A phenomenon that can occur when the front wheels of a vehicle lose traction and cannot steer effectively, resulting in a sluggish response to the steering wheel. For safety reasons, most cars are designed to understeer rather than oversteer under normal conditions, as the effect is easier to control, and can be reduced simply by reducing speed to allow the front wheels to regain traction. An understeering car is sometimes said to push, because it resists turning and tends to go straight.
See also Handling.