🏷️ Basic Information

Make:

Jeep

Model:

Wrangler

Model Generation:

JK

Model Year:

2015

Engine Code Primary:

3.6L Pentastar V6 (ERB)

Engine Code Secondary:

2.8L CRD Diesel (Optional/International Market)

👋 Introduction

Vehicle Segment:

Compact SUV / Off-Road Vehicle

Jeep Brand Identity:

Iconic off-road capability, ruggedness, freedom, and adventure.

Key Competitors 2015:

Toyota FJ Cruiser, Nissan Xterra, Land Rover Defender (where applicable), Ford Bronco (historically relevant, though not direct competitor in 2015).

Off Road Capability:

Solid front and rear axles, available locking differentials, low-range gearing, high ground clearance, excellent approach/departure angles.

Convertibility:

Removable doors, removable roof (soft top or hardtop options).

Value Proposition:

Empowers owners to perform their own maintenance and repairs, saving significant costs compared to dealership services.

Usability:

Detailed, step-by-step instructions with clear diagrams and pictures facilitate easier understanding and execution of repair tasks.

📋 Manual Details

Manual Type:

Complete Workshop Service Repair Manual

Coverage Scope:

All Models, Engines, Trim Levels, and Transmission Types for 2015 Jeep Wrangler JK

Estimated Page Count:

Extensive (Likely 2000+ pages based on typical workshop manuals of this scope)

Language:

English

Format:

Digital Download (PDF)

Accessibility:

Viewable on PC, Mac, Tablets, Smartphones

Printability:

Printable (individual pages or full document)

📖 Manual Coverage

Powertrain:

Engine (3.6L Pentastar V6, 2.8L CRD Diesel), Fuel System, Exhaust System, Cooling System, Lubrication System

Transmission Drivetrain:

Manual Transmission (NSG370), Automatic Transmission (5-Speed W5A580/NAG1), Transfer Case (24J Command-Trac NV241G HD), Drive Axles (Dana 30 Front, Dana 44 Rear), Driveshafts, Axle Hubs

Suspension Steering:

Front Suspension (Solid Live Axle), Rear Suspension (Solid Live Axle), Shocks, Springs, Control Arms, Steering System (Power Steering Pump, Gearbox, Linkages), Wheel Alignment

Brakes:

Front Disc Brakes, Rear Disc Brakes, ABS System, Parking Brake, Brake Lines, Master Cylinder

Electrical:

Battery, Charging System (Alternator), Starting System (Starter Motor), Ignition System, Lighting System (Headlights, Taillights, Interior), Fuses, Relays, Wiring Diagrams, Body Control Module (BCM), Powertrain Control Module (PCM)

Body Chassis:

Frame, Body Panels, Doors, Hood, Tailgate, Bumpers, Interior Trim, Seating, Convertible Top/Hardtop Removal/Installation

HVAC:

Air Conditioning, Heating, Ventilation, Blower Motor, Evaporator, Condenser, Refrigerant System

Safety Features:

Airbags, Seatbelts, Anti-lock Braking System (ABS), Traction Control, Electronic Stability Control (ESC)

Maintenance:

Oil Changes, Filter Replacements (Oil, Air, Fuel, Cabin), Fluid Checks and Replacements (Coolant, Brake Fluid, Power Steering Fluid, Transmission Fluid, Differential Fluid), Spark Plug Replacement, Belt Inspection and Replacement

Diagnostics Troubleshooting:

Step-by-step diagnostic procedures for common and uncommon faults, DTC (Diagnostic Trouble Code) interpretation and resolution, electrical system troubleshooting using wiring diagrams

Repair Rebuild:

Engine overhaul, transmission rebuilds, clutch replacement, differential overhaul, brake caliper replacement, suspension component replacement, steering gearbox replacement, electrical component repair/replacement

Installation Replacement:

Component replacement (e.g., starter, alternator, water pump, fuel pump), accessory installation, body panel replacement, interior trim removal and installation

Depth Level:

Comprehensive (A-Z) - covering everything from routine maintenance to major component overhauls and diagnostics.

Diagnostic Tools:

References diagnostic procedures that may require specialized tools like OBD-II scanners, multimeters, pressure gauges, and specific Chrysler/Jeep diagnostic software.

📊 Manual Specifications

File Type:

PDF

Software Requirement:

Adobe Acrobat Reader (Free Download)

Image Resolution:

High-resolution images and diagrams

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Name Gas:

3.6L Pentastar V6

Displacement Gas:

3604 cc (220 cubic inches)

Configuration Gas:

V6

Valvetrain Gas:

DOHC (Dual Overhead Camshafts), 24 Valves (4 valves per cylinder)

Bore X Stroke Gas:

96.0 mm x 83.0 mm

Compression Ratio Gas:

10.5:1

Horsepower Gas Peak:

285 hp @ 6400 rpm

Torque Gas Peak:

260 lb-ft @ 4800 rpm

Fuel Delivery Gas:

Sequential Multi-Port Fuel Injection (MPI)

Fuel Type Gas:

Unleaded Gasoline

Fuel Delivery Diesel:

Common Rail Direct Injection (CRDI)

Fuel Type Diesel:

Diesel Fuel

Engine Name Diesel:

2.8L CRD (Common Rail Diesel) - VM Motori

Displacement Diesel:

2776 cc (169.4 cubic inches)

Configuration Diesel:

Inline 4-Cylinder (I4)

Valvetrain Diesel:

DOHC, 16 Valves

Horsepower Diesel Peak:

~177 hp @ 3800 rpm (variant dependent)

Torque Diesel Peak:

~339-347 lb-ft @ 1600-2400 rpm (variant dependent)

🔧 Transmission

Transmission Type Gas Manual:

6-Speed Manual (NSG370)

Transmission Type Gas Automatic:

5-Speed Automatic (W5A580 / NAG1)

Transmission Type Diesel Automatic:

5-Speed Automatic (W5A580 / NAG1) - typically paired with the 2.8L CRD

Transfer Case:

24J Command-Trac NV241G HD (Part-time, 2-speed with 4:1 low-range ratio)

Transfer Case Upgrade Option:

Optional Rock-Trac NV241OR (full-time, 4:1 low-range ratio)

Manual Transmission Fluid:

MS-9224 (e.g., Mopar Manual Transmission Lubricant)

Automatic Transmission Fluid:

NAG1 Fluid (e.g., Mopar ATF+4 or equivalent specification for W5A580)

Manual Transmission Capacity:

~2.0 Liters (Refer to manual for exact fill level)

Automatic Transmission Capacity:

~8.5 Liters (Refer to manual for exact fill level)

📐 Dimensions

Wheelbase 2 Door:

95.4 inches (2423 mm)

Wheelbase 4 Door Jku:

116.0 inches (2947 mm)

Length 2 Door:

160.0 inches (4064 mm)

Length 4 Door Jku:

179.4 inches (4557 mm)

Width Without Doors:

73.7 inches (1872 mm)

Height To Top Of Roof:

~72.4 inches (1839 mm)

Ground Clearance:

Approx. 9.7 inches (246 mm) with standard tires

Curb Weight 2 Door Gas:

Approx. 4,100 lbs (1860 kg)

Curb Weight 4 Door Gas Jku:

Approx. 4,500 lbs (2041 kg)

Towing Capacity:

Up to 2,000 lbs (907 kg) for 2-door, 3,500 lbs (1588 kg) for 4-door (JKU)

🛡️ Safety Features

NHTSA Overall Safety Rating 2015:

3 Stars (Overall)

IIHS Crash Test Performance:

Good (Moderate Overlap Front), Acceptable (Side), Marginal (Roof Strength), Acceptable (Head Restraints & Seats)

Traction Control:

Standard

Electronic Stability Control:

Standard (includes Roll Mitigation)

Anti Lock Braking System:

Standard

Airbags:

Front Airbags, Optional Side Curtain Airbags (depending on trim/configuration)

Seatbelts:

3-point seat belts with pretensioners

💡 Technology Features

Infotainment System Options:

Uconnect systems (e.g., 130 RES, 430 RHB CD/DVD/MP3, 730N NAV)

Connectivity Options:

Available Bluetooth, USB ports, SiriusXM Satellite Radio.

Driver Assistance Features:

Limited by modern standards; primarily ABS, ESC, Traction Control. Backup camera available on some trims.

🔧 Maintenance

Oil Change Interval Gas:

Every 10,000 miles (16,000 km) or 12 months, whichever comes first (synthetic oil recommended).

Engine Air Filter Replacement:

Every 30,000 miles (48,000 km) or as needed based on driving conditions (dusty environments may require more frequent replacement).

Cabin Air Filter Replacement:

Every 15,000-20,000 miles (24,000-32,000 km) or annually.

Spark Plug Replacement Gas:

Initially at 100,000 miles (160,000 km) for Pentastar V6 (use specific OE equivalent plugs).

Coolant Flush Replacement:

Every 5 years or 100,000 miles (160,000 km).

Automatic Transmission Fluid Change:

Typically around 60,000-100,000 miles (96,000-160,000 km), or sooner under severe driving conditions (towing, off-roading).

Engine Oil Specification Gas:

SAE 5W-30 Synthetic (MS-6395 compliant)

Engine Oil Capacity Gas:

6.0 quarts (5.7 liters) with filter change

Coolant Type:

Mopar OAT (Organic Additive Technology) Antifreeze/Coolant, Pink (MS-9769)

Coolant Capacity:

Approx. 10.0 - 11.0 quarts (9.5 - 10.4 liters) depending on configuration

Brake Fluid Type:

DOT 3

Power Steering Fluid Type:

MS-5901 (Mopar Power Steering Fluid or equivalent)

Differential Fluid Front Rear:

API GL-5, SAE 75W-90 Synthetic Gear Lubricant (consider friction modifier for LSDs if applicable)

Common Pentastar Issues:

Oil cooler leaks, intake manifold cracks (earlier models), spark plug ejection (rare but noted).

Common Jk Chassis Issues:

Death Wobble (related to steering/suspension components), brake pad/rotor wear, exhaust manifold cracks (sometimes on Pentastar), EVAP system issues.

Common Diesel Issues:

DPF (Diesel Particulate Filter) regeneration issues, EGR valve problems, glow plug issues (depending on specific VM Motori variant).

📚 Vehicle History

Jeep Origin:

Roots in WWII military vehicles (Willys MB), evolving into civilian off-road icons.

Jk Generation Launch:

Introduced for the 2007 model year, replacing the TJ generation.

Jk Generation Distinction:

First Wrangler generation with a unibody construction (though still body-on-frame principles applied) and coil spring suspension all around, wider track, and the availability of a four-door (JKU) model.

2011 Update:

Significant interior redesign, improved refinement, and introduction of the Pentastar 3.6L V6 engine (standard from 2012 onwards).

Manufacturing Plant:

Toledo South Assembly Plant, Toledo, Ohio, USA

Production Period:

2007-2018 (JK Generation)

🏆 Awards & Recognition

Off Road Magazine Awards:

Consistently recognized by off-road publications for its capability and iconic status.

Vehicle Awards:

Appeared on lists such as Kelley Blue Book's 'Best Resale Value' and 'Most Trail Rated' vehicles.