The present approach relates to an unlocking device (105) for unlocking a park lock (110) of a vehicle (100). The unlocking device (105) comprises at least an eccentric apparatus (115), a slide unit (120) and an actuation apparatus (125). The eccentric apparatus (115) is designed to hold the slide unit (120) in a locking position in which the park lock (110) is locked or engaged in a first position in which the eccentric apparatus (115) is accommodated at least partly in the slide unit (120), and in a second position, to enable a transfer of the slide unit (120) into an unlocking position, in which the park lock (110) is unlocked or disengaged. The slide unit (120) is or can be coupled to the park lock (110) via a transmission element (155) and is designed, in the locking position, to position the transmission element (155) in a park locking position in order to lock the park lock (110) and in the unlocking position, to position the transmission element (155) in a park unlocking position in order to lock the park lock (110). The actuation apparatus (125) is designed to move the eccentric apparatus (115) from the first position to the second position in response to an actuation.