When did the Highlander get an 8 speed transmission?

The Toyota Highlander first adopted an 8-speed automatic transmission for its gasoline V6 powertrain with the 2014 model year. Since then, different Highlander configurations have used different transmissions, including a 6-speed automatic for the 4-cylinder models and a CVT for hybrids.

Timeline of transmission changes

The following timeline outlines when Toyota shifted to an 8-speed automatic in the Highlander and how other variants were equipped.

• 2014 model year: Gasoline 3.5L V6 Highlanders move from a 6-speed automatic to an 8-speed automatic.


• 2014–2019: 4-cylinder Highlanders continue with a 6-speed automatic; Hybrid models retain a continuously variable transmission (CVT).


• Current generation (late 2010s through 2020s): Gasoline trims predominantly use the 8-speed automatic; Hybrid transmissions remain CVT.

These changes reflect Toyota's aim to improve acceleration, efficiency, and overall refinement across the Highlander lineup, with the 8-speed auto becoming standard on most gas models in the modern era.

What this means for buyers

For shoppers seeking the 8-speed experience, focus on the gasoline Highlander with the V6 engine. If you are considering a hybrid or a model with the 4-cylinder engine, the transmission choices differ (CVT for hybrids, 6-speed for most 4-cylinder setups in earlier years). Always verify the specific model year and trim, as transmissions can vary by market and generation.

Summary

In brief, the Highlander’s shift to an 8-speed automatic began with the 2014 model year for the V6 gasoline version. Since then, the standard 8-speed has become common on gas models, while the 4-cylinder variants and hybrids use different transmissions.

How long does a Toyota 8-speed transmission last?

For many car owners, the transmission may last the entire life of the vehicle, considering it can be about 200,000 miles before it needs to be replaced. However, factors can impact this like neglecting regular service. Toyota recommends that vehicles change their fluid between 60, 000 to 100,000 miles.

Is the Toyota 8-speed transmission reliable?

The reliability of Toyota's 8-speed automatic transmission is mixed, with general perceptions of durability clashing with reported issues like harsh shifting, delayed engagement, and premature failure, particularly in certain models like the Highlander and Sienna. While many owners report good long-term performance with regular maintenance, others have experienced significant problems that have led to technical service bulletins and class-action lawsuits. 
Common issues

• Harsh or delayed shifting: Some drivers have reported rough shifts, hesitations, or delays, especially when accelerating from a stop or during low-speed driving. 
• Erratic behavior: Problems such as the transmission downshifting unexpectedly or "hunting" for gears have been reported. 
• Premature failure: Some owners have experienced failures that may require replacement or rebuilding of the transmission. 
• Software glitches: Complex designs can lead to software malfunctions that affect shifting behavior, although some issues may be resolved with software updates. 

Factors that impact reliability

• Model and model year: Specific models, such as certain years of the Highlander and Sienna, have been identified as having a higher prevalence of issues. 
• Maintenance: Like any complex system, regular maintenance is crucial. Neglecting fluid changes can lead to wear and potential problems over time. 
• Driving habits: Aggressive driving can accelerate wear and tear on transmission components, such as the torque converter, potentially leading to issues. 

Things to consider

• Normal vs. abnormal: Some initial rough shifting can be normal for certain 8-speed transmissions and may improve over time as the transmission "learns" the driver's habits, notes Reddit users. 
• Service and updates: Toyota has issued technical service bulletins to address some problems and dealers can perform software updates and resets that may resolve shifting issues. 

What kind of transmissions do Toyota Highlanders have?

Despite its size, the Toyota Highlander is slick and pleasing to drive with an eager eight-speed automatic transmission to boot. Every 2022 Toyota Highlander comes with a 3.5-liter V6 engine that develops 295 horsepower and 263 lb-ft of torque.

What year to stay away from a Toyota Highlander?

Years to avoid in the Toyota Highlander include 2003, 2008, 2014, 2015, and 2020 due to common issues like transmission problems, oil leaks, and technology glitches. Other problematic years to consider are 2001-2007 (engine and climate control issues) and 2016-2019 (varying issues including potential oil leaks in some models).
 
This video discusses problems with the Toyota Highlander from 2020 to 2025, including paint issues: 54sCarnivautoYouTube · Feb 11, 2025
Toyota Highlander years to avoid

• 2001–2007: Prone to engine overheating, head gasket failures, and climate control issues like AC compressor and blower motor problems. 
• 2003: A big year for issues, particularly engine oil sludge buildup and premature transmission wear, according to Regan Motors Inc and Clutch. 
• 2008: A redesigned model that experienced oil cooler line leaks, which can cause engine damage if not addressed, and lower-quality interior components. 
• 2014: A recall was issued for the second-row seat assembly that may not lock correctly into the seat track, and there were also reports of issues that might be linked to the transmission, says Clutch and Reddit users. 
• 2015: Experienced growing pains from its redesign, with various reports of growing issues, according to Regan Motors Inc and Clutch. 
• 2020: Experienced early transmission and software problems, say Clutch and Reddit users. 

You can watch this video to learn more about common problems with the 2020-2025 Toyota Highlander: 51sChris DrivesYouTube · Jul 5, 2025