🏷️ Basic Information

Make:

Infiniti

Model:

QX56

Year:

2004

Chassis Code:

JA60

Generation:

First Generation (2004-2010)

👋 Introduction

Market Position:

Premium Full-Size Luxury SUV

Competitive Analysis:

Competed directly with established luxury SUVs such as the Cadillac Escalade, Lincoln Navigator, and Lexus LX series. Positioned as a robust, powerful, and well-appointed alternative with a focus on performance and utility.

Key Features:

Powerful V8 engine, body-on-frame construction, spacious interior, advanced technology for its time, standard all-wheel drive (AWD) on many models.

📋 Manual Details

Coverage Areas:

Engine, Transmission, Drivetrain, Brakes, Suspension, Steering, HVAC, Electrical Systems, Bodywork, Interior, Diagnostics, Maintenance, Troubleshooting

Page Count:

Extensive (Digital Format, equivalent to thousands of printed pages of OE information)

Manual Type:

Official Service and Repair Manual Software (Factory-Derived)

Language:

English

Format:

Online Software (Web Browser Accessible)

📖 Manual Coverage

Systems Covered:

Engine Mechanical, Engine Control System (ECM), Fuel System, Ignition System, Emission Control, Cooling System, Lubrication System, Exhaust System, Automatic Transmission (RE5R05A), Transfer Case, Front Axle, Rear Axle, Drive Shafts, Brakes (ABS, EBD), Power Steering, Suspension (Front Independent, Rear Multi-link), Body Control Modules (BCM), Power Distribution, Lighting, Wiper/Washer, Audio System, Climate Control (HVAC), SRS Airbag System, Security System, Navigation System, Power Seats, Power Windows, Power Locks, Keyless Entry

Procedures Included:

Routine Maintenance, Scheduled Service, Component Removal and Installation, Major Repairs, Engine Overhaul, Transmission Rebuild, Brake System Service, Suspension Alignment, Steering System Repair, Electrical Troubleshooting, Diagnostic Trouble Code (DTC) interpretation and resolution, Wiring Diagrams, Component Testing, Fluid Level Checks and Changes, Filter Replacements, Belt Adjustments, Battery Service, AC System Service, Body Panel Repair, Interior Trim Removal/Installation

Technical Depth:

Comprehensive OE-level detail including diagnostic procedures, specifications, torque values, special tool requirements, and step-by-step repair instructions.

📊 Manual Specifications

File Format:

Proprietary Web Application (Access via internet)

Print Quality:

N/A (Digital, high-resolution graphics and text)

Binding Type:

N/A (Digital)

Paper Type:

N/A (Digital)

⚙️ Engine Specifications

Primary Engine:

VK56DE

Horsepower:

315 hp @ 4900 rpm

Torque:

390 lb-ft @ 3600 rpm

Fuel System:

Electronic Fuel Injection (EFI) with Sequential Multi-Port Fuel Injection

Displacement:

5.6 Liters (5552 cc)

Engine Layout:

DOHC 32-valve V8

Bore X Stroke:

98.0 mm x 92.0 mm

Compression Ratio:

9.7:1

Engine Management:

NATS (Nissan Anti-Theft System) integrated ECU

🔧 Transmission

Transmission Type:

5-Speed Automatic with Manual Shift Mode (RE5R05A)

Drivetrain:

RWD (Rear-Wheel Drive), AWD (All-Wheel Drive - available on most trims)

Transmission Fluid Type:

Nissan Matic J (or equivalent)

Transmission Fluid Capacity:

Approximately 10.8 US quarts (10.2 Liters) for total fill

📐 Dimensions

Length:

205.9 inches (5230 mm)

Width:

78.6 inches (1997 mm)

Height:

77.9 inches (1979 mm)

Wheelbase:

116.1 inches (2950 mm)

Ground Clearance:

8.7 inches (221 mm)

Curb Weight:

5,750 - 5,927 lbs (2608 - 2688 kg)

Gross Vehicle Weight Rating Gvwr:

7,500 lbs (3402 kg)

Cargo Volume Behind 3Rd Row:

16.9 cubic feet (479 Liters)

Cargo Volume Behind 2Nd Row:

50.5 cubic feet (1430 Liters)

Cargo Volume Behind 1St Row:

97.1 cubic feet (2749 Liters)

Towing Capacity:

9,000 lbs (4082 kg)

🛡️ Safety Features

NHTSA Rollover Rating:

4/5 Stars (with AWD)

Active Features:

ABS (Anti-lock Braking System), EBD (Electronic Brake-force Distribution), Brake Assist (BA), Vehicle Dynamic Control (VDC), Traction Control System (TCS), Tire Pressure Monitoring System (TPMS)

Passive Features:

Dual Front Airbags, Front Side Impact Airbags, Three-Row Side Curtain Airbags, Active Head Restraints (Front Seats), Pre-tensioning Seatbelts

💡 Technology Features

Infotainment System:

Available Bose premium audio system, optional navigation system with 7-inch display, rear-seat entertainment system.

Driver Assistance:

Vehicle Dynamic Control (VDC), Traction Control System (TCS), ABS, EBD, Brake Assist.

Connectivity:

Bluetooth hands-free phone system (optional on some trims), SiriusXM Satellite Radio (optional).

🔧 Maintenance

Oil Change Interval:

Every 5,000 - 7,500 miles (8,000 - 12,000 km) or 6 months, whichever comes first (refer to manual for specific conditions).

Engine Air Filter Replacement:

Every 30,000 miles (48,000 km) or as needed based on driving conditions.

Cabin Air Filter Replacement:

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

Spark Plug Replacement:

Every 105,000 miles (168,000 km) (Iridium-tipped plugs).

Transmission Fluid Service:

Every 30,000 - 60,000 miles (48,000 - 96,000 km) (refer to manual for detailed guidance, as some sources suggest flushing only if recommended by OE).

Engine Oil Type:

SAE 5W-30, API Certified (Refer to manual for specific viscosity index requirements based on temperature).

Engine Oil Capacity:

6.8 US quarts (6.4 Liters) with filter change

Coolant Type:

Nissan Genuine Super Long Life Coolant (Blue) or equivalent silicate-free, extended-life coolant.

Brake Fluid Type:

SAE J1703 or FMVSS 116 DOT 3

Known Issues:

Transmission valve body issues, potential for oil cooler line leaks, some reports of ignition coil failure, and occasional interior trim rattles. Catalytic converter issues can arise due to age and mileage.

📚 Vehicle History

Brand Heritage:

Infiniti, Nissan's luxury division, established in 1989, known for blending performance and luxury.

Model Evolution:

The 2004 QX56 marked the debut of Infiniti's full-size luxury SUV, sharing its platform with the Nissan Titan pickup and Armada SUV. This generation was built on a robust F-Alpha platform.

Production Location:

Canton, Mississippi, USA

Production Years:

2004-2010

🏆 Awards & Recognition

Recognitions:

While specific awards for the 2004 model year are not widely documented, the QX56's debut established Infiniti as a serious contender in the luxury SUV segment, praised for its powerful V8 and robust chassis.