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Acura Hydraulic Brake Recalls Involving Pressure Loss and Pedal Problems
Reduced brake function recurs across these Acura notices, but the affected parts differ. MDX appears repeatedly: certain 2017-2019 MDX and 2017-2018 MDX Sport Hybrid vehicles have a rear caliper piston coating issue; certain 2020 MDX vehicles have a brake booster fastener concern; and certain 2023-2025 MDX vehicles have an unsecured brake pedal pivot pin. That pivot pin notice also covers certain 2021-2025 TLX vehicles. Separate notices address a VSA modulator ball valve leak in certain 2023 Integra and RDX vehicles, unexpected ABS activation in certain 2024 ZDX All-Wheel Drive vehicles, and contaminated brake fluid that can deform a master cylinder seal in certain 2016-2020 ILX vehicles.
Warning signs to watch for
- November 1, 2018 MDX brake recall: braking performance may be reduced.
- June 15, 2023 VSA modulator recall: unintended movement with brake hold engaged or an unexpected increase in brake pedal travel.
- June 29, 2023 master cylinder recall: separation can cause loss of brake function; December 11, 2025 ILX recall: reduced brake function can extend stopping distance.
- August 15, 2024 ZDX recall: ABS may activate unexpectedly and release brake pressure, causing loss of braking ability.
- June 12, 2025 brake pedal recall: the pedal may shift out of position and prevent braking as intended.
Can you keep driving? What the notices say
None of these notices carries a stop-driving or park-outside instruction. The November 2018 MDX reduced brake performance notice does not tell owners to stop driving. Neither do the June 2023 Integra and RDX VSA modulator notice or the June 2023 MDX master cylinder separation notice. The August 2024 ZDX ABS notice, June 2025 MDX and TLX brake pedal pivot pin notice, and December 2025 ILX brake fluid contamination notice also do not tell owners to stop driving.
What the free repair involves
Remedies are free: November 2018, bleed brakes; June 15, 2023, replace the VSA modulator; June 29, 2023, inspect and repair the brake booster assembly as necessary; August 2024, update electronic brake control module software over the air or at a dealer; June 2025, inspect and replace the brake pedal assembly as necessary; December 2025, replace the brake master cylinder.
Severity at a glance
| Severity | Recalls |
|---|---|
| high | 6 |
Models affected most
Where owners report service brakes, hydraulic problems most
NHTSA owner complaints filed under service brakes, hydraulic for the Acura models and years in this guide. Complaints are unverified reports and are not limited to the recalled defects.
| Vehicle | Service brakes, hydraulic complaints |
|---|---|
| 2024 Acura ZDX | 22 |
| 2019 Acura ILX | 13 |
| 2024 Acura MDX | 11 |
| 2021 Acura TLX | 10 |
| 2023 Acura MDX | 8 |
| 2025 Acura MDX | 5 |
| 2022 Acura TLX | 3 |
| 2023 Acura Integra | 3 |
Every recall in this group
| Date | Recall | Severity |
|---|---|---|
| Dec 11, 2025 | Acura ILX Brake Fluid Contamination Weakens Braking | high |
| Jun 12, 2025 | Acura, Honda Brake Pedal Pin Can Shift | high |
| Aug 15, 2024 | Acura ZDX Anti-Lock Brakes May Release Pressure | high |
| Jun 29, 2023 | Honda, Acura Models: Brake Master Cylinder May Separate | high |
| Jun 15, 2023 | Acura Integra, RDX and Accord Brake Fluid Leak | high |
| Nov 1, 2018 | Acura and Honda Models Have Reduced Brake Performance | high |
Common questions
Can the Acura ZDX brake recall be repaired over the air?
The August 2024 notice for certain 2024 ZDX All-Wheel Drive vehicles specifies an electronic brake control module software update. It can be delivered over the air or performed by a dealer, free of charge. The defect involves unexpected ABS activation.
Why might a recalled Acura move with brake hold engaged?
The June 15, 2023 notice for certain 2023 Integra and RDX vehicles identifies a leaking ball valve in the VSA modulator. It can cause unintended movement with brake hold engaged or increased brake pedal travel. Dealers replace the modulator free of charge.
Do the Acura MDX and ILX master cylinder recalls have the same repair?
The June 2023 recall for certain 2020 MDX vehicles requires inspecting and repairing the brake booster assembly as necessary. The December 2025 recall for certain 2016-2020 ILX vehicles requires replacing the brake master cylinder. Both notices specify free remedies.
A recall applies only to specific vehicles. Check your 17-character VIN at nhtsa.gov/recalls.