It's the cylindrical canister in front of the left front shock tower. See:
http://www.autozone.com/az/cds/en_us/0900823d/80/1f/44/ef/0900823d801f44ef/repairInfoPages.htm
In the power steering reservoir. Which is located on the passanger side next to the firewall right next to the hood hinge.
There is no external transmission reservoir. Transmission fluid is stored in the transmission. Fluid is added at the same point at which you check the fluid level.
You can add power steering fluid to your Nissan Pathfinder by adding it to the power steering reservoir. The power steering reservoir will be near the firewall in the engine compartment.
It has electronic power steering and, unlike hydraulic steering, does not use any power steering fluid to operate.
It is important to maintain the fluid in a car. The power steering fluid goes in the compartment under the car hood, labeled Power Steering.
Commonly you push and turn counterclockwise.
Its in a 3rd fuse box in the engine compartment next to the wiper fluid reservoir
Passenger side engine compartment greenish reservoir with "POWER STEERING FLUID" printed on the lid
Nissan Rogue 2008 does not use power steering fluid so you will not find a reservoir for that. Rogue's power steering is operated my electric motors.
where do you add clutch fluid to 1999 nissan maxima
Dextron II or Dextron III are the recommended power steering fluids for a 1997 Nissan Maxima. Using a different brand could affect the seals and the bearings on the car.
drivers side back of the engine compartment