See also:

Rear differential oil temperature warning light (STI)
Reduce vehicle speed and park the vehicle in a safe place as soon as possible if the R.DIFF TEMP light illuminates. Continued driving with this light illuminated can damage the rear differential ...

Fuel
CAUTION Use of a fuel which is low in quality or use of an inappropriate fuel additive may cause engine damage. ...

Temporary spare tire
When a spare tire is mounted or a wheel rim is replaced without the original pressure sensor/transmitter being transferred, the low tire pressure warning light will illuminate steadily after blink ...