Law enforcement sources tell TMZ ... Bynes was pulled over in her black BMW around 9:00 AM in Burbank, CA. We're told when cops ran her license they discovered it was suspended.
According to our sources, cops impounded the vehicle and issued her a misdemeanor ticket for driving on a suspended license.
As TMZ first reported, Bynes was pulled over on September 9 -- but despite having the suspended license, she was given only a verbal warning and let go.
She was not as lucky this time.