Acura recall: Service brakes, hydraulic
What is wrong
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.
What could happen
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.
Vehicles covered
- Acura Ilx 2016–2020
Facts
- NHTSA recall number
- 25V859000
- Type
- Vehicle
- Filed by
- Honda (American Honda Motor Co.)
- Reported to NHTSA
- Dec 11, 2025
- Owners notified
- May 1, 2026
- Vehicles or items affected
- 70,658
- Started by
- NHTSA investigation
- Built
- –
- Part
- Service brakes, hydraulic › Foundation components › Master cylinder
- Maker's own recall number
- RN5
Other recalls for the same vehicles
- Acura / Honda recall: Fuel system, gasoline Dec 18, 2023
- Acura / Honda recall: Fuel system, gasoline Mar 25, 2021
- Acura / Honda recall: Power train Dec 10, 2020
- Acura / Honda recall: Air bags Jun 27, 2019
- Acura recall: Power train Jun 6, 2019
- Acura / Honda recall: Air bags Mar 6, 2019
To check one car, enter its 17-character VIN on the official NHTSA page: a recall may cover only some vehicles of a model year.
Recall data: National Highway Traffic Safety Administration (NHTSA). Nebula is not affiliated with or endorsed by NHTSA.