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said arm, formed by at least two arm sections (41, 42), being a telescoping arm with a length adjustable between a withdrawn position and a deployed position of the arm by means of an actuator driving relative movement of the arm sections called second actuator, - a bucket-holder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actuated by the driver of the vehicle, - a second member for controlling driving of the movement of the arm between a withdrawn position and a deployed position, able to be actuated by the driver of the vehicle, - a steering unit configured to control the first, second and third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 (9, 10), 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said arm, formed by at least two arm sections (41, 42), being a telescoping arm with a length adjustable between a withdrawn position and a deployed position of the arm by means of an actuator driving relative movement of the arm sections called second actuator, - a bucket-holder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 (9, 10),