The maximum load for your vehicle is 850 lbs (385 kg). See the Tire and Loading Information label attached to the driver's doorjamb.

This figure includes the total weight of all occupants, cargo, and accessories, and the tongue load if you are towing a trailer.
Steps for Determining Correct Load Limit -
|
Maximum Load Limit
Gross Vehicle Weight Rating (GVWR): The maximum allowable weight of the vehicle, all occupants, all accessories and all cargo Gross Axle Weight Rating (GAWR): The maximum allowable weight of the vehicle axle. |
In addition, the total weight of the vehicle, all occupants, accessories, cargo, and trailer tongue load must not exceed the Gross Vehicle Weight Rating (GVWR) or the Gross Axle Weight Rating (GAWR). Both are on a label on the driver's doorjamb.

Interior Checks
Towing a TrailerHonda Civic Service Manual. Fuel Tank Undercover Removal and Installation
8131H7
1.
Vehicle Lift
1.
Raise the vehicle on a lift, and make sure it is securely supported.
2.
Fuel Tank Undercover
1.
...