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What is the mileage rating for the 2017 Toyota Sienna?

The 2017 Toyota Sienna’s mileage depends on the drivetrain: front‑wheel drive (FWD) models are rated at 19 mpg city / 27 mpg highway / 22 mpg combined, while all‑wheel drive (AWD) models are rated at 18 mpg city / 24 mpg highway / 20 mpg combined.


Fuel economy by drivetrain


The EPA fuel economy estimates for the 2017 Sienna reflect the van’s 3.5-liter V6 engine paired with an 8‑speed automatic transmission. These figures are the standard benchmarks used for most trims and configurations, with the primary variable being whether the vehicle is FWD or AWD.



  • Front-Wheel Drive (FWD): 19 mpg city / 27 mpg highway / 22 mpg combined

  • All-Wheel Drive (AWD): 18 mpg city / 24 mpg highway / 20 mpg combined


These EPA numbers are estimates designed to help potential buyers compare fuel efficiency. Real-world mileage can vary due to driving style, terrain, climate control usage, and cargo load.


Factors that influence real-world mileage


In daily driving, factors such as city versus highway mix, stop‑and‑go traffic, and towing or heavy loads can push mileage above or below the EPA estimates. The Sienna’s efficiency is generally higher on long highway trips and lower in dense urban commuting.


Why the ratings matter for buyers


For families and frequent travelers, the mileage numbers inform not only fuel costs but also long‑term ownership expenses. The choice between FWD and AWD can affect both efficiency and traction, depending on regional weather and road conditions.


Summary


The 2017 Toyota Sienna offers two EPA-rated profiles: FWD at 19/27/22 mpg and AWD at 18/24/20 mpg. While these figures provide a baseline, actual mileage will vary with driving conditions and habits. Overall, the Sienna remains a practical option for those prioritizing space and reliability, with fuel economy that reflects its minivan role.

How many miles can a 2017 Toyota Sienna last?


A 2017 Toyota Sienna has a life expectancy of well over 200,000 miles and can potentially reach 300,000 miles or more with proper care and maintenance. Its longevity is due to its reputation for reliability, and owners report success with high mileage, with some seeing up to 480,000 miles. Key factors for extending the vehicle's life include regular oil changes, transmission fluid flushes, and other scheduled maintenance. 
Factors influencing life expectancy

  • Maintenance: Consistently following the maintenance schedule is the most critical factor for longevity. This includes regular oil changes, tire balancing, and changing transmission fluid as recommended by the manufacturer. 
  • Driving conditions: Where and how the vehicle is driven can impact its lifespan. A vehicle used mostly for long trips and less for short, stop-and-go city driving is likely to last longer. 
  • Owner behavior: Many owners report high mileage, with some driving their Sienna past 300,000 miles and still seeing it run well. 
  • Engine and transmission: The engine and transmission are known for durability, but the transmission can last a long time if the fluid is changed regularly, according to Butler Toyota of Jacksonville. 
  • Recalls: The 2017 model has a few recalls, but these are addressed through service campaigns to ensure the vehicle's safety and reliability. 

How to ensure your Sienna lasts
  • Follow the maintenance schedule: Adhere to the manufacturer's recommended service intervals for oil changes, fluid flushes, and other checks. 
  • Consider synthetic oil: Using synthetic oil can help ensure the engine stays well-lubricated and protected. 
  • Maintain transmission health: Keep up with the recommended transmission fluid changes to prevent issues. 
  • Drive mindfully: Driving habits can have a significant impact. Avoid aggressive acceleration and braking when possible. 
  • Keep it clean: Regularly cleaning the vehicle's interior and exterior can help preserve its condition.
  • Address minor issues promptly: Don't ignore small problems, as they can lead to bigger issues down the road.



What year of Toyota Sienna to stay away from?


The Toyota Sienna years to generally avoid are the 2004, 2005, 2007, 2008, 2011, and 2017-2018 models due to common issues like sliding door problems, transmission troubles, and engine/suspension concerns. While many Siennas are reliable, these specific model years have more reported complaints and recalls.
 
Model years to avoid

  • 2004: This first year of the second generation had the most owner complaints, particularly for sliding door issues. 
  • 2005: This year is associated with problems such as a faulty automatic sliding door and climate control issues. 
  • 2007: The 2007 model is often cited for engine and transmission problems, as well as recall issues with the transmission shift lever assembly. 
  • 2008: Common problems include minor electrical issues and airbag/seat belt concerns. 
  • 2011: This model year is known for premature suspension wear and engine problems, including stalling and rough idling. 
  • 2017-early 2018: The 8-speed transmission in these models has been linked to issues like whining, jerky operation, and oil leaks. 

Other considerations
  • Some sources suggest avoiding the 2006 model due to problems like failed oxygen sensors and sludge buildup, though it is still considered reliable overall. 
  • While the 2011-2016 models with the 6-speed transmission are generally considered reliable, the 2017-2018 models with the 8-speed transmission are the ones to approach with caution due to transmission problems. 
  • Regardless of the model year, it's always wise to get a pre-purchase inspection from a trusted mechanic before buying any used car.



What is the most reliable year of the Toyota Sienna?


The most reliable Toyota Sienna years are the 2015 and 2016 models, the newer 2021-current models, and several others like the 2018, 2003, and 2010, which have high dependability ratings. Newer models feature hybrid efficiency and safety tech, while the 2015 and 2016 years offer a great balance of features, value, and reliability. The 2003 and 2010 models are also highly regarded for their durability and proven performance.
 
Specifically recommended model years

  • 2015 and 2016: Excellent blend of reliability, features, and value. 
  • 2018: Earned the highest score for dependability in the minivan segment in 2021. 
  • 2021-current: Modern redesign with standard hybrid engine and advanced safety features. 
  • 2003: Named the "Most Reliable Minivan" by Consumer Reports in 2002. 
  • 2010: Often cited as an extremely reliable model, with examples having over 300,000 miles. 

Other reliable options
  • 2009-2014: These years are generally considered safe to buy, with the 2009 and 2014 receiving specific praise. 
  • 2017 and 2019: Also considered reliable choices. 
  • 2011: Praised for its safety features and overall reliability. 

What to consider when choosing
  • Budget: Newer models are more expensive, but offer modern features and hybrid efficiency. Older models like the 2003 or 2010 are a good value, but may require more maintenance or lack modern technology like Bluetooth. 
  • Maintenance history: Regardless of the year, a well-maintained vehicle will be more reliable. Look for a complete service history, especially for critical components like the timing belt and water pump. 
  • Features: Consider whether you prioritize modern safety features, a hybrid engine, or other amenities. Some newer models, like the 2021+, come standard with safety technology like automatic emergency braking and adaptive cruise control. 



Which lasts longer, Toyota Sienna or Honda Odyssey?


Which lasts longer, the Toyota Sienna or Honda Odyssey? While both minivans are designed to last for a long time, the Honda Odyssey currently has a higher J.D. Power reliability rating than the latest Toyota Sienna to be rated,3, 4 which suggests that it may be able to last for longer.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.