The power steering fluid reservoir is located in the engine compartment
There's a dipstick built into the lid. Wipe it clean, screw it back on and remove it again. Check the level on the dipstick Min-Max markers
Should the level require topping up, refer to the handbook for the correct fluid specification.
If topping up is required, be careful not to drip any fluids, have a paper towel handy.
When finished, replace cap securely