Reliability Comparisonsports · How we score

2015 Lexus RX vs 2018 Lexus RX vs 2020 Lexus RX

Our Recommendation

2020 Lexus RX

Higher AutoScore, low risk, and a stronger overall profile make it the clear pick.

Reliability Side-by-Side

2015

Lexus RX

92/ 100
LOW RISK

Grade A-

A supremely reliable luxury SUV that delivers peace of mind and comfort with minimal common issues.

2018

Lexus RX

92/ 100
LOW RISK

Grade A

A steadfast luxury SUV that champions reliability and comfort, offering an excellent return on investment for years to come.

2020

Lexus RX

Winner
93/ 100
LOW RISK

Grade A

A practically bulletproof luxury SUV, the 2020 RX delivers enduring quality with minimal inherent flaws.

Best For

Best for Reliability

2020 Lexus RX

Score 93/100 vs 92/100

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Cost of Ownership

Line Item2015 Lexus RX2018 Lexus RX2020 Lexus RX★
Annual Maintenance$450-700$400-600$400-600
Moderate Repairs$600-1,500 occasionally (e.g., HVAC actuator, water pump, suspension components)$500-1,500 occasionally$500-1,500 occasionally
MPG (City/Hwy)18 / 2520 / 2720 / 27
MSRP (New)$40,970$43,270$44,150

Major-failure risk and insurance outlook for each vehicle are in their full reliability reports.

Biggest Risks on Each

2015 Lexus RX

  • Engine Oil Leaks

    90,000-150,000 mi

  • HVAC System

    60,000-100,000 mi

  • Suspension Components

    100,000-150,000 mi

2018 Lexus RX

  • Infotainment System

    Any mileage (user experience) mi

  • HVAC Blend Door Actuators

    60,000-100,000 mi

  • Minor Electrical Sensors

    80,000-120,000 mi

2020 Lexus RX

  • Infotainment System

    Any mileage, often from new mi

  • HVAC Blower Motor

    40,000-80,000 mi

  • Suspension Bushings/Components

    70,000-110,000 mi

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Editorial Take

The Lexus RX is a cornerstone of the luxury crossover SUV segment, renowned for its unwavering reliability, comfortable ride, and plush interiors. This comparison examines three distinct model years – the 2015, representing the refined third generation, and the 2018 and 2020 models, both part of the bolder fourth generation. Buyers often compare these years to gauge the evolution of design, technology, and performance against varying budget considerations. Key decision factors typically include the desire for the latest safety features, infotainment technology, cargo capacity, and of course, the initial purchase price and long-term running costs. HEAD-TO-

Reliability & Common Issues

Lexus is renowned for its reliability, and the RX line exemplifies this reputation. Issues are generally minor and infrequent across all these model years. 2015 Lexus RX (Third Generation): 1. Infotainment Remote Touch Controller: Some owners report the joystick-like controller becoming sticky or less precise over time, especially in high-humidity climates or with heavy use. This is more of a minor annoyance than a system failure. 2. Water Pump Leaks: While not widespread, some higher-mileage 3.5-liter V6 engines (shared with other Toyota/Lexus models) can develop minor water pump leaks, typically requiring replacement between 80,000 and 120,000 miles. 3. Power Liftgate Actuator: A small percentage of owners have reported issues with the power liftgate occasionally failing to open or close smoothly, often due to a faulty actuator or sensor, usually a fixable issue. 2018 Lexus RX (Fourth Generation): 1. Infotainment Remote Touch Interface Usability: While reliable, the trackpad-style Remote Touch interface introduced in the fourth generation can be distracting and challenging to use for some drivers, requiring more attention than a traditional touchscreen or rotary knob. This is a design criticism rather than a mechanical failure. 2. Minor Interior Rattles: A few owners have reported occasional minor rattles or squeaks from the dashboard or panoramic sunroof area, particularly over rough roads. These are generally isolated incidents, uncharacteristic for Lexus's typical build quality. 3. Front Brake Pad Wear: There have been isolated reports of faster-than-average front brake pad wear, particularly on AWD models or those with a heavier driving style. This is usually manageable with proper maintenance and component selection. 2020 Lexus RX (Fourth Generation Facelift): 1. Infotainment Touchscreen Lag: While the 2020 model introduced much-desired touchscreen functionality alongside the Remote Touch pad, some users noted occasional lag or unresponsiveness, particularly with the 12.3-inch optional display, compared to newer, more advanced infotainment systems. 2. Minor Software Glitches: As is common with more technologically advanced vehicles, early 2020 models saw sporadic reports of minor software bugs affecting features like Apple CarPlay/Android Auto connectivity or specific functions of the Lexus Safety System+ 2.0. Most of these were addressed via subsequent software updates. 3. Seat Comfort (Specific Trims): While overall seat comfort is excellent, a small number of drivers, particularly those with specific body types, found the lumbar support or the more aggressively bolstered F Sport seats less comfortable on very long drives compared to the standard seats.

Value & Cost of Ownership

The Lexus RX is a smart choice for long-term ownership, known for its strong resale value and reasonable maintenance costs across all generations. Purchase Prices (Used, estimated current market value): 2015 Lexus RX 350: Currently ranges from approximately $15,000 to $22,000, depending on mileage, condition, and options. 2018 Lexus RX 350: Typically found between $25,000 and $32,000. 2020 Lexus RX 350: Generally priced from $32,000 to $40,000. *Hybrid models will command a premium of $3,000 - $6,000 above their gasoline counterparts.* Insurance Costs: Insurance for all Lexus RX models is generally moderate to good, benefiting from the brand's reputation for safety and reliability. The 2020 model, with its higher initial value and more advanced safety tech, might incur slightly higher premiums than the older models, but not significantly so. Maintenance Costs: All three RX models boast low maintenance costs relative to their luxury segment peers. Lexus's strong ties to Toyota mean parts are readily available and often less expensive than European luxury rivals. Routine maintenance, such as oil changes and tire rotations, is straightforward and affordable. Major component failures are rare across all these years, contributing to excellent long-term cost-effectiveness. Resale Value: The Lexus RX is consistently a top performer in retaining its value. 2015 Lexus RX: Holds its value very well for its age, demonstrating its enduring appeal and reliability. 2018 Lexus RX: Offers excellent resale value, benefiting from its relatively modern design and standard safety suite. 2020 Lexus RX: Among the best in its class for resale value, thanks to its updated technology, advanced safety features, and timeless reliability.

Editorial Verdict

Choosing between these three excellent Lexus RX models depends largely on your priorities and budget. Best for families: For families primarily needing two spacious rows and maximum cargo capacity for luggage or gear, the 2015 Lexus RX is surprisingly competitive due to its larger cargo area (40.0 cu ft vs 18.4 cu ft in the 4th gen 2-row models). If a third row is occasionally needed and budget is a concern, the 2018 RX 350L offers the flexibility, but with a notably cramped third row. However, for families prioritizing the latest standard safety features and seamless smartphone integration, the 2020 Lexus RX is the clear winner, thanks to LSS+ 2.0 and standard Apple CarPlay/Android Auto. Best for commuters: All RX models are fantastic commuters due to their quiet cabins and smooth rides. However, the RX 450h hybrid variants of any year offer superior fuel economy, making them ideal for daily commutes. For those prioritizing the latest safety tech and infotainment to ease the commute, the 2020 Lexus RX, with its advanced LSS+ 2.0 and touchscreen infotainment, stands out. Best for enthusiasts: The Lexus RX is not typically considered an enthusiast vehicle in the traditional sense. However, for those who appreciate a more composed and engaging drive within the luxury SUV segment, the 2018 and 2020 RX F Sport models offer a slightly firmer suspension, sharper steering, and a more dynamic aesthetic, making them the best choice among these options. The 2015 RX offers a softer, more comfort-focused experience. Best value overall: The 2015 Lexus RX represents the best value for an entry into luxury SUV ownership. It provides excellent Lexus reliability, comfort, and interior quality at a significantly lower purchase price. You get a proven, comfortable, and practical vehicle without many of the latest tech features. If you can stretch your budget slightly, the 2018 Lexus RX hits a sweet spot, offering the redesigned fourth-generation styling, standard comprehensive safety features, and a more engaging driving experience, while having absorbed a significant portion of its depreciation. The 2020 RX is the most advanced, but its higher used price means you are paying a premium for the added technology and updated safety suite.

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