Honda Civic Service Manual: Radiator

Thermostat Housing Removal and Installation (R18Z1)

1141B6 1. Radiator Cap 1. Wait until the engine is cool, then carefully remove the radiator cap. ...

Radiator Connecting Pipe Removal and Installation (K24Z7)

1141E7 1. Radiator Cap 1. Wait until the engine is cool, then carefully remove the radiator cap. ...

See also:

Honda Civic Owners Manual. Driver Information Interface Warning and Information Messages*
The following messages appear only on the driver information interface. Press the  (display/information) button to see the message again with the system message indicator on. Message Condition Explanation Appears if any door or the trunk is not completely clos ...