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 stability on snow-covered, muddy or other slippery roads or when high speed driving.

• Never start the engine while a tire on one side is jacked up, as the vehicle may move.
• If one tire is spinning in mud, avoid continued spinning at high speed as this could adversely affect the LSD.
• If you use a temporary spare tire to replace a flat tire, be sure to use the original temporary spare tire stored in the vehicle. Using other sizes will adversely affect the LSD.
See also:
Electronic Brake Force Distribution (EBD) system
The EBD system maximizes the effectiveness of the brakes by allowing the rear brakes to supply a greater proportion of the braking force. It functions by adjusting the distribution of braking force to ...
Changing a flat tire
WARNING
● Do not jack up the vehicle on an incline or a loose road surface. The jack
can come out of the jacking point or sink into the ground and this can result in
a serious accident.
...
SRS side airbag and SRS curtain airbag
The SRS side airbag is stored in the door side of each front seat seatback, which bears an “SRS AIRBAG” label.
In a moderate to severe side impact collision, the SRS side airbag on the impacted side ...
