A telehandler comprising: a chassis; an axle supporting the chassis; a pivotal connection between the axle and the chassis; and a chassis positioning system; wherein the pivotal connection is configured to enable rotation of the chassis relative to the axle for varying a chassis-axle tilt angle (α) defined between a longitudinal axis of the axle and the chassis; and wherein the chassis positioning system comprises: a chassis angle sensor configured to measure an angular position (θ) of the chassis relative to gravity; an actuator configured to rotate the chassis relative to the axle at the pivotal connection; and a control system configured, in a first mode, to control the actuator to thereby control the chassis-axle tilt angle (α) based on the measured angular position (θ) of the chassis: characterised in that: the chassis levelling system further comprises an axle position sensor; wherein the control system is configured to determine a current chassis-axle tilt angle (α) based on an output of the axle position sensor; and wherein in a second mode the control system is configured to control the actuator to thereby control the chassis-axle tilt angle (α) based on the determined current chassis-axle tilt angle (α); wherein the control system is configured to selectively operate in the first mode or the second mode. a chassis; an axle supporting the chassis; a pivotal connection between the axle and the chassis; and a chassis positioning system; wherein the pivotal connection is configured to enable rotation of the chassis relative to the axle for varying a chassis-axle tilt angle (α) defined between a longitudinal axis of the axle and the chassis; and wherein the chassis positioning system comprises: a chassis angle sensor configured to measure an angular position (θ) of the chassis relative to gravity; an actuator configured to rotate the chassis relative to the axle at the pivotal connection; and a control system configured, in a first mode, to control the actuator to thereby control the chassis-axle tilt angle (α) based on the measured angular position (θ) of the chassis: characterised in that: the chassis levelling system further comprises an axle position sensor; wherein the control system is configured to determine a current chassis-axle tilt angle (α) based on an output of the axle position sensor; and wherein in a second mode the control system is configured to control the actuator to thereby control the chassis-axle tilt angle (α) based on the determined current chassis-axle tilt angle (α); wherein the control system is configured to selectively operate in the first mode or the second mode. a chassis angle sensor configured to measure an angular position (θ) of the chassis relative to gravity; an actuator configured to rotate the chassis relative to the axle at the pivotal connection; and a control system configured, in a first mode, to control the actuator to thereby control the chassis-axle tilt angle (α) based on the measured angular position (θ) of the chassis: characterised in that: the chassis levelling system further comprises an axle position sensor; wherein the control system is configured to determine a current chassis-axle tilt angle (α) based on an output of the axle position sensor; and wherein in a second mode the control system is configured to control the actuator to thereby control the chassis-axle tilt angle (α) based on the determined current chassis-axle tilt angle (α); wherein the control system is configured to selectively operate in the first mode or the second mode. the chassis levelling system further comprises an axle position sensor; wherein the control system is configured to determine a current chassis-axle tilt angle (α) based on an output of the axle position sensor; and wherein in a second mode the control system is configured to control the actuator to thereby control the chassis-axle tilt angle (α) based on the determined current chassis-axle tilt angle (α); wherein the control system is configured to selectively operate in the first mode or the second mode.