The AAA is suing the Port Authority of New York and New Jersey over recent toll hikes.
The motorists' group filed the lawsuit Tuesday in Manhattan federal court.
It's trying to stop the agency from collecting the higher tolls on its bridges and tunnels linking the two states.
The Port Authority declined comment.
The motorists group says it objects to using toll revenues for building the new World Trade Center.
Port Authority board members have said the fare increases will pay for construction that's fueling the region's economy.
Cash tolls rose to $12 on Sept. 18. Peak-hour tolls for E-ZPass users were hiked to $9.50.