Recall 25V859000: 2016–2020 Acura ILX

Updated from NHTSA data · How we count

Report date
Dec 11, 2025
Vehicles affected
70,658
Models
1
Initiated by
ODI

The problem

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.

The risk

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

The fix

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.

Affected vehicles

Details

NHTSA campaign
25V859000
Manufacturer campaign
RN5
Manufacturer
Honda (American Honda Motor Co.)
Owner letters
May 1, 2026
Components
Service brakes, hydraulic:foundation components:master cylinder (Brakes)

Recall repairs are free at authorized dealers. To see if your vehicle is included, enter your VIN at NHTSA.gov or call the manufacturer.

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. Methodology