Drain the engine coolant.
Remove the thermostat housing.
Remove the connecting pipe (A).

Install the connecting pipe with a new O-ring (B).
Install the thermostat housing.
Refill the radiator with engine coolant, and bleed the air from the cooling system.
Clean up any spilled engine coolant.
Start-up
The navigation system starts automatically when you turn the ignition to
ACCESSORY (I) or ON (II). At start-up, the following Confirmation screen is
displayed.
1. Select Change Language.
► ...
Navigation Commands
The system accepts these commands on a
map/guidance screen. ...
Controls Near the Steering Wheel
*1 : To use the horn, press the center pad of the steering wheel.
*2 : If equipped. ...