NHTSA Campaign Number

25V859000

SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER

Reported to NHTSA: December 11, 2025

Key Takeaways

Recall 25V859000 currently maps to 5 tracked vehicle-year pages across 1 make.
This page summarizes the official defect description, safety consequence, and remedy text published by NHTSA for this campaign.
This is a campaign-level lookup, not a VIN-level clearance result. Use a VIN lookup before assuming your specific vehicle is still open.

Useful Next Steps

Check a VIN for an open recall Read what to do after a recall notice Browse more brakes recalls Open an affected vehicle page

Defect Description

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.

Safety Consequence

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

Remedy

Dealers will replace the brake master cylinder, free of charge. Interim letters notifying owners of the safety risk were mailed February 3, 2026. Additional letters will be sent once the final remedy is available, anticipated May 1, 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.

What This Recall Page Shows

This page summarizes a single NHTSA recall campaign, including the defect description, safety consequence, and manufacturer's remedy. The affected vehicles listed below are the make/model/year combinations tracked in our database — this is not a VIN-specific result. To check whether your individual vehicle is covered by this recall, enter your 17-digit VIN at nhtsa.gov/recalls. Click any vehicle below to view its full safety profile.

VIN recall lookup guide What to do after a recall More brakes recalls

Affected Vehicles (5)

Year	Make	Model
2016	Acura	ILX
2017	Acura	ILX
2018	Acura	ILX
2019	Acura	ILX
2020	Acura	ILX

Browse Affected Vehicles

This recall information is from NHTSA campaign 25V859000. This site is not affiliated with NHTSA. Contact your dealer or call NHTSA's Vehicle Safety Hotline at 1-888-327-4236 for more information.

Data synced from NHTSA on May 4, 2026