indicator light covered in your owners manual if you have one.