Honda Civic Service Manual: Engine Cooling

Engine

...

Coolant Replacement (R18A9)

1. Radiator Cap 1. Wait until the engine is cool, then carefully remove the radiator cap. ...

See also:

Honda Civic Owners Manual. How to Set Up the Jack
Place the jack under the jacking point closest to the tire to be changed. Turn the end bracket clockwise as shown in the image until the top of the jack contacts the jacking point. ► Make sure that the jacking point tab is resting in the jack notch. Raise t ...