What is the major problem of the Lexus RX 350?

Across generations, the most consistently cited problem by owners and reviewers is related to the vehicle’s transmission, including shifting behavior and reliability concerns. This article explains the nature of that issue, how it varies by model year, and practical steps for owners and prospective buyers.

The Lexus RX 350 has evolved through several generations since its introduction, offering a blend of comfort, reliability, and luxury. While many examples remain dependable for long lifespans, a pattern emerges where transmission performance stands out as the primary reliability challenge reported by a notable portion of owners, especially as mileage increases. In some model years, other issues such as oil consumption and occasional electrical glitches have also appeared, but transmission-related concerns consistently top the list of commonly reported problems.

Most commonly reported major problem: transmission issues

Transmission-related problems have been the centerpiece of reliability concerns for many RX 350 owners. The lineup has transitioned from a six-speed automatic in earlier generations to an eight-speed automatic in later models, and shifting behavior can vary by year. Drivers report symptoms such as hesitation, harsh or delayed shifts, shuddering, and, in some cases, more serious transmission failure. The exact nature of the problem can differ between generations and mileage, but the pattern remains the most frequently discussed.

Generational trends in transmission concerns

The specifics differ by generation, but the overarching pattern is consistent across many model years:

• Early generations (roughly 2007–2012 RX 350): Some owners report rough or hesitant shifts as the transmission ages, along with occasional transmission fluid concerns.


• Mid-generation updates (2013–2015 RX 350): With the introduction of refinements, some drivers still experience shifting quirks or torque-converter-related issues, particularly at higher mileage.


• Later generations (2016–present RX 350/350L with 8-speed auto): Shifting surges, occasional mis-shifts, or reluctance to engage can occur, and some concerns focus on the longevity of the 8-speed design under heavy use.

Concluding paragraph: Transmission reliability is the most consistently reported major problem for the RX 350, though the severity and frequency of issues vary by model year, maintenance history, and driving conditions. Regular service, proper fluid maintenance, and timely diagnostics when symptoms appear can mitigate risks for many owners.

Other notable reliability concerns

In addition to transmission issues, owners have reported other recurring concerns that can affect overall ownership experience. These problems are generally less widespread than transmission issues but are still important to consider during maintenance planning or when evaluating a used RX 350.

Oil consumption and engine-related concerns

Some model years of the RX 350 equipped with the 3.5-liter V6 (2GR-FE) have drawn attention for higher-than-average oil consumption. Owners may notice more frequent oil top-ups, and in certain cases this prompted service bulletins or warranty coverage discussions. Monitoring oil levels and consumption trends is advisable, especially for higher-mileage examples.

Electrical and infotainment glitches

There are reports of intermittent electrical issues, including infotainment system freezes, navigation quirks, or dashboard warning lights activating without a clear mechanical cause. While typically not life-safety critical, these issues can be disruptive and may require software updates or component replacements.

Suspension, steering, and wear items

As with many mid- to high-mileage SUVs, wear on suspension and steering components—such as control arms, bushings, or shocks—can lead to creaks, clunks, or a less confident ride. Regular inspection and timely replacement of worn parts help maintain ride quality and handling.

Concluding paragraph: Oil consumption, electrical glitches, and suspension wear are notable concerns for some RX 350s, but they are typically less prevalent than transmission issues. A well-documented maintenance history and pre-purchase inspection can help identify these problems before they become costly repairs.

What to do if you own or are considering buying

To address these risks, here is a practical checklist for current owners and prospective buyers. The goal is to identify issues early and maintain the vehicle in good condition to preserve reliability.

Inspection and maintenance steps

• Obtain a comprehensive diagnostic check focused on the transmission, including transmission fluid condition, fluid level consistency, and any fault codes from the transmission control module.


• Review service history for transmissions-related maintenance, fluid changes, and any recalls or campaigns specific to your model year.


• Monitor oil consumption over time: log oil level readings and consumption, and discuss any rapid increases with a Lexus service center.


• Test infotainment and electrical systems during a test drive; check for any warning lights or abnormal behavior.


• Inspect suspension components for wear, particularly on higher-mileage examples, and address any noises or handling concerns promptly.

Concluding paragraph: By focusing on transmission health, oil usage, and electrical/suspension wear, owners can manage the most significant reliability risks and maintain a smoother ownership experience with the RX 350.

Summary

The Lexus RX 350 remains a popular, comfortable luxury SUV with strong resale value and a long-standing reputation for reliability. The most consistently cited major problem across generations is transmission reliability, including shifting behavior and potential failures as the vehicle ages. Oil consumption, electrical glitches, and suspension wear are notable secondary concerns that vary by year and usage. A thorough pre-purchase inspection, attentive maintenance, and staying current on recalls can help mitigate these risks and preserve the RX 350’s strong overall reputation.

Takeaway: If you are considering an RX 350 or already own one, prioritize transmission health checks, monitor oil consumption, and keep electronics and suspension in good repair to ensure long-term satisfaction.

What is the most common problem with Lexus RX350?

The most common problem with the Lexus RX 350 is a massive oil leak, specifically from the VVT-i oil line, which can lead to rapid oil loss and potential engine failure, especially in older models like the 2010. Other frequent issues include faulty rain sensors, especially in newer models, resulting in wipers that malfunction randomly. Older model years (2007 and 2010) also show a tendency for airbag warning lights and transmission problems, while some 2016 models experienced rough shifting and transmission issues.
 
This video discusses the 2013 Lexus RX 350's common problems, including oil leaks and other issues: 55scar PROblemsYouTube · Jun 26, 2022
Engine and oil leaks 

• VVT-i oil line leak: This is a recurring issue, particularly in older models like the 2010, where the oil line can burst, causing significant oil loss and potential engine damage if not addressed immediately. 
• Check Engine light: This can be triggered by various engine issues, including problems with the variable valve timing system. 

Electrical and sensor problems 

• Rain sensor malfunction: Both older and newer models have reported issues with the rain-sensing wipers not functioning correctly or stopping randomly. 
• Airbag warning light: This has been reported across several model years, often linked to codes B0111 and B0116 due to issues like faulty sensors or a depleted airbag backup battery. 
• Infotainment system issues: Problems like malfunctioning touchscreens, unresponsive climate controls, and other glitches have been reported, particularly in recent years. 

Transmission and drivetrain issues

• Rough shifting: Some models, such as the 2016, have been reported to have delayed gear shifts and a lack of smoothness.
• Transmission failure: In the 2016 model year, transmission problems were significant enough to cause concerns about long-term reliability. 

Other potential problems

• Spontaneously shattering sunroofs: Though rare, this has been reported in some model years and is a significant safety concern. 
• Body integrity issues: Some older models, such as the 2010, have experienced body-related issues like rattling doors. 
• Steering mechanism leaks: These can be costly to repair. 

What is the average lifespan of a Lexus RX350?

A Lexus RX 350's life expectancy is typically between 250,000 and 300,000 miles with proper maintenance and care, though many owners report exceeding this significantly. This translates to about 16 to 20 years of service, based on averaging 15,000 miles per year. Key factors for achieving this longevity include routine oil changes, fluid exchanges, and other scheduled maintenance, say Reddit users and CarBuzz. 
Factors that contribute to a long life

• Regular maintenance: Following the recommended service schedule is crucial. This includes regular oil changes, as well as exchanging transmission fluid and coolant, according to Facebook users and Reddit users. 
• Smart driving: Driving sensibly helps reduce wear and tear on the vehicle's components. 
• Proactive repairs: Addressing minor issues as they arise can prevent them from becoming major, costly problems down the road. 
• High-quality parts: Using high-quality parts during repairs will contribute to the vehicle's long-term health. 

Potential wear points

• While the RX 350 is very reliable, some common points to watch for include valve cover gaskets leaking oil and rear wheel bearings wearing out, note Facebook users and Reddit users. 
• Owners also recommend checking the transmission fluid level and shifting behavior, especially in high-mileage vehicles, suggests Facebook. 

What to expect from a high-mileage RX 350

• It's common to see RX 350s with 250,000 to over 300,000 miles still running strong. 
• Some owners report that while the car may still drive fine, the transmission might become sluggish around the 190,000-mile mark, but could still last for tens of thousands of miles more without repair. 
• The decision to keep driving or retire the vehicle often comes when a major repair, like an engine drop, is needed. 

Is the Lexus RX350 a reliable car?

Yes, the Lexus RX 350 is considered a very reliable car, known for its dependability, with a strong reputation for longevity and few major mechanical issues across many model years. However, specific model years have a history of more reported problems, and some owners have noted issues with road noise, the infotainment system, and the automatic rear door. 
Key reliability points

• Overall dependability: The RX 350 is widely recognized for its reliability and has a reputation for being a sturdy and dependable vehicle. 
• Strong reputation: Lexus's brand standards contribute to the RX 350's exceptional reliability. 
• Longevity: Many sources suggest the RX 350 can last for 250,000–300,000 miles or more, notes PA Auto Sales. 

Potential issues to be aware of

• Specific model years: Some model years have more reported issues. It's wise to be cautious with the 2007, 2008, 2010, 2016, and 2017 models, which have been flagged for potential problems like oil leaks and transmission issues, says Auto Web Expo. 
• Other common complaints: Some owners have mentioned issues with wind and road noise, and the automatic rear door, reports Cars.com. 
• Technology: The infotainment system, particularly the touchpad on the center console, has been cited as sensitive and sometimes difficult to use. 

Reliable models to consider

• If buying a used model, a model year from 2011–2015 or 2018, 2019, or 2021 is a good choice based on many reviews, according to CoPilot for Car Shopping. 

Which year RX350 to avoid?

Years to avoid for the Lexus RX 350 include 2007, 2008, 2010, 2016, and 2017 due to common problems like oil leaks, engine issues, brake failures, and faulty sensors. The 2010-2012 models are particularly prone to a ruptured oil cooler line that can cause engine failure, while the 2007-2009 models had issues with cracking dashboards and a faulty brake master cylinder. The 2016 and 2017 models saw recalls related to airbags and issues with rain sensors, notes CoPilot.
 
You can watch this video to learn about the history of the Lexus RX 350 and common problems in different generations: 1mThe Miles DrivenYouTube · Dec 22, 2024
Years to avoid and why

• 2007–2009: These models are known for cracking dashboards and a faulty brake master cylinder that can lead to brake failure. 
• 2010–2012: A common and severe problem with these years is the oil cooler line, which can rupture and lead to engine failure. 
• 2016–2017: The 2016 model year had airbag recalls and was the first year of a new generation, which can lead to early bugs. The 2017 model had issues with the rain sensor and wipers, in addition to having its own airbag recalls. 

What to look for instead

• 2011–2015: These models generally have fewer issues, with the 2013–2015 models in particular being noted as more reliable. 
• 2018–2022: Models from these years are considered more reliable, especially those with the redesigned exterior. 
• 2020–2022: These are considered among the most reliable years, with the 2020 model year being a good choice. 

This video discusses the best Lexus RX 350 years to buy: 59sThe Miles DrivenYouTube · Dec 18, 2024