Honda Civic Service Manual: Thermostat

Water Passage Removal and Installation (K24Z7)

1211F4 1. Radiator Cap 1. Wait until the engine is cool, then carefully remove the radiator cap. ...

Thermostat Housing Removal and Installation (R18A9)

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

See also:

Honda Civic Owners Manual. Precautions for Opening/Closing the Trunk
Opening the trunk Open the trunk all the way. If it is not fully opened, the trunk lid may begin to close under its own weight. Closing the trunk Keep the trunk lid closed while driving to: Avoid possible damage. Prevent exhaust gas from leaking into the vehicle. Exhaust Gas Haz ...