Positioning:
High-end, heavy-duty full-size SUV targeting families and commercial users requiring significant towing and hauling capabilities.
Competitors:
Ford Expedition EL, Chevrolet Suburban, Toyota Sequoia.
Features:
Extended wheelbase for maximum passenger and cargo capacity, robust V8 engine options, heavy-duty chassis and suspension, significant towing capacity.
Primary Coverage:
Comprehensive Service and Repair Information
Secondary Coverage:
Maintenance, Diagnostics, Troubleshooting, Repair Procedures
Estimated Page Count:
Extensive (Specific page count not provided, but factory-derived manuals are typically thousands of pages)
Type:
Digital Service & Repair Manual Software
Format:
Online Access Software
Powertrain:
Engine Mechanical, Engine Control Systems, Fuel System, Exhaust System, Transmission (Automatic), Drivetrain (2WD/4WD, Transfer Case, Axles)
Chassis:
Suspension (Front & Rear), Steering System, Brake System (Front & Rear, ABS, Traction Control)
Electrical:
Body Electrical Systems, Lighting, Instrumentation, Power Accessories, HVAC Electrical, Powertrain Control Module (PCM) Wiring, Chassis Control Module (CCM) Wiring
Body And Interior:
Body Panels, Doors, Windows, Seats, Trim, HVAC System (Mechanical)
Maintenance:
Oil Change, Filter Replacements, Fluid Checks & Top-offs, Tire Rotation, Spark Plug Replacement, Belt Inspection & Replacement
Repair And Diagnostics:
Component Removal & Installation, System Troubleshooting, Diagnostic Trouble Code (DTC) Interpretation, Wiring Diagrams, Component Testing
Depth:
Factory-level detail, covering all aspects from routine maintenance to complex diagnostics and component overhauls.
Transmission Type:
4-Speed Automatic Heavy-Duty (4L70-E)
Drivetrain Configuration:
Rear-Wheel Drive (RWD) or Four-Wheel Drive (4WD)
Transfer Case:
2-Speed Autotrac Active Transfer Case (for 4WD models)
Transmission Features:
Tow/Haul mode, electronic range selection.
Wheelbase:
130.0 inches (3302 mm)
Overall Length:
222.4 inches (5649 mm)
Overall Width:
79.1 inches (2009 mm)
Overall Height:
76.5 inches (1943 mm)
Curb Weight Approx:
5,800 - 6,200 lbs (2630 - 2812 kg)
Gross Vehicle Weight Rating Gvw:
8,500 lbs (3856 kg) or 8,600 lbs (3901 kg) depending on configuration
Max Towing Capacity:
Up to 9,700 lbs (4400 kg) with proper trailering package
NHTSA Rollover Rating:
5-Star (for 2009 model year, specific ratings may vary)
Active Safety:
StabiliTrak Stability Control, Traction Control, Anti-lock Braking System (ABS), Available Trailer Sway Control
Passive Safety:
Frontal Airbags, Side-Impact Airbags, Curtain Airbags (front and third-row), LATCH Child Seat Anchorage System.
Infotainment System:
Available touchscreen navigation system, Bose premium audio system, rear-seat entertainment system.
Driver Assistance Features:
Rear parking assist, rearview camera (available on some trims).
Connectivity Options:
Bluetooth connectivity for hands-free calling (RPO code UE1 OnStar required for some features).
Oil Change Interval:
Every 7,500 miles or 6 months (conventional oil) or 10,000 miles or 12 months (synthetic oil), under normal driving conditions. Refer to manual for severe conditions.
Air Filter Replacement:
Every 45,000 miles or as needed based on inspection.
Spark Plug Replacement:
Approximately 100,000 miles (for iridium-tipped plugs).
Engine Oil:
SAE 5W-30 Synthetic (GM dexos1 Gen 2 or equivalent recommended for optimal performance and protection).
Transmission Fluid:
Dexron VI Automatic Transmission Fluid (ATF).
Coolant:
GM P/N 12346290 (Orange Long-Life Coolant) or equivalent meeting GM6244M specification.
Brake Fluid:
DOT 3 or DOT 4.
Common Concerns:
Potential for AFM (Active Fuel Management) lifter issues (tapping noise), transmission cooler line leaks, and early wear on rear suspension components under heavy use. Exhaust manifold gasket leaks can also occur.
