A speech-impaired Long Island driver who faced losing his license after a traffic cop grilled him about his disability has won his fight to stay on the road.

Brian Siegel, 23, had been ordered to take a new road test after Suffolk County officer James Garside pulled him over last year and asked, “This is not an emergency, but if it were, would you know what to do?”

Siegel, whose speech and language disability leaves him slow to speak, didn’t immediately answer.

Garside didn’t issue him a ticket but later filed a complaint with the state Department of Motor Vehicles, which triggered a review of Siegel’s license.

The driver put the brakes on that fast.

“I went there and explained what happened,” said Siegel.

DMV officials decided on the spot that no additional testing was needed, he said.

“That felt pretty good. I was very happy about that,” said the recent college grad. “Now I can drive to my interviews and for jobs and things.”

His family accused Garside of targeting Siegel because of his disability, prompting an Internal Affairs complaint.

Suffolk police would not comment on the investigation.