See also:

Precautions against vehicle modification
Always consult your SUBARU dealer if you want to install any accessory parts to your vehicle. CAUTION Do not perform any of the following modifications. Such modifications can interfere with pro ...

Effect vehicle modifications made for persons with disabilities may have on SUBARU advanced frontal airbag system operation (U.S. only)
Changing or moving any parts of the front seats, rear seat, seatbelts, front bumper, front side frame, radiator panel, instrument panel, combination meter, steering wheel, steering column, tire, suspe ...

Reclining the seatback
  WARNING To prevent the passenger from sliding under the seatbelt in the event of a collision, always put the seatback in the upright position while the vehicle is in motion. Also, do no ...