Lexus · Known Issues

2015 Lexus RX Problems: 3 Known Issues

2015 model year · 7,800+ owner reports · Updated September 2026

According to Au7o's analysis of 7,800+ owner reports, the 2015 Lexus RX has 3 documented known issues. No issues are rated critical, indicating generally reliable ownership. The most commonly reported issue is Excessive Oil Consumption 2GR Engine with 4,200 owner reports. Across all issues with published estimates, repair costs range from $200 to $4,000. DIY maintenance guides at au7o.io.

Frequently Asked Questions

What are the most common Lexus RX problems?

According to Au7o's analysis of 7,800+ owner reports, the 2015 Lexus RX has 3 documented issues. The most frequently reported are: Excessive Oil Consumption 2GR Engine, Water Pump Premature Failure, AC Evaporator Core Refrigerant Leak. None are rated critical, but regular maintenance is recommended.

Is the Lexus RX reliable?

The 2015 Lexus RX has 3 known issues documented across 7,800+ owner reports. No issues are rated critical, suggesting generally good reliability. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Lexus RX problems?

Repair costs for known Lexus RX issues range from $200 to $4,000, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2007-2017 Lexus RX Excessive Oil Consumption 2GR Engine?

The 3.5L 2GR-FE V6 in the RX350 consumes excessive oil, often requiring a quart every 1,500-3,000 miles. The piston ring design allows oil to bypass into the combustion chamber, and the PCV system contributes to the problem. Toyota acknowledged the issue with a TSB covering pisto… Repairs typically run $200-$4,000. Severity: medium.

What is the 2010-2019 Lexus RX Water Pump Premature Failure?

The water pump on the RX fails prematurely due to internal seal and bearing wear. Coolant weeps from the pump weep hole and the bearing develops play, causing a whining or grinding noise from the front of the engine. Failure rates are highest between 60,000-100,000 miles. Repairs typically run $500-$1,100. Severity: medium.

What is the 2010-2017 Lexus RX AC Evaporator Core Refrigerant Leak?

The AC evaporator core in the RX develops pinhole leaks from internal corrosion, causing slow refrigerant loss. The system gradually loses cooling capacity over weeks or months as the charge leaks through the evaporator. This is an expensive repair because the entire dashboard mu… Repairs typically run $1,200-$2,500. Severity: medium.

2015 Lexus RX Problems: 3 Known Issues

All 3 Known Issues

When Issues Typically Appear

2010-2019 Lexus RX: Water Pump Premature Failure#

Common Symptoms

How to Fix

What you need to fix it

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2010-2017 Lexus RX: AC Evaporator Core Refrigerant Leak#

Common Symptoms

How to Fix

What you need to fix it

Owner tips & cautions

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2007-2017 Lexus RX: Excessive Oil Consumption 2GR Engine#

Common Symptoms

How to Fix

Owner tips & cautions

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Other Lexus Models

Frequently Asked Questions

What are the most common Lexus RX problems?

Is the Lexus RX reliable?

How much does it cost to fix common Lexus RX problems?

What is the 2007-2017 Lexus RX Excessive Oil Consumption 2GR Engine?

What is the 2010-2019 Lexus RX Water Pump Premature Failure?

What is the 2010-2017 Lexus RX AC Evaporator Core Refrigerant Leak?