Check all of the bulbs and replace any which have either failed or blackened.
If this doesn't cure it then your flasher relay has failed and you'll need to replace it.
Normally it's such a cheap and quick fix that folks will attempt this repair in reverse order, but you can then find that you've replaced a perfectly good relay and wasted your money.
my gauge for my chevy cavalier came on when i was driving down the highway. i put two quarts of...
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my gauge for my chevy cavalier came on when i was driving down the highway. i put two quarts of fluid in my car, but the light did not go off what do you think the problem is? car didnt run hot or cut out so will that putting two bottles od tranny fluid help or do i have to add some more?