Segment:
Compact/Mid-size SUV (Off-Road Focused)
Usp:
Legendary off-road capability, open-air driving experience
Competitors:
Toyota 4Runner, Land Rover Defender (historic), Ford Bronco (historic/upcoming)
Design Philosophy:
Rugged, utilitarian, body-on-frame construction
Body Styles:
2-door Wrangler, 4-door Wrangler Unlimited
Powertrain Options:
Solid axle suspension, 4WD systems (Command-Trac, Rock-Trac)
Powertrain:
Engine, Transmission, Drivetrain (4WD Systems)
Chassis:
Suspension, Steering, Brakes, Wheels & Tires
Electrical:
Ignition System, Charging System, Starting System, Lighting, Instrumentation, Body Electronics, Powertrain Control Module (PCM)
Body:
Body Panels, Doors, Windows, Seats, Interior Trim, Convertible Top Systems
Heating Cooling:
HVAC System, Climate Control
Diagnostics:
Diagnostic Trouble Codes (DTCs), Wiring Diagrams, Component Testing
Maintenance:
Fluid Checks and Changes, Filter Replacements, Lubrication
Repair:
Engine Overhaul, Transmission Rebuilds, Suspension Component Replacement, Brake System Service, Electrical Component Repair
Troubleshooting:
Diagnostic procedures for common and uncommon issues
Specifications:
Torque Specifications, Tolerances, Clearance Measurements
Diagnostics:
Step-by-step diagnostic flowcharts and procedures
Engine Rebuild:
Complete engine overhaul procedures, including disassembly, inspection, machining, and reassembly
Brake Service:
Disc brake pad replacement, rotor resurfacing/replacement, caliper servicing, brake fluid flush
Electrical Diagnostics:
Detailed wiring diagrams, component location guides, troubleshooting flowcharts for electrical circuits
Level:
Comprehensive (from basic maintenance to full rebuilds)
Detail Level:
Detailed step-by-step instructions with diagrams and illustrations
Type:
6-Speed Manual Transmission (NSG 370)
Type:
5-Speed Automatic Transmission (W5A580 / NAG1)
Transfer Case:
Command-Trac NV241 GII (2WD/4WD Part-Time)
Transfer Case Optional:
Rock-Trac NV241 OHD (4WD Part-Time, 4:1 Low Range)
NHTSA Rollover Resistance:
4/5 Stars (likely for 4-door model)
Stability Control:
Electronic Stability Control (ESC) with Roll Mitigation
Traction Control:
Traction Control System (TCS)
Airbags:
Front Occupant Airbags, Side Curtain Airbags (optional/standard depending on trim)
Frame:
Body-on-frame construction with integrated roll cage
Head Unit Options:
Uconnect infotainment system (various screen sizes), AM/FM/CD/MP3 player, optional navigation
Connectivity:
USB port, Auxiliary input, Bluetooth connectivity (optional)
Parking Assistance:
Rear parking sensors (optional)
Visibility:
Halogen headlights, optional LED lighting upgrades
Oil Change Interval:
Every 10,000 miles or 12 months, whichever comes first (synthetic oil)
Tire Rotation Interval:
Every 6,000 - 8,000 miles
Engine Air Filter Replacement:
Inspect every 10,000 miles, replace as needed (typically 20,000-30,000 miles)
Engine Oil Type:
SAE 5W-30 Full Synthetic (API SN, Chrysler MS-6395)
Engine Oil Capacity:
5.5 US quarts (5.2 Liters) with filter
Coolant Type:
MOPAR OAT (Organic Additive Technology) Antifreeze/Coolant, HOAT formulation (typically pink)
Transmission Fluid Manual:
MOPAR Manual Transmission Lubricant (or equivalent meeting MS-9224)
Transmission Fluid Automatic:
MOPAR ATF+4 (MS-9602) or equivalent
Transfer Case Fluid:
MOPAR NV241 Transfer Case Lubricant (or equivalent meeting MS-946)
Differential Fluid Front Rear:
SAE 75W-140 Synthetic Gear Lubricant (API GL-5), with friction modifier if equipped with Trac-Lok differential.
Common Complaints:
Leaking windshield seal, premature wear of ball joints/tie rod ends, death wobble (severe steering shimmy), heater core leaks, potential PCM issues.
Jeep Legacy:
Roots in WWII Willys MB, continuous evolution of rugged utility vehicles
Wrangler Lineage:
Successor to Jeep CJ, direct lineage from the original Jeep concept
Jk Generation Introduction:
Introduced for the 2007 model year, significantly updated styling and mechanics
Manufacturing Plant:
Toledo Complex, Toledo, Ohio, USA
