Toyota Sienna

Not to be confused with Toyota Sienta

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Toyota Sienna

Manufacturer	Toyota Motor Corporation
Production	1998–present
Predecessor	Toyota Previa
Class	Minivan

The Toyota Sienna is a family minivan currently manufactured by Toyota at Toyota Motor Manufacturing Indiana in Princeton, Indiana,United States for the North American market. It replaced the first-generation Previa van in 1998 with a more conventional front wheel drive layout and shares a heavily revised platform with the Camry.^[1] Both the Previa and original Sienna were smaller than the other minivans they competed against, but a redesign in 2004 increased the dimensions to match those of its competitors.^[2] The Sienna is the only minivan in its class to offer all-wheel-drive.^[3]

First generation (1998-2003)

First generation

Production	1998–2003
Model year(s)	1998–2003
Assembly	Georgetown, Kentucky, USA (TMMK)
Body style(s)	3-door minivan 4-door minivan
Layout	Front engine, front-wheel drive
Engine(s)	3.0 L 1MZ-FE V6 (1998-2000) 3.0 L 1MZ-FE V6 (01-03, VVT-i) 210 hp, 220 ft·lbf
Transmission(s)	4-speed automatic (A540E/A541E)
Wheelbase	114.2 in (2901 mm)
Length	190.5 in (4839 mm) (1998-2000) 194.2 in (4933 mm) (2001-03)
Width	73.4 in (1864 mm)
Height	67.3 in (1709 mm)
Related	Toyota Camry Toyota Camry Solara Lexus ES Lexus RX Toyota Highlander Toyota Avalon

In late 1997, Toyota launched the front wheel drive 1998 Sienna in the North American market as a replacement for the mid-engined Previa. The Sienna debuted with a 3.0-liter 1MZ-FE V6 engine rated at 145 kW and 284 N·m (209 lb·ft) of torque. Built on an extended platform of the Camry, the Sienna was appropriately marketed as the "Camry of minivans," capitalizing on the Camry's popularity and reputation. The Sienna also touted best-in-class fuel economy of 16 city/22 highway miles per gallon. It was built in Georgetown, Kentucky. A year after its release, the Sienna faced new competition from Honda's redesigned Odyssey minivan, larger and offering a V6 like the Sienna.

2001-2003 Toyota Sienna LE

For the 2001 model year, the Sienna underwent a mid-cycle refresh. This update included a facelift to both front and rear fascias which added a redesigned front grille and bumper along with revised rear taillights sporting a more modern appearance (clear-lens turn-signals as opposed to amber-coloured). Toyota also revamped the center console area to add more usability to the HVAC controls along with new locations for the accessory switches (rear vent, power sliding doors, heated seats). The engine also came equipped with a variable valve timing feature VVT-i boosting output to 210 hp (157 kW) and 220 lb·ft (298 N·m) torque.

This generation was noteworthy for its impressive safety content as one of the few minivans to offer options including front seat-mounted side torso airbags and Vehicle Stability Control. Anti-lock braking was standard. The IIHS rated the Sienna "Good" in all six frontal crash test measures.^[4]

NHTSA crash test ratings (1999, no side airbag):^[5]

Frontal Driver:
Frontal Passenger:
Side Driver:
Side Rear Passenger:

Second generation (2004-2010)

Second generation

Production	2004–Jan. 2010
Model year(s)	2004–2010
Assembly	Princeton, Indiana, United States (TMMI)
Body style(s)	4-door minivan
Layout	Front engine, front-wheel drive / all-wheel drive
Engine(s)	3.3 L 3MZ-FE V6 (VVT-i) 3.5 L 2GR-FE V6 (Dual VVT-i)
Transmission(s)	5-speed automatic U151E (FWD) U151F (AWD)
Wheelbase	119.3 in (3030 mm)
Length	200 in (5080 mm) (2004-05) 201 in (5105 mm) (2006-present)
Width	77.4 in (1966 mm)
Height	68.9 in (1750 mm)
Curb weight	4300 lbs (FWD) 4525 lbs (AWD)
Related	Toyota Camry Toyota Camry Solara Lexus ES Lexus RX Toyota Highlander Toyota Avalon Toyota Venza

In January 2004, the second-generation Sienna was unveiled at the Detroit Auto Show. Production shifted to Princeton, Indiana, and the former Georgetown plant was retooled to build the second generation Camry Solara. In order to make the redesign more successful, Toyota assigned Yuji Yokoya as chief engineer on the new Sienna project. Yuji and his family drove the previous Sienna over 53,000 miles (85,000 km) throughout North America to find weaknesses from the previous model.^[6]

The new redesign continued to offer the CE, LE, and XLE trims along with a new, more luxurious, leather-trimmed XLE Limited model. All Siennas were now powered by an updated ULEV certified 3.3-liter 3MZ-FE V6 engine paired with a new 5-speed automatic transmission. The gear-shift lever was also moved from the steering column to the lower-center center console area and worked in a zig-zag pattern much like that on the Lexus RX. New styling allowed for a coefficient of drag figure of 0.30 C_d. Fuel economy was rated at 17 city/25 highway (16 city/22 highway for AWD) under revised EPA estimates.

The redesigned Sienna also offered a variety of new features, many of which were derived from other competition within segment^{[citation needed]}. For example, while the Odyssey's "Magic Seat" was a one-piece folding bench, the Sienna's added a more versatile 60/40 split configuration. In addition, the flat-folding third row seat was offered even with all-wheel-drive.^[1] Power-retractable side-windows which rolled down completely into the second-row sliding-doors (introduced in the Mazda MPV) were also new along with available eight-passenger seating (CE and LE only), dual power sliding doors, and power liftgate (standard on XLE and Limited, optional on LE).

Standard features included remote keyless entry, tilt-and-telescopic steering wheel, high solar energy-absorbing glass (HSEA) on the windshield and front windows, rear climate control, and run-flat tires that came standard with the available all wheel drive. All 2004-2007 Siennas also came standard with a factory tow package and a 3,500 pounds (1,600 kg) towing capacity. Major options included HID Xenon headlamps (XLE Limited), Dynamic Laser Cruise Control, front and rear obstacle detection, a "kid-view" mirror (similar to wide-angle mirrors found in a school bus), voice-activated navigation system which included backup camera, 10-speaker JBL "Synthesis" audio and rear-seat DVD entertainment system with a flip down screen.

Safety

The Sienna comes standard with anti-lock braking, brake assist, electronic brakeforce distribution, traction control and a tire-pressure monitor. Side torso airbags, and side curtain airbags were standard on certain 2004 and 2005 model trims while optional on others, but became standard on all 2006 trims. Vehicle Stability Control initially optional on lower trims became standard for 2008 models.

The IIHS gives the Sienna an overall "Good" score in their frontal offset crash test with "Good" marks in all six measured categories. All 2006 models and later receive a "Good" overall score, while pre-2006 models without side airbags receive an "Acceptable" score for side impacts.^[7]

NHTSA crash test ratings (2004, no side airbag):^[8]

Frontal Driver:
Frontal Passenger:
Side Driver:
Side Rear Passenger:
2wd Rollover:

Model year changes

For the 2006 mid-cycle refresh, the front fascia, side molding, and rear taillamps were restyled. Blue-backlit electroluminescent Optitron gauges were added to LE, XLE, and Limited trims. The "XLE" prefix in "XLE Limited" was removed to lessen confusion, and new exclusive equipment for this trim included an optional memory function for the power driver's seat and side-view mirrors (also available on XLE as an option) and power-folding exterior side-view mirrors with integrated in-glass LED turn-signal repeaters. Other options included Bluetooth capability and a power-folding third-row seat. Front row side torso airbags and side curtain airbags for all three rows became standard equipment on all models. The optional rear seat audio system was discontinued. Horsepower and torque ratings were changed to meet SAE's new standard to 215 hp (160 kW) and 222 ft·lbf (from 230 hp (172 kW) and 242 lb·ft (328 N·m), Toyota also now rates engines on 87 octane)

For 2007, a new ULEV-II certified 3.5-liter 2GR-FE V6 engine rated at 266 hp (198 kW) with a rated fuel economy of 17/23 MPG for front-wheel-drive models and 16/21 MPG for AWD models replaced the previous 3.3-liter V6. The tire pressure monitor was upgraded, and a new seven-spoke alloy wheel design was made exclusive to the Limited and AWD models.^[9]

For 2009, the Sienna remains largely unchanged save for a revision in pricing to become even more competitive through several available comprehensively-equipped "extra-value package" offerings. In the Canadian market, base prices are lowered by up to as much as $1,500.^[10]

2010 specifications

• Engine: 3.5 L DOHC 24-valve Dual VVT-i V6 - 2GR-FE
• Output: 266 hp (200 kW) at 6200 RPM and 248 ft·lbf (336 N·m) at 4700 rpm (SAE Net)
• Transmission: 5-speed electronically controlled automatic transmission with Intelligent Grade-Logic Control (ECT-i)
• MPG: EPA Estimated 23 MPG Highway, 17 MPG City (2WD), and 21 Highway, 16 City (AWD).
• Drivetrain: Front wheel drive, all wheel drive available on LE, XLE, XLE Limited (CE in Canada)
• Turning Diameter: 36.8 ft (11.2 m)

Third generation (2011-)

The redesigned Sienna premiered at the Los Angeles Auto Show in early Dec 2009. The new Sienna will arrive at dealers beginning in February 2010.^[11] The Sienna will be offered in five trim levels, the Sienna grade, LE, XLE Limited and for the first time the SE trim. The new SE offers revised bodywork, "Altezza" style clear tail lamps, 19-inch wheels, firmer suspension and transmission tuning for a sportier ride. All-wheel-drive is only available with the V6 engine on the LE, XLE and Limited model trims.

The previous 3.5-liter 2GR-FE continues, but for the first time the Sienna offers a four cylinder, the 1AR-FE. An Electric Power Steering (EPS) system replaces the previous hydraulic power steering system. Toyota expects EPA-estimated mileage figures of 19 mpg city/26 mpg highway for models powered by the 4-cylinder engine. And 18 mpg_-US (13 L/100 km; 22 mpg_-imp) city/24 mpg_-US (9.8 L/100 km; 29 mpg_-imp) highway (16 mpg_-US (15 L/100 km; 19 mpg_-imp) city/22 mpg_-US (11 L/100 km; 26 mpg_-imp) highway on AWD models) on V6 models. An optional tow package for V6 models is rated to tow 3,500 pounds (1,600 kg). For the interior a sliding second row with recliner style chairs is optional.

Sales

Awards

2004:

• Car and Driver's Five Best Trucks Van Award
• Edmunds Editor's Most Wanted Van and Edmund Consumer's Most Wanted Van
• Rated "Double Best Pick" by IIHS PDF

References

External links

• Toyota USA Sienna site
• YahooAutos-2006 Toyota Sienna
• AutomobileMagazine-2005 Toyota Sienna (review)
• Toyota Canada Sienna site (English)
• Toyota Canada Sienna site (French)
• Toyota Mexico Sienna Site (Spanish)
• SiennaChat.com
• SiennaClub.ru (Russian Owners Club)

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