See also:

Heated rear seats
Heat control for the outboard seating positions is done in the same way as for the front seats. ...

Use of Additives
With the exception of gas line antifreeze during winter months, do not add solvents, thickeners, or other store-bought additives to your vehicle's fuel, cooling, or lubricating systems. Overus ...

Towing a trailer
The maximum weights recommended by Volvo for trailers with brakes are shown in the table below. Recommended hitch tongue load: not more than 10% of the trailer's weight. The trailer load should ...