Using the Front Seat Armrest

The console lid can be used as an armrest.
To adjust: Slide the armrest to desired position.
Using the Rear Seat Armrest*

Pull down the armrest in the center backrest.
Rear SeatsHonda Civic Service Manual. Brake Booster Removal and Installation (Natural Gas models)
1.
Vehicle Lift
1.
Raise the vehicle on a lift, and make sure it is securely supported.
2.
Steering Joint Cover
1.
...