How reliable are Toyota Avalon?

Overall, the Avalon is widely regarded as a highly reliable full-size sedan, known for durability, predictable maintenance, and the potential for very long lifespans with proper care.

In this article, we examine the Avalon’s reliability across generations, summarize independent reliability ratings, and discuss what buyers should consider on the used-car market. We also address how the model’s market status—toward fewer new sales in recent years—affects ownership discussions and what it means for long-term ownership compared with peers in the segment.

Reliability ratings and independent assessments

The following summary reflects how major watchdogs and owner surveys tend to view the Avalon’s reliability over time. The information below comes from established industry sources and owner experiences.

• Independent rating agencies and automotive publications generally place the Avalon in the upper tier for reliability among large sedans, with ratings that tend to exceed averages for its class.


• The powertrains (notably Toyota’s V6 and the well-proven hybrid setup in later generations) are regarded as durable, with many examples reaching high mileages with routine maintenance.


• Maintenance costs for the Avalon are typically in line with mainstream Toyota sedans, often lower than some European or premium-brand peers when it comes to parts and routine service.

Taken together, these signals suggest that the Avalon offers a strong reliability story across many model years, reinforced by Toyota’s long-standing reputation for durable engineering.

Reliability by generation and technology

As Toyota refined the Avalon over its lifecycle, reliability generally remained solid, with improvements in ride quality and the efficiency gains brought by hybrid technology in later generations. This section summarizes the overarching reliability trajectory by era rather than pinning down year-by-year quirks.

• The early and mid-generations established a durable baseline: straightforward maintenance, robust drivetrain components, and a reputation for longevity when properly cared for.


• Mid-to-late generations refined reliability further by updating electronics and hybrid systems, continuing the trend of dependable ownership and fewer major mechanical issues reported by owners.


• Recent iterations benefited from Toyota’s latest reliability practices and shared technology with other highly regarded models, including the hybrid variant, which is praised for both efficiency and durability.

Overall, reliability remained consistently strong across generations, with hybrid variants contributing to a favorable long-term ownership profile due to proven hybrid technology and durable battery systems when properly maintained.

What to consider when buying a used Avalon

If you’re shopping for a used Avalon, reliability-focused checks can help ensure you pick a solid example. The list below explains why these factors matter and what to look for in practice.

• Complete service history: A well-documented maintenance record is a strong indicator of expected reliability, especially for a Toyota model known for long-term durability.


• Hybrid battery health (for hybrid models): Hybrid packs are a focal point for durability and cost of ownership; verify warranty status, past battery work, and any signs of aging or reduced performance.


• Transmission and drivetrain condition: For non-hybrid V6 versions, ensure smooth shifting and no unusual noises, which can signal wear that could impact reliability later.


• Recall and software update status: Confirm that all open recalls have been addressed and that software/ECU updates are current to avoid intermittent electrical or infotainment issues.


• Brakes, suspension, and steering wear: While these are not reliability failures themselves, excessive wear in these systems can reflect overall maintenance quality and affect long-term dependability.

By prioritizing a thorough pre-purchase inspection and a clean maintenance history, you can maximize the likelihood of owning a dependable Avalon, whether you’re seeking a comfortable family sedan or a long-term daily driver.

Market status and its implications for reliability data

In recent years Toyota shifted more of its lineup toward SUVs and crossovers, and the Avalon has seen diminished new-car availability in the U.S. This context matters for reliability data: most current Avalon owners are on the used market, which means reliability assessments rely heavily on older model years and real-world owner reports rather than new-car testing. For buyers, this translates into valuing a clean history and a willing seller who can confirm ongoing maintenance over time.

Summary

The Toyota Avalon has earned a strong reliability reputation across its lifecycle, underpinned by Toyota’s durable powertrains and a track record of low maintenance surprises. While new-vehicle availability in the U.S. has waned in recent years, well-maintained used Avalons continue to offer a compelling blend of comfort, space, and dependable ownership. For buyers prioritizing reliability, the Avalon remains a credible long-term option, particularly when a thorough pre-purchase inspection and complete service history accompany the purchase. If you need a direct, data-driven comparison, consider how it stacks up against peers like the Toyota Camry, Honda Accord, and other full-size/smaller-class alternatives in your market.

Is the Toyota Avalon a dependable car?

The Toyota Avalon is a highly reliable car, with owners reporting very positive experiences and high mileage potential. While most model years are considered solid, some specific issues have been noted, including infotainment problems in some 2013-2018 models and a potential oil cooler issue in the 3rd generation (2005-2012). Overall, the hybrid models are also very reliable, provided regular maintenance is performed.
 
You can watch this video for a buyer's guide and a discussion of common issues with the 2013-2018 Toyota Avalon: 58sThe Car Care NutYouTube · Oct 6, 2020
Strengths

• High Reliability: The Avalon consistently receives high reliability ratings from owners. 
• Longevity: Many owners report driving their Avalons for hundreds of thousands of miles with minimal major issues. 
• Strong Hybrid Performance: The hybrid versions are noted as being extremely reliable, with many of Toyota's hybrid system strengths. 

Potential Issues

• Infotainment: Some 2013-2018 models may experience issues with the infotainment system, such as screen freezing or phone connection drops. 
• Oil Cooler: A potential issue with the oil cooler was reported in the 3rd generation (2005-2012) models. 
• Maintenance: While reliable, the hybrid models require diligent oil change maintenance to prevent oil burning as mileage accumulates. 
• HVAC Hoses: Some models may experience HVAC hose clogs, though this was addressed by a Technical Service Bulletin (TSB). 

Model-specific considerations

• Third-generation (2005-2012): Often cited as a reliable generation, but be aware of the potential oil cooler issue and suspension components that may need attention at high mileage. 
• Fourth-generation (2013-2018): Some owners report a stiffer ride. The infotainment system may require updates and troubleshooting. 
• Hybrid models: Require regular oil changes to prevent issues. 

What year to stay away from Toyota Avalon?

The Toyota Avalon years to avoid are primarily 2005, 2006, 2007, 2008, 2011, 2013, and 2014 due to reports of issues like cracked dashboards, engine oil leaks, premature brake wear, transmission problems, and faulty VVTi oil lines. Specifically, the 2006 model is known for several significant problems, including an oil leak issue that could lead to engine damage, and the 2013 and 2014 models are criticized for a rougher ride and electrical issues.
 
This video discusses the best and worst Toyota Avalon years to own: 51sCar MavenYouTube · Jul 23, 2025
Specific years to approach with caution

• 2005: Has been associated with numerous recalls and issues, particularly concerning brakes, electrical accessories, and other components. 
• 2006: Noted for multiple problems including engine oil leaks (potentially from a faulty oil line), excessive oil consumption, transmission hesitations, and dashboard cracks. 
• 2007: Owners report issues like cracked dashboards, exhaust system problems, and paint delamination. 
• 2008: Has been subject to recalls and complaints about exhaust issues, dashboard cracks, paint defects, and wheel bearing wear. 
• 2011: Is listed as a model year with higher reported issues. 
• 2013: Has a high number of complaints related to engine, transmission, and electrical steering problems. 
• 2014: Faced complaints about a less luxurious ride compared to previous generations, early suspension wear, and infotainment system glitches. 

This video provides a buyer's guide for the Toyota Avalon, including potential issues with 2013-2018 models: 1mDiscerning CarsYouTube · Dec 16, 2023
Key issues to look for

• Engine and Oil Leaks: The 2006 model is especially notorious for a VVTi oil line that can rupture and cause engine damage. 
• Dashboard Cracks: This is a common complaint across several model years, including the 2005, 2006, 2007, and 2008 models. 
• Transmission Problems: Some 2013 and 2015 models reported transmission issues, with some sources noting transmission rebuilds are common for 2015 models. 
• Suspension and Ride: The 2014 model was noted for trading plushness for a sharper ride, with some early wear reported in the suspension. 
• Electrical Issues: Problems have been reported in various years, including headlight issues in 2013, a problematic blind spot monitor system in 2013, and infotainment glitches in 2014. 

What is the common problem of Toyota Avalon?

Common problems for the Toyota Avalon include ignition coil failures, especially after 100,000 miles, and leaking valve cover gaskets. Other issues include problems with the automatic transmission, such as rough shifting, and issues with the Evaporative Emission Control System (EVAP) (like a faulty canister or purge valve) which can cause a check engine light. Some model years have also reported specific issues like unintended acceleration and peeling paint.
 
This video discusses some of the common problems found in Toyota Avalons, including the engine and ignition coils: 56sSimple Mechanic AdviceYouTube · Nov 3, 2024
Engine 

• Ignition Coils: May fail after 100,000 miles, leading to misfires and a check engine light.
• Oil Leaks: Valve cover gaskets are a common source of oil leaks.
• EVAP System: Issues with the EVAP canister or purge control valve can trigger the check engine light.
• Oxygen Sensor: A failed oxygen sensor can cause the check engine light to turn on.
• Sludge Buildup: Can occur with infrequent oil changes and cause engine problems. 

Drivetrain and transmission

• Automatic Transmission: Some owners report the transmission not shifting correctly at higher mileages. 
• Unintended Acceleration: A serious problem reported in some models, particularly the 2014 model year, where the gas pedal may become stuck. 

Other common issues

• Rear Window Sunshade: This feature has been reported to fail and make a grinding noise. 
• Peeling Paint: A problem reported on certain model years, often on the roof and around the sunroof. 
• Infotainment System: Some owners have complained about distorted speakers and issues with the infotainment system. 

This video provides a buyer's guide for the 2013-2018 Toyota Avalon, including information on reliability and common problems: 59sDiscerning CarsYouTube · Dec 16, 2023

How long will a Toyota Avalon last?

Toyota Avalons are known for their long lifespan, with an average life expectancy of about 166,600 miles or around 14.4 years, and many owners report reaching over 200,000 miles with routine maintenance. Several factors contribute to this longevity, including the use of a robust V6 engine, consistent and timely maintenance, and the quality of Toyota's drivetrain components.
 
Factors contributing to the Avalon's longevity

• Routine maintenance: Keeping up with regular oil changes, fluid checks, and other scheduled maintenance is crucial for reaching high mileage. 
• Engine and drivetrain: The Avalon uses a durable V6 engine and other proven drivetrain components that can last for hundreds of thousands of miles when properly cared for. 
• Driving habits: Cars primarily used for long-distance highway driving often last longer due to less wear and tear from stop-and-go city traffic. 
• High mileage examples: Some owners have reported reaching well over 200,000 miles, with some reaching over 300,000 or even 400,000 miles. 

Tips for maximizing your Avalon's lifespan

• Follow the manufacturer's recommended maintenance schedule. 
• Change the engine oil regularly, and consider using synthetic oil. 
• Check and change the transmission fluid as recommended. 
• Address any minor engine issues or suspension problems promptly to prevent them from becoming major problems.