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). ...

Example of the type of accident in which the SRS side airbag and SRS curtain airbag will most likely deploy.
A severe side impact near the front seat activates the SRS side airbag and SRS curtain airbag. ...

Engine overheating
Never attempt to remove the radiator cap until the engine has been shut off and has fully cooled down. When the engine is hot, the coolant is under pressure. Removing the cap while the en ...