A construction vehicle , in particular for a construction site, comprising: - a chassis equipped with a power train, - an arm supported by said chassis and mounted by means of a first actuator pivotably movable between a high position and a low position, said arm , formed by at least two arm sections , being a telescoping arm with a length adjustable between a withdrawn position and a deployed position of the arm by means of an actuator driving relative movement of the arm sections called second actuator , - a bucket-holder arranged at the free end of the arm , this bucket-holder , able to be coupled to a bucket , being mounted, by means of an actuator called third actuator , pivotable around an axis orthogonal to the longitudinal axis of the arm between a tilt position and a discharge position, the discharge position corresponding to the extreme pivoting position toward the ground of the bucket-holder , - a first member , such as a joystick, for controlling driving of the movement of the arm and the bucket-holder , able to be actuated by the driver of the vehicle, - a second member for controlling driving of the movement of the arm between a withdrawn position and a deployed position, able to be actuated by the driver of the vehicle, - a steering unit configured to control the first , second and third actuators as a function of data provided by said control members , characterized in that the vehicle comprises at least a first and a second operating mode able to be activated selectively, in that the steering unit is configured in order, in the first operating mode, to control the third actuator as a function at least of the data provided by said first control member , and the second actuator as a function at least of the data provided by the second control member , and in that the steering unit is configured in order, in the second operating mode, to control the second and third actuators as a function at least of the data provided by said first control member . - a chassis equipped with a power train, - an arm supported by said chassis and mounted by means of a first actuator pivotably movable between a high position and a low position, said arm , formed by at least two arm sections , being a telescoping arm with a length adjustable between a withdrawn position and a deployed position of the arm by means of an actuator driving relative movement of the arm sections called second actuator , - a bucket-holder arranged at the free end of the arm , this bucket-holder , able to be coupled to a bucket , being mounted, by means of an actuator called third actuator , pivotable around an axis orthogonal to the longitudinal axis of the arm between a tilt position and a discharge position, the discharge position corresponding to the extreme pivoting position toward the ground of the bucket-holder , - a first member , such as a joystick, for controlling driving of the movement of the arm and the bucket-holder , able to be actuated by the driver of the vehicle, - a second member for controlling driving of the movement of the arm between a withdrawn position and a deployed position, able to be actuated by the driver of the vehicle, - a steering unit configured to control the first , second and third actuators as a function of data provided by said control members , <EOS>