The (dis)engagement of 4WD transmission mode and the switch from one gearing range to another is performed by a dedicated transfer case mechanical unit, which is separate from the regular gear box unit. All four Jimny generations have a transfer case with an attached selection lever protruding in the cabin between the main gear box lever and the hand brake lever. The lever allows the user to select 2WD-H, 4WD-H or 4WD-L transmission modes at will. The only exception are later production years of 3rd generation Jimnys (more info in a dedicated chapter), which do not have a selection lever, but instead have servo-actuated mechanism which performs the same actions when invoked by the push of certain buttons in the cabin.