A park lock rod assembly for a park lock mechanism for actuating a pawl member into locking engagement with a park lock gear to releasably lock a vehicle transmission when parked, said park lock rod assembly comprising: a lock rod extending between axially opposite first and second rod ends; a coil spring seated around said lock rod between said first and second rod ends; a roller cage mechanism fixedly secured to said second rod end for engagement with said pawl member; a guide member slidably supporting said lock rod and said spring for actuation between unlocked and parked positions, said guide member including first and second mounting legs, which are axially spaced apart, and a neck portion, which extends axially from said first mounting leg, said guide member including a first open slot, the park lock rod assembly being characterized in that the first open slot extending in an L-shape defined by a first slot portion, which extends axially in said neck portion, and a second slot portion, which extends perpendicular to said neck portion in said first mounting leg, and further including a second open slot in said second mounting leg, which extends perpendicular to said neck portion and opens from a slot mouth to receive said lock rod and permit axial sliding of said lock rod through said second open slot, said lock rod adapted to be inserted into said first slot portion when oriented perpendicular to said guide member during assembly and pivoted along said first open slot to seat in said second slot portion and in said second open slot, wherein said lock rod is positioned axially relative to said guide member after assembly and is adapted to slide axially through said second open slot and said second slot potion of said first open slot. a lock rod extending between axially opposite first and second rod ends; a coil spring seated around said lock rod between said first and second rod ends; a roller cage mechanism fixedly secured to said second rod end for engagement with said pawl member; a guide member slidably supporting said lock rod and said spring for actuation between unlocked and parked positions, said guide member including first and second mounting legs, which are axially spaced apart, and a neck portion, which extends axially from said first mounting leg, said guide member including a first open slot, the park lock rod assembly being characterized in that the first open slot extending in an L-shape defined by a first slot portion, which extends axially in said neck portion, and a second slot portion, which extends perpendicular to said neck portion in said first mounting leg, and further including a second open slot in said second mounting leg, which extends perpendicular to said neck portion and opens from a slot mouth to receive said lock rod and permit axial sliding of said lock rod through said second open slot, said lock rod adapted to be inserted into said first slot portion when oriented perpendicular to said guide member during assembly and pivoted along said first open slot to seat in said second slot portion and in said second open slot, wherein said lock rod is positioned axially relative to said guide member after assembly and is adapted to slide axially through said second open slot and said second slot potion of said first open slot.