Who is Liable if a Semi Truck Trailer Swings Out and Hits Your Car?
Navigating a 70-foot-long tractor-trailer through tight urban intersections requires precise geometric calculation. Because the rear wheels of a 53-foot trailer do not follow the same path as the front tractor wheels, the driver must swing the cab far to the left to execute a tight right-hand turn. This geometric reality creates a massive, temporary void on the right side of the truck, followed by a violent inward sweeping motion known as "off-tracking" or a "trailer swing."
If a passenger car is sitting in that void—either because they were already there, or because they tried to sneak past the turning truck—the rear wheels of the trailer will act like a giant sweeping arm, crushing the smaller car against the curb. When this happens, insurance adjusters immediately engage in a vicious blame game. Understanding exactly who is liable if a semi truck trailer swings out and hits your car depends entirely on who had the right of way and where the passenger car was positioned.
Trucking companies rely heavily on the "squeeze play" defense. They will argue that the truck driver legally took up two lanes to make a wide right turn with their blinker on, and the victim impatiently tried to sneak past them on the right shoulder, effectively driving into the trailer's blind spot and causing their own accident. If true, the passenger car driver may be held primarily liable.
Proving the Truck Driver's Negligence
Despite the "squeeze play" defense, the truck driver is still the professional on the road and holds the ultimate responsibility for safely executing a turn. A truck driver is almost always held liable for a trailer swing accident if the plaintiff's attorney can prove any of the following failures:
CDL training manuals mandate that drivers use the "buttonhook" method for right turns. The driver must keep the tractor close to the right curb, pull straight into the intersection, and then turn sharply. This blocks the right lane so no cars can sneak past. If the driver instead swung the tractor wide into the left lane before turning right (a "jug-handle" turn), they negligently opened the dangerous void themselves.
If you were stopped at a red light in the oncoming lane, and a truck turning left from the cross-street dragged its trailer across your lane and crushed your hood, the truck driver is 100% liable. You were completely stationary and occupying a legal space. The driver failed to calculate their turning radius and off-tracking path.
If the truck driver was occupying the left lane without a right turn signal activated, the passenger car driver has every legal right to pass them on the right. If the truck then suddenly turns right across the passenger car's path, dashcam video proving the lack of a turn signal will instantly assign full liability to the trucking company.
The Role of Accident Reconstruction
Because these accidents happen at low speeds in intersections, there are rarely skid marks to prove who moved first. Plaintiff attorneys rely heavily on surveillance video from nearby businesses and intersection cameras. If video proves the passenger car was already established in the lane before the truck began its sweeping turn, the "squeeze play" defense crumbles, and the motor carrier must pay for the resulting vehicle damage and injuries.