Market Position:
The Jeep Wrangler is an iconic off-road focused SUV, known for its ruggedness, capability, and open-air driving experience. The 2011 model represents a significant point in its evolution, bridging the gap between traditional Jeep heritage and modern refinement.
Competitive Analysis:
Competes with other compact and mid-size SUVs but stands apart due to its dedicated off-road prowess. Key competitors often include models like the Toyota FJ Cruiser (discontinued by 2011 but relevant to the era), Nissan Xterra, and to some extent, body-on-frame SUVs with off-road trims from other manufacturers.
Key Features:
Removable doors, removable roof panels (soft-top or hard-top options), solid front and rear axles (standard on most trims), Command-Trac NV241 GII transfer case, optional Trac-Lok limited-slip differential, robust body-on-frame construction.
Coverage Areas:
Full Service, Repair, Workshop, Diagnostics, Maintenance, Electrical Schematics, Bodywork, Chassis
Page Count:
Estimated 2000+ pages (typical for a comprehensive factory service manual)
Manual Type:
Factory Service and Repair Workshop Manual
Systems Covered:
Engine (3.8L V6, 3.6L Pentastar V6), Transmission (NSG370 Manual, W5A580 Automatic), Transfer Case (NV241OR), Axles (Dana 30, Dana 44), Brakes (ABS, RWD, 4WD), Suspension (Front Solid Axle, Rear Solid Axle), Steering, Fuel System, Exhaust System, Cooling System, HVAC System, Electrical System (Wiring Diagrams, Component Location), Body and Frame, Interior Trim, Restraint Systems (Airbags), Powertrain Control Module (PCM), Body Control Module (BCM), Diagnostic Trouble Codes (DTCs)
Procedures Included:
Routine Maintenance, Scheduled Maintenance, Engine Overhaul, Transmission Repair, Differential Service, Brake System Overhaul, Suspension Component Replacement, Steering System Repair, HVAC System Diagnosis and Repair, Electrical Component Testing and Replacement, Body Panel Repair, Frame Alignment, Diagnostic Procedures, Troubleshooting Guides, Torque Specifications, Special Tool Recommendations, Wiring Harness Repair, Software Updates
Technical Depth:
Comprehensive Factory-Level Detail, Suitable for Professional Technicians and Advanced DIY Enthusiasts. Covers diagnostics, repair procedures, component specifications, and schematics with a high level of detail.
Primary Engine:
3.8L (3778cc) V6 OHV (Engine Code: EGH)
Horsepower 3.8L:
202 hp @ 5200 rpm
Torque 3.8L:
237 lb-ft @ 4000 rpm
Horsepower 3.6L:
285 hp @ 6400 rpm
Torque 3.6L:
260 lb-ft @ 4800 rpm
Fuel System Type:
Electronic Multi-Point Fuel Injection (MPI)
Fuel Type:
Unleaded Regular (87 Octane recommended)
Engine Variant Pentastar:
3.6L (3604cc) Pentastar V6 VVT DOHC (Engine Code: ERB) - Introduced mid-year for some 2011 models
Transmission Standard:
NSG370 6-speed Manual Transmission
Transmission Optional:
W5A580 5-speed Automatic Transmission
Transfer Case:
NV241 GII Command-Trac NV241OR (Part-Time, 2-Speed, Manual Shift)
Manual Transmission Fluid Spec:
Mopar Manual Transmission Lubricant (MS-9224) or equivalent API GL-3/GL-4, SAE 75W-90
Automatic Transmission Fluid Spec:
Mopar ATF+4 (MS-9602) or equivalent
Length 2Door:
164.4 inches (4176 mm)
Wheelbase 2Door:
95.4 inches (2423 mm)
Length 4Door:
173.4 inches (4404 mm)
Wheelbase 4Door:
116.0 inches (2946 mm)
Curb Weight Est 2Door:
4,000 - 4,200 lbs (1814 - 1905 kg)
Curb Weight Est 4Door:
4,200 - 4,500 lbs (1905 - 2041 kg)
Cargo Volume 2Door Behind Rear Seat:
9.6 cubic feet (272 liters)
Cargo Volume 2Door Max:
56.5 cubic feet (1600 liters)
Cargo Volume 4Door Behind Rear Seat:
31.5 cubic feet (892 liters)
Cargo Volume 4Door Max:
83.3 cubic feet (2359 liters)
NHTSA Rollover Resistance Rating 2Door:
4/5 stars
NHTSA Rollover Resistance Rating 4Door:
5/5 stars
Active Safety Features:
Electronic Stability Control (ESC), Traction Control System (TCS), Anti-lock Braking System (ABS), Electronic Roll Mitigation (ERM), Hill Start Assist (HSA)
Passive Safety Features:
Front Supplemental Side Curtain Airbags (Optional on 2-door, Standard on 4-door), Front Seat-Mounted Side Airbags (Optional), Advanced front airbags, Three-point seat belts with pretensioners, Tire Pressure Monitoring System (TPMS)
Infotainment System Options:
Uconnect infotainment system with AM/FM stereo, CD/MP3 player, auxiliary input jack, SiriusXM Satellite Radio. Higher trims offered navigation and larger display screens.
Driver Assistance Features:
Limited by 2011 standards. Primarily focused on ABS, ESC, and TCS. Backup camera optional on higher trims.
Connectivity Options:
Auxiliary audio input jack, optional USB port, Bluetooth hands-free calling (with Uconnect).
Oil Change Interval Severe Service:
Every 3,000-5,000 miles or 3-6 months
Oil Change Interval Normal Service:
Every 6,000-7,500 miles or 6-12 months (using synthetic oil)
Engine Air Filter Replacement:
Every 15,000 - 30,000 miles, or as needed based on driving conditions
Cabin Air Filter Replacement:
Every 10,000 - 15,000 miles or 12 months
Spark Plug Replacement 3.8L:
Approx. 100,000 miles (Long-life Platinum/Iridium)
Spark Plug Replacement 3.6L:
Approx. 100,000 miles (Long-life Platinum/Iridium)
Engine Oil Capacity 3.8L:
5.6 US quarts (5.3 liters) with filter, SAE 5W-20 synthetic blend or full synthetic
Engine Oil Capacity 3.6L:
6.0 US quarts (5.7 liters) with filter, SAE 0W-20 full synthetic
Coolant Type:
Mopar OAT (Orange) Antifreeze/Coolant (MS-9769) or equivalent HOAT
Coolant Capacity:
Approx. 10.5 US quarts (9.9 liters)
Known Issues:
Potential for death wobble (typically related to steering/suspension wear), interior water leaks (especially with soft tops or removable panels), exhaust manifold cracks (3.8L V6), starter motor issues, clutch wear (manual transmission), HVAC blower motor failures, death wobble, oil filter housing leaks (3.6L Pentastar).
Brand Heritage:
Jeep has a rich heritage dating back to World War II, with the Willys MB. The Wrangler lineage directly descends from the CJ (Civilian Jeep) series, preserving its core identity as an off-road vehicle.
Model Evolution:
The JK generation, introduced for the 2007 model year, marked a significant departure from previous Wranglers. It offered a longer wheelbase (especially the 4-door 'Unlimited' model), improved on-road manners, and more modern amenities while retaining its legendary off-road capability. The 2011 model year saw the introduction of the more powerful 3.6L Pentastar V6 engine, a major upgrade for the platform.
Production Years Jk Generation:
2007-2018
Manufacturing Location:
Toledo, Ohio, USA
