Bynes, 27, avoids jail time for a 2012 collision with a patrol car in West Hollywood.
The incident was one in a series of incidents in 2012 for Bynes, including two separate hit-and-run collisions and a charge of driving on a suspended license.
In May, Bynes was arrested for reckless endangerment and marijuana possession after building officials called police to complain that the actress was smoking pot in the lobby of her Manhattan apartment.
Responding officers saw heavy smoke and a bong sitting on the kitchen counter of her 36th-floor apartment. They said the actress tossed the bong out the window in front of them.
She showed up to court in July wearing a long teal wig, black sweatpants and a tank top.
Later that month Bynes was detained by police after she allegedly started a fire in a residential driveway in Thousand Oaks.
In December, Bynes completed nearly six months of rehab after being hospitalized after setting the fire.
In December 2012, she resolved a misdemeanor hit-and-run case after entering into a settlement with other drivers. She was put on probation after driving on a suspended license, which had been temporarily been taken away following two hit-and-run cases. She was accused of leaving the scene without providing proper information.
Following her arrests, Bynes spent some time in the psychiatric wing of UCLA Medical Center. She was then moved to a rehab facility in Malibu in August.Her mother has been granted conservatorship.
Bynes rose to fame starring in Nickelodeon's "All That" and has also starred in several films, including 2010's "Easy A."