The fuse box is located in the driver's side of the vehicle, behind the center console. To access it, you need to remove the trim piece on the left side of the console using a pry tool.
Fuse Assignment
The fuse assignment for the 2010 Dodge Nitro is as follows:
Interior Fuse Box
Position 1: Radio
Position 2: Rear Defogger
Position 3: Power Distribution Center
Position 4: Interior Lights
Position 5: Glove Box Light
Position 6: Clock
Position 7: Power Outlet
Position 8: Instrument Panel
Position 9: Overhead Console
Position 10: Courtesy Lights
Position 11: Door Locks
Position 12: Remote Keyless Entry
Position 13: Courtesy Light Delay Relay
Position 14: Heated Mirrors
Position 15: Power Windows
Underhood Fuse Box
Position 1: Engine Control Module
Position 2: Transmission Control Module
Position 3: Power Steering Pump
Position 4: Engine Cooling Fan
Position 5: Fuel Pump Relay
Position 6: ABS Module
Position 7: Electric Fuel Pump
Position 8: Ignition Coil
Position 9: Starter Motor
Position 10: Alternator
Position 11: Headlights
Position 12: Tail Lights
Position 13: Brake Lights
Position 14: Turn Signals
Position 15: Fog Lights