WARNING:
Always allow the engine to cool before opening the cooling
system. Do not unscrew the coolant pressure relief cap when the engine
is operating or the cooling system is hot. The cooling system is under
pressure; steam and hot liquid can come out forcefully when the cap is
loosened slightly. Failure to follow these instructions may result in
serious personal injury.
Description and Operation - Diesel Fuel System Health and Safety Precautions
Description and Operation - Gasoline and Gasoline-Ethanol Fuel Systems Health and Safety Precautions
Switching the Ignition Off
When the ignition is on or in accessory mode, press the push button ignition switch once without your foot on the brake pedal.