See also:

What you should know about automotive fuels
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Guarding against exhaust fumes
WARNING: If you smell exhaust fumes inside your vehicle, have your dealer inspect your vehicle immediately. Do not drive if you smell exhaust fumes. Carbon monoxide is present in exhaust fumes. ...

How does the safety belt pretensioner and airbag supplementalrestraint system work?
The safety belt pretensioner and airbag SRS are designed to activate when the vehicle sustains longitudinal deceleration sufficient to cause the sensors to close an electrical circuit that i ...