If your Jetta seat doesn't recline, you may want to check the tracks and brackets that are located at the bottom of the seat. These structures need to be inspected to ensure they are in good working order; if they appear worn or damaged, it may be necessary to replace them in order for the seat to recline properly. In addition, you should ensure that the actuator and motorized components of the chair are functioning correctly; if they are not, these parts may require repair or replacement as well.