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Honda (American Honda Motor Co.): Service Brakes, Hydraulic:Foundation Components:Master Cylinder (2016 ACURA ILX, 2017 ACURA ILX, 2018 ACURA ILX…)

Vehicles & EquipmentSource: NHTSA · Date: 2025-12-11

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The text below is copied from the official NHTSA record. If anything differs, the official notice is correct.

Company / brand
Honda (American Honda Motor Co.)
Product
2016 ACURA ILX; 2017 ACURA ILX; 2018 ACURA ILX; 2019 ACURA ILX; 2020 ACURA ILX
Reason / hazard
Reduced brake function can extend the distance required to stop, increasing the risk of a crash or injury.
What to do (remedy)
Dealers will replace the brake master cylinder, free of charge. Owner letters were mailed May 4, 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's number for this recall is RN5. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning December 17, 2025. The information in your report suggests that Honda (American Honda Motor Co.) may have been aware of this issue more than five business days before filing a report with NHTSA. Please be reminded that under Federal law, this agency is to be notified of all safety defect and/or noncompliance decisions within five business days. 49 CFR 573.6 Significant civil penalties can be assessed for this violation.
Distribution / sold at
Potentially affected: 70658
Defect
Honda (American Honda Motor Co.) is recalling certain 2016-2020 Acura ILX vehicles. Contaminated brake fluid may cause a seal inside the brake master cylinder to deform, which can cause an internal brake fluid leak and reduce brake function.
Component
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER
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