A control system (300) for controlling an active suspension system (104) of a vehicle (100), the vehicle having one or more leading wheels (FL, FR) and one or more trailing wheels (RL, RR), the control system comprising one or more controller (301), wherein the control system is configured to: determine (708) that vehicle movement is impeded at a leading wheel (FR) of the vehicle; and in dependence on the determination, transmit (712) a transient force request to the active suspension system to transiently unload the leading wheel.