Market Position:
The 2006 WK Grand Cherokee positioned Jeep as a strong contender in the mid-size luxury SUV segment, offering a blend of off-road capability and on-road comfort, competing with models like the Ford Explorer, Toyota 4Runner, and Chevrolet TrailBlazer.
Competitive Analysis:
The WK platform represented a significant evolution for the Grand Cherokee, moving to a unibody construction which improved ride quality and handling compared to its WK predecessor. This manual is essential for maintaining this sophisticated vehicle.
Key Features:
This manual provides factory-level detail on the sophisticated systems introduced in the WK Grand Cherokee, including available Hemi engines, advanced 4x4 systems (Quadra-Trac II, Quadra-Drive II), and premium interior features. It's an indispensable resource for any owner or technician.
Systems Covered:
Lubrication & Maintenance, Suspension, Differential & Driveline, Brakes, Cooling, Audio/Video, Chime/Buzzer, Electronic Control Modules, Engine Systems, Heated Systems, Horn, Ignition Control, Instrument Cluster, Lamps, Message Systems, Power Systems, Restraints, Speed Control, Vehicle Theft Security, Wipers/Washers, Navigation/Telecommunication, Wiring, Engine, Exhaust System, Frame & Bumpers, Fuel System, Steering, Transmission and Transfer Case, Tires/Wheels, Body, Heating & Air Conditioning, Emissions Control
Estimated Page Count:
Estimated 2500+ pages (typical for a comprehensive factory service manual)
Manual Type:
Factory Service Repair Manual
Digital Format:
Winrar/PDF (Downloadable)
Powertrain:
Engine (all variants), Transmission (automatic), Transfer Case (4WD systems)
Chassis:
Suspension (front and rear), Steering system, Brakes (ABS, hydraulic, parking), Wheels and Tires, Differential and Driveline components (axles, driveshafts)
Electrical & Electronics:
Instrument Cluster, Lighting (headlamps, taillamps, interior), Audio/Video systems, Navigation/Telecommunication, Power Systems (battery, alternator, starter), Electronic Control Modules (ECM, TCM, BCM, etc.), Vehicle Theft Security, Speed Control, Restraints (airbags, seatbelts), Chime/Buzzer systems, Heated Systems (seats, mirrors, windshield)
Body & HVAC:
Body panels, Frame, Bumpers, Doors, Windows, Wipers/Washers, Heating & Air Conditioning (HVAC), Emissions Control systems
Maintenance:
Scheduled maintenance, fluid changes (oil, coolant, transmission, differential), filter replacements, lubrication points
Diagnostics:
Troubleshooting guides for various systems, diagnostic trouble codes (DTCs) interpretation, electrical circuit diagnosis
Repair & Overhaul:
Component removal, installation, disassembly, assembly, and adjustment for all covered systems
Wiring Diagrams:
Detailed electrical schematics for all vehicle circuits
Depth:
Comprehensive from basic fluid checks and tire rotations to complete engine, transmission, and suspension overhauls. Includes detailed diagnostic procedures and specifications.
Engine Options:
3.7L PowerTech V6 (215 hp @ 5200 rpm, 236 lb-ft @ 4000 rpm), 4.7L Magnum V8 (235 hp @ 5000 rpm, 300 lb-ft @ 3250 rpm), 5.7L HEMI V8 (330 hp @ 5000 rpm, 370 lb-ft @ 4000 rpm)
Compression Ratio:
3.7L: 9.6:1, 4.7L: 9.3:1, 5.7L: 9.6:1
Fuel System:
Sequential Multi-Port Fuel Injection (MPI)
Engine Management:
Utilizes sophisticated Electronic Control Modules (ECMs) with OBD-II diagnostics.
Transmission Type:
5-speed automatic (W5A580 for 4.7L and 5.7L, 5-45RFE for 3.7L)
Optional Transmission Type:
N/A (all models equipped with automatic)
Transmission Features:
Includes Electronic Range Select (ERS) for manual gear selection, Tow/Haul mode for enhanced towing performance.
Transfer Case Options:
Selec-Trac II (full-time 2-speed transfer case with neutral), Quadra-Trac II (part-time 2-speed transfer case with neutral), Quadra-Drive II (full-time 4x4 with electronic limited-slip differentials)
NHTSA Front Impact Rating:
5-Star (Driver and Passenger)
NHTSA Side Impact Rating:
5-Star (Front and Rear Passengers)
Active Safety Features:
Anti-lock Braking System (ABS), Electronic Stability Control (ESC), Traction Control System (TCS), Brake Assist, Electronic Roll Mitigation (ERM), All-Speed Traction Control.
Passive Safety Features:
Advanced multi-stage front airbags, front and rear side-curtain airbags, front seat-mounted side airbags, active head restraints, energy-absorbing steering column.
Infotainment System:
Optional SiriusXM Satellite Radio, Boston Acoustics premium sound system, in-dash CD/MP3 player. Higher trims may offer DVD-based navigation systems.
Driver Assistance Features:
ParkView Rear Back-Up Camera (optional), ParkSense Front and Rear Park Assist (optional).
Connectivity Features:
Uconnect Hands-Free Communication (optional, depending on trim and infotainment package), auxiliary audio input jacks.
Oil Change Interval:
Every 3,000-5,000 miles (depending on driving conditions and oil type used, consult manual for specific recommendations).
Transmission Fluid Change:
Refer to manual for specific intervals, typically around 60,000-100,000 miles. Crucial for longevity.
Engine Oil Specification:
SAE 5W-20 (3.7L, 4.7L, 5.7L) meeting Chrysler Material Standard MS-6395. Consult manual for specific viscosity based on temperature.
Coolant Specification:
Chrysler HOAT (Hybrid Organic Acid Technology) Antifreeze/Engine Coolant, typically Mopar Part No. 05103530AA (or equivalent meeting MS-9769 spec).
Transmission Fluid Specification:
ATF+4 (Automatic Transmission Fluid +4) for 5-45RFE and W5A580 transmissions. Mopar Part No. 05013457AA (or equivalent).
Brake Fluid Specification:
DOT 3 or DOT 4 brake fluid.
Known Issues Common:
Common issues can include HVAC blower motor failures, water pump leaks, electronic throttle body issues, and sometimes premature wear on suspension components due to vehicle weight and use. The HEMI engines can be susceptible to valve spring issues or MDS (Multi-Displacement System) lifter problems if not maintained.
Oil Filter Part Number:
Example: Mopar MO-090 or equivalent aftermarket brands like Wix 57712 or Fram PH10575.
Brand Heritage:
Jeep, a brand with a rich history rooted in military vehicles, has consistently offered SUVs with legendary off-road capability. The Grand Cherokee, introduced in 1993, was designed to offer a more luxurious and refined experience than its Wrangler sibling, bridging the gap between utility and premium features.
Model Evolution Wk:
The WK generation (2005-2010) marked a significant departure from the WJ, moving to a unibody construction for improved on-road dynamics. It introduced more powerful engine options, including the HEMI, and advanced technology features.
Production Location:
Jefferson North Assembly Plant in Detroit, Michigan, USA.
