NHTSA recall 25V859000 · Dec 11, 2025

Honda (American Honda Motor Co.): Reduced Brake Function

Product

2016-2020 Acura ILX vehicles

Hazard

Reduced brake function can extend the distance required to stop, increasing the risk of a crash or injury.

What to do

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.

Got a car, truck or motorcycle? The surest check is your 17-character VIN, which is on your registration, insurance card, or the driver-side dashboard. NHTSA's free lookup shows any open recall that hasn't been repaired on that exact vehicle.

Check my VIN on NHTSA.gov

Recall details

Summary: 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
Recall type: Vehicle
Potentially affected: 70,658
Manufacturer campaign number: RN5

Source: National Highway Traffic Safety Administration (NHTSA) notice.

Copied from the agency record without changes. Data as of Oct 14, 2026, 1:15 AM EDT. The agency notice is the final word.

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