Category:
        
        
            Iconic Off-Road Vehicle
        
     
    
        
            Segment:
        
        
            Compact/Mid-size SUV (off-road focused)
        
     
    
    
        
            Key Competitors:
        
        
            Toyota FJ Cruiser, Nissan Xterra, Land Rover Defender (historic)
        
     
    
    
        
            Defining Characteristics:
        
        
            Legendary off-road capability, solid axles (front and rear on most JK models), removable doors and roof, iconic styling
        
     
    
        
            Target Audience:
        
        
            Off-road enthusiasts, adventure seekers, Jeep loyalists
        
     
 
    
    
    
        
            Engine Mechanical:
        
        
            Complete overhaul, disassembly, assembly, diagnostics for all JK engines
        
     
    
        
            Engine Management:
        
        
            ECM, sensors, actuators, fuel injection, ignition system diagnostics and repair
        
     
    
        
            Transmission Manual:
        
        
            NV3550 (early JK), NSG370 (later JK) - Overhaul, clutch, diagnostics
        
     
    
        
            Transmission Automatic:
        
        
            42RLE (early JK), 62TE (later JK) - Overhaul, torque converter, diagnostics, fluid service
        
     
    
        
            Transfer Case:
        
        
            Command-Trac (NV241G), Rock-Trac (NV241OR) - Overhaul, operation, diagnostics, fluid service
        
     
    
        
            Drivetrain:
        
        
            Front and rear axles (Dana 30, Dana 44), differentials, driveshafts, U-joints, CV joints
        
     
    
        
            Suspension:
        
        
            Front and rear suspension components, coil springs, shocks, control arms, sway bars, bushings
        
     
    
        
            Steering:
        
        
            Power steering system, steering column, steering gear, tie rods, drag links
        
     
    
        
            Brakes:
        
        
            Hydraulic system, ABS, ESC, traction control, brake calipers, rotors, pads, parking brake
        
     
    
        
            Electrical System:
        
        
            Battery, charging system, starting system, lighting, fuses, relays, wiring diagrams
        
     
    
        
            Body And Frame:
        
        
            Frame inspection and repair, body panel replacement, doors, hood, tailgate, convertible top
        
     
    
        
            HVAC:
        
        
            Air conditioning, heating, ventilation, climate control system, refrigerant handling
        
     
    
        
            Interior:
        
        
            Seats, dashboard, trim panels, airbags, restraints
        
     
    
        
            Infotainment:
        
        
            Radio, navigation, Uconnect system, speaker diagnostics
        
     
    
    
        
            Maintenance:
        
        
            Oil changes, fluid checks and replacements, filter changes, tire rotation, brake pad replacement
        
     
    
        
            Troubleshooting:
        
        
            Diagnostic trouble codes (DTCs), symptom-based troubleshooting guides, component testing
        
     
    
        
            Repair:
        
        
            Step-by-step repair procedures for all major and minor components
        
     
    
        
            Rebuilding:
        
        
            Complete engine, transmission, and axle rebuilding procedures
        
     
    
        
            Diagnostics:
        
        
            In-depth diagnostic strategies for electrical and mechanical systems
        
     
    
    
        
            Depth:
        
        
            Comprehensive from basic DIY maintenance to advanced professional-level repairs and diagnostics
        
     
 
    
    
    
        
            NHTSA Rollover Rating:
        
        
            4/5 stars (Varies slightly by year and configuration)
        
     
    
        
            IIHS Crash Test Ratings:
        
        
            Generally good, with specific ratings varying by test and year.
        
     
    
    
        
            Electronic Stability Control Esc:
        
        
            Standard across all JK models
        
     
    
        
            Traction Control Tc:
        
        
            Standard across all JK models
        
     
    
        
            Anti Lock Braking System ABS:
        
        
            Standard across all JK models
        
     
    
    
        
            Airbags:
        
        
            Front occupant airbags, optional side curtain airbags (depending on year and trim)
        
     
    
        
            Seatbelts:
        
        
            3-point seat belts with pretensioners
        
     
 
    
    
    
        
            Infotainment System Options:
        
        
            Uconnect infotainment system with touchscreen displays, SiriusXM Satellite Radio, navigation options available on higher trims.
        
     
    
    
        
            Driver Assistance Features:
        
        
            Hill Start Assist, Hill Descent Control (standard on Rubicon, available on others). Limited availability of advanced driver-assistance systems (ADAS) compared to modern vehicles.
        
     
    
    
        
            Connectivity Features:
        
        
            Available Bluetooth connectivity, USB ports, optional Alpine premium audio system.
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Every 5,000-10,000 miles (8,000-16,000 km) or 6-12 months, depending on driving conditions and oil type (refer to manual for specifics).
        
     
    
        
            Tire Rotation Interval:
        
        
            Every 7,500 miles (12,000 km)
        
     
    
        
            Engine Air Filter Replacement:
        
        
            Every 15,000-30,000 miles (24,000-48,000 km) or as needed based on inspection.
        
     
    
    
        
            Engine Oil Pentastar:
        
        
            SAE 5W-30, API SN certified. (e.g., Mopar SAE 5W-30 Synthetic)
        
     
    
        
            Engine Oil Capacity Pentastar:
        
        
            6.0 quarts (5.7 liters) with filter change
        
     
    
        
            Transmission Fluid Automatic 42Rle:
        
        
            Mopar ATF+4 (MS-9602)
        
     
    
        
            Transmission Fluid Automatic 62Te:
        
        
            Mopar ATF+4 (MS-9602) or equivalent
        
     
    
        
            Transfer Case Fluid:
        
        
            Mopar NV241G/OR Transfer Case Lubricant (or equivalent)
        
     
    
        
            Differential Fluid Front Rear:
        
        
            SAE 75W-140 synthetic gear oil (API GL-5), with Mopar Friction Modifier Additive forTrac-Lok differentials if equipped.
        
     
    
    
        
            Common Issues Pentastar:
        
        
            Oil filter housing leaks, oil cooler line leaks, PCV valve issues, water pump leaks.
        
     
    
        
            Common Issues Early Egh:
        
        
            Valve cover gasket leaks, spark plug thread issues, EGR valve failures.
        
     
    
        
            Common Issues Transmission:
        
        
            Clutch wear (manual), potential internal failures (automatic, especially earlier 42RLE models under heavy use).
        
     
    
        
            Common Issues Suspension Steering:
        
        
            Ball joint wear, control arm bushings, steering stabilizer issues, Death Wobble (improperly addressed alignment or worn components).
        
     
 
    
    
    
        
            Brand Legacy:
        
        
            Jeep has a storied history dating back to World War II, with the Wrangler being the direct spiritual successor to the original Willys Jeep.
        
     
    
    
        
            Jk Generation Introduction:
        
        
            The JK generation replaced the TJ Wrangler and was introduced for the 2007 model year.
        
     
    
        
            Jk Generation Key Changes Vs Tj:
        
        
            First Wrangler to offer a 4-door model (Unlimited), redesigned interior, significantly improved on-road manners, updated powertrains (3.8L V6 and later 3.6L Pentastar V6).
        
     
    
        
            Jk Generation Facelift:
        
        
            Mid-cycle refresh for the 2011 model year introduced the 3.6L Pentastar engine and updated interior.
        
     
    
    
        
            Production Years:
        
        
            2007-2018
        
     
    
        
            Assembly Location:
        
        
            Toledo South Assembly Plant, Toledo, Ohio, USA