Hydraulic Brake System Issues

Complaints related to the hydraulic brake system, including the ABS, indicate potential issues with fluid leaks, pump failures, or sensor malfunctions. Regular inspection of the entire system is advised. Estimated repair cost: $300 - $1000.

Forward Collision Avoidance System Malfunction

Issues with the forward collision avoidance system have been reported, often linked to sensor calibration or module faults. These can sometimes be related to underlying brake system warnings. Estimated repair cost: $500 - $1500.

2015 Lexus LS Maintenance guide

Name: Maintenance dataset for 2015 Lexus LS
Creator: Carfocal

v1.0Updated May 30, 2026Ryan Davis4 Sources Analyzed

MAINTENANCE SUMMARY

The 2015 Lexus LS, while generally reliable, presents a notable concern regarding its braking system, specifically the brake booster and actuator. These components can fail at higher mileages, leading to reduced braking performance and illuminated ABS and Pre-Collision System warning lights.

View Critical Issue: Brake Booster and Actuator Failure

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Reliability Score

Est. Annual Maintenance Cost

$500 - $800

TSBs & Recalls

2 TSBs | 0 Recalls

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Key Takeaways

Brake System Integrity: The most significant maintenance concern for the 2015 LS involves the brake booster and actuator. Failures can compromise braking performance, necessitating vigilant inspection.
Preventative Maintenance: Adhering to the recommended service schedule, especially for synthetic oil changes and brake fluid flushes, is crucial.

3 more takeaways unlock below

Critical service intervals

Common failure analysis

Symptoms and prevention guidance