🏷️ Basic Information

Make:

Toyota

Model:

Sienna

Year:

2008

Chassis Code:

XL30

👋 Introduction

Vehicle Segment:

Full-size Minivan

Target Audience:

Families, individuals seeking versatile cargo and passenger transport

Key Competitors:

Honda Odyssey, Chrysler Pacifica/Town & Country, Dodge Grand Caravan, Kia Sedona, Ford Freestar (discontinued)

Vehicle Strengths:

Toyota's reputation for reliability, comfortable ride, spacious interior, versatile seating configurations, optional AWD, strong V6 engine.

Manual Advantage:

Licensed, factory-derived information, comprehensive coverage, digital format for easy access and searchability, cost-effective compared to traditional printed manuals.

📋 Manual Details

Engine Coverage:

3.5L 2GR-FE V6

Transmission Coverage:

6-speed Automatic Transmission (U660E)

Drivetrain Coverage:

Front-Wheel Drive (FWD) and All-Wheel Drive (AWD)

Estimated Page Count:

Extensive (typically 2000+ pages for complete factory service manuals)

Type:

Service and Repair Manual Software

Language:

English

Format:

Digital Download (PDF)

📖 Manual Coverage

Engine Systems:

Engine mechanical, lubrication, cooling, fuel, ignition, exhaust, emissions control, engine management (ECM/PCM)

Transmission Systems:

Automatic transmission operation, diagnosis, repair, torque converter, internal components, transmission control

Drivetrain Systems:

Front axle, rear axle (AWD), driveshafts, CV joints, differentials

Suspension Systems:

Front suspension (struts, control arms, ball joints), rear suspension (multi-link), springs, shock absorbers, stabilizers

Steering Systems:

Power steering system, steering rack, tie rods, steering column, alignment specifications

Brake Systems:

Front and rear brakes (disc), ABS, EBD, brake fluid, hydraulic system, parking brake

Electrical Systems:

Battery, charging system, starting system, lighting, instruments, gauges, horn, wipers, power accessories, fuse box layouts

HVAC Systems:

Heating, ventilation, air conditioning (A/C) system components, refrigerant, diagnosis, repair

Body And Interior:

Body panels, doors, glass, seats, trim, interior components, body repair, corrosion protection

Wiring Diagrams:

Comprehensive electrical wiring diagrams for all systems

Maintenance Procedures:

Oil and filter change, air filter replacement, spark plug replacement, coolant flush, brake fluid flush, transmission fluid change

Repair Procedures:

Engine component replacement (e.g., water pump, alternator), transmission overhaul, brake caliper replacement, suspension component replacement, electrical component diagnosis and replacement

Diagnostic Procedures:

Troubleshooting guides, symptom-based diagnostics, DTC (Diagnostic Trouble Code) lookup and interpretation, scan tool usage

Installation Procedures:

Component installation (e.g., brake pads, suspension parts), accessory installation (limited)

Specifications And Data:

Torque specifications for all fasteners, fluid capacities and types, electrical specifications, alignment settings

Depth:

Comprehensive: Covers routine maintenance to major component overhauls and diagnostics. Factory-level detail.

📊 Manual Specifications

Format Details:

PDF. Searchable text with high-resolution diagrams and illustrations.

Quality:

High-resolution, suitable for printing individual pages or sections.

Binding:

N/A (Digital Download)

Paper:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Code:

2GR-FE

Engine Type:

V6, DOHC, 24-valve, VVT-i (Variable Valve Timing with intelligence)

Displacement:

3.5 Liters (3456 cc)

Bore X Stroke:

94.0 mm x 83.0 mm

Compression Ratio:

10.0:1

Horsepower:

265 hp @ 6200 rpm

Torque:

245 lb-ft @ 4700 rpm

Fuel Delivery:

Electronic Fuel Injection (EFI), Sequential Multiport Fuel Injection (SFI)

Recommended Fuel:

87 Octane Unleaded Gasoline

Engine Oil Type:

SAE 0W-20 Synthetic Motor Oil

Engine Oil Capacity:

6.4 US Quarts (6.1 Liters) with filter change

Coolant Type:

Toyota Super Long Life Coolant (SLLC) or equivalent (Pink)

Coolant Capacity:

Approx. 9.5 US Quarts (9.0 Liters)

🔧 Transmission

Type:

6-Speed Automatic

Transmission Code:

U660E

Drive Modes:

Driver-selectable modes (e.g., Snow mode) may be available depending on trim.

Transmission Fluid Type:

Toyota Genuine ATF WS (World Standard)

Transmission Fluid Capacity:

Approx. 4.5 US Quarts (4.3 Liters) for drain and fill; 8.0 US Quarts (7.6 Liters) for overhaul

📐 Dimensions

Length:

200.6 inches (5095 mm)

Width:

78.1 inches (1984 mm)

Height:

68.9 inches (1750 mm)

Wheelbase:

119.3 inches (3030 mm)

Front Track:

67.5 inches (1715 mm)

Rear Track:

67.3 inches (1709 mm)

Curb Weight FWD:

4,477 lbs (2031 kg)

Curb Weight AWD:

4,630 lbs (2100 kg)

Gross Vehicle Weight Rating Gvwr:

5,995 lbs (2723 kg) (Typical)

Cargo Volume Behind 3Rd Row:

39.1 cu ft (1107 Liters)

Cargo Volume Behind 2Nd Row:

87.1 cu ft (2466 Liters)

Cargo Volume Behind 1St Row:

148.5 cu ft (4205 Liters)

🛡️ Safety Features

NHTSA Front Impact Driver:

5 Stars

NHTSA Front Impact Passenger:

5 Stars

NHTSA Side Impact Front Seat Occupant:

5 Stars

NHTSA Side Impact Rear Seat Occupant:

5 Stars

NHTSA Rollover Resistance Score:

4 Stars (Tip-up rating)

Antilock Braking System ABS:

Standard

Electronic Brakeforce Distribution Ebd:

Standard

Brake Assist Ba:

Standard

Traction Control System TCS:

Standard

Electronic Stability Control Vsc:

Standard

Airbags:

Front airbags, front-side airbags, three-row side curtain airbags

Seatbelts:

3-point seatbelts with pretensioners and force limiters for all seating positions, LATCH (Lower Anchors and Tethers for Children) system

💡 Technology Features

Available Features:

AM/FM stereo with CD player, MP3 capability, auxiliary audio input. Optional premium JBL audio system, rear-seat entertainment system (RES), navigation system with touch screen.

Features:

Standard features like ABS, VSC, and Traction Control. Parking sensors may be optional on certain trims.

Connectivity Options:

Auxiliary audio input jack standard on most trims. Bluetooth hands-free calling and audio streaming may be available on higher trims or as part of an optional package.

🔧 Maintenance

Oil Change Interval:

Every 5,000 miles (8,000 km) or 6 months, whichever comes first, under normal driving conditions. Severe conditions may require more frequent changes. Refer to manual for details.

Engine Air Filter Replacement:

Inspect every 15,000 miles (24,000 km), replace as needed or at 30,000 miles (48,000 km) under normal driving.

Cabin Air Filter Replacement:

Inspect every 15,000 miles (24,000 km), replace as needed or at 30,000 miles (48,000 km) under normal driving.

Spark Plug Replacement:

Iridium-tipped spark plugs: Approximately 120,000 miles (192,000 km).

Transmission Fluid Change:

Recommended around 60,000 - 100,000 miles (96,000 - 160,000 km), depending on driving conditions and Toyota's specific recommendations for WS fluid, which is considered 'lifetime' by some but periodic inspection/change is advised for longevity.

Coolant Replacement:

Toyota Super Long Life Coolant: First replacement at 100,000 miles (160,000 km) or 10 years, then every 50,000 miles (80,000 km) or 5 years thereafter.

Common Complaints:

Rear liftgate actuator failure, occasional power sliding door issues, potential for oil consumption in some high-mileage engines (though the 2GR-FE is generally robust), transmission shudder (sometimes related to fluid or valve body).

Troubleshooting Focus:

The manual will provide diagnostic procedures for these and other potential issues, including specific tests and component checks.

📚 Vehicle History

Manufacturer:

Toyota Motor Corporation, renowned for reliability, durability, and quality (often referred to as 'Toyota Quality').

Generation:

Second Generation (2004-2010)

Key Changes For 2008:

Minor updates, potentially including new exterior paint colors or interior trim variations. The core platform and powertrain remained largely consistent from the 2004 redesign.

Manufacturing Location:

Georgetown, Kentucky, USA (North American production)

🏆 Awards & Recognition

Award Examples:

The Sienna has consistently been a top-rated minivan in its class by automotive publications such as Consumer Reports, J.D. Power, and Edmunds, often cited for its reliability, practicality, and comfort.

Jd Power Reliability:

Typically receives above-average to best-in-class ratings for dependability and quality from J.D. Power and Associates.