See also:

Checking air conditioning system before summer season
Check the air conditioner unit for refrigerant leaks, hose conditions, and proper operation each spring. Have the air conditioning system checked by your SUBARU dealer. ...

SRS airbag (Supplemental Restraint System airbag)
SRS: This stands for supplemental restraint system. This name is used because the airbag system supplements the vehicle’s seatbelts. Your vehicle is equipped with a crash sensing and diagnostic modul ...

Limited slip differential (LSD) (STI)
The LSD provides optimum distribution of power according to the difference in revolutions between the right and left wheels that may be caused by certain driving conditions, thereby improving driving ...