See also:

Wear indicators
1) New tread 2) Worn tread 3) Tread wear indicator Each tire incorporates a tread wear indicator, which becomes visible when the depth of the tread grooves decreases to 0.063 in (1.6 mm). A tir ...

Conditions in which front passenger’s SRS frontal airbag is activated
The front passenger’s SRS frontal airbag will be activated for deployment upon impact when any of the following conditions are met regarding the front passenger’s seat. - When the seat is occ ...

The Inside
The interior is quiet enough at idle that one time I didn't even realize it was running. That's when I recognized Subaru finally seems to have licked this engine's chronic idle vibration. In this ...