See also:

Maintenance precautions
When performing any inspection or maintenance work on your vehicle, always take care to prevent serious accidental injury to yourself or damage to the vehicle. The following are general precautions ...

Spark plugs
Be sure the engine and ignition switch are off and that the parking brake is engaged securely. Be sure to use the correct socket to remove the spark plugs. An incorrect socket can damage the ...

Drinking alcohol/drugs and driving
WARNING Never drive under the influence of alcohol or drugs. Alcohol in the bloodstream reduces coordination, delays reaction time and impairs judgement. Driving after drinking alcohol increase ...