Recall 18V777 affects 64,785 2016-2019 Honda Hr-V, Odyssey, Mdx, and Mdx Sport Hybrid vehicles for reduced braking. Repair is free at Honda dealers.
Honda is recalling 64,785 2016-2019 Hr-V, Odyssey, Mdx, and Mdx Sport Hybrid vehicles because insufficient coating on rear brake caliper pistons can let gas pockets form and reduce brake performance. Reduced braking performance increases crash risk, and Honda dealers will complete the recall repair free of charge.
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What's wrong?
The rear brake caliper piston is part of the disc brake caliper on affected 2016-2019 Honda Hr-V, Odyssey, Mdx, and Mdx Sport Hybrid vehicles. When you press the brake pedal, the piston pushes the brake pad against the rotor so the wheel slows. The brake system depends on that piston moving smoothly and holding hydraulic pressure.
Honda recalled these vehicles because the rear brake caliper pistons were built with an insufficient coating. During surface plating, a sub-supplier trapped high levels of hydrogen on the piston, and the tempering step that removes excess hydrogen was not completed to specification. That defect allows gas pockets to form in the brake system, which reduces brake performance.
There is no warning sign before failure. Treat any change in brake feel, longer stopping distance, or unusual brake behavior as a reason to stop driving and contact a Honda dealer.
Who's affected?
Spans four model lines across the 2016, 2017, 2018, and 2019 model years, all tied to the hydraulic brake system.
| 2016 Honda Hr-V | hydraulic brake system |
|---|---|
| 2018 Honda Odyssey | hydraulic brake system |
| 2018 Honda Hr-V | hydraulic brake system |
| 2019 Honda Odyssey | hydraulic brake system |
| 2019 Honda Hr-V | hydraulic brake system |
| 2018 Acura Mdx | hydraulic brake system |
| 2019 Acura Mdx | hydraulic brake system |
| 2017 Acura Mdx Sport Hybrid | hydraulic brake system |
| 2018 Acura Mdx Sport Hybrid | hydraulic brake system |
| 2017 Acura Mdx | hydraulic brake system |
| Units affected | 64,785 |
| Field incidents | NHTSA has logged no field incidents to date. |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific vehicle is included.
What's the safety risk?
Reduced braking performance increases crash risk because the vehicle has less braking ability when you need it. Schedule the recall repair soon, and ask the dealer whether the vehicle is safe to drive until your appointment. Repair is free at any franchised Honda dealer.
What should I do?
- Check your VIN to confirm your 2016-2019 Honda Hr-V, Odyssey, Mdx, or Mdx Sport Hybrid is included in this recall.
- Contact a franchised Honda or Acura dealer to schedule the free brake bleed that addresses reduced braking performance from gas pockets in the rear calipers.
- Bring the recall notice if Honda has mailed one. If not, reference recall number 18V777 when you call.
- Drive cautiously until the repair is complete. Leave extra following distance and avoid hard braking.
What happens at the repair
At the dealer, a Honda technician bleeds the brake system to clear trapped gas pockets that reduce brake performance. The recall repair is free, and parts and labor are covered at a Honda or Acura dealer. Reimbursement for repairs before the owner notice is handled through the new vehicle warranty, not through a separate reimbursement program, because Honda says the affected vehicles would have received the repair at no owner cost under warranty. Ask the service desk how that warranty coverage applies if you have prior repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| November 1, 2018 | NHTSA published the recall |
|---|---|
| November 2, 2018 | Dealer notification began |
| November 2, 2018 | Dealer notification ended |
| December 11, 2018 | Owner notification mailed |
| December 17, 2018 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| December 17, 2018 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 18V777?
Recall 18V777 covers 64,785 2016-2019 Honda Hr-V, Odyssey, Mdx, and Mdx Sport Hybrid vehicles with rear brake caliper pistons that have insufficient coating. Gas pockets can form in the brake system and reduce braking performance. Honda dealers will bleed the brakes for free.
What should I do if my 2016-2019 Honda Hr-V, Odyssey, Mdx, or Mdx Sport Hybrid is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 18V777. If it is, call a franchised Honda dealer and ask to schedule the free brake-bleeding repair. Reference recall number 18V777 and Honda recall numbers C31 and L30 when you call.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Honda's remedy says dealers will bleed the brakes free of charge. Parts and labor are covered at a franchised Honda dealer.
What is the safety risk?
The safety risk is reduced braking performance. NHTSA says that reduced braking performance increases crash risk, so treat this as a brake-system safety recall. If your VIN is included, schedule the free dealer repair and ask the service desk what to do if the brakes feel weak before your appointment.
When did Honda start this recall repair?
Honda began this recall on December 11, 2018. Because the repair is available, owners with an included VIN can contact a franchised Honda dealer now to schedule the free brake-bleeding service. Honda customer service is also listed at 1-888-234-2138 for this recall.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/18V777000 |
|---|---|
| Honda customer service | 1-888-234-2138 |
| NHTSA recall # | 18V777 |
| NHTSA recall # (full) | 18V777000 |
Source documents
-
Download Misc. Document (PDF) - Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Quarterly Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 25, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →