Recall 18V621 covers 2017-2018 Mitsubishi Outlander, Outlander Sport, Eclipse Cross, and Outlander PHEV with incorrect brake ECU software. Free dealer update.
Mitsubishi is recalling 58,916 certain 2017-2018 Outlander, Outlander Sport, Eclipse Cross, and Outlander PHEV vehicles because incorrect hydraulic unit ECU software can keep safety systems from stepping in when needed. If automatic emergency braking, ABS, stability control, or brake auto hold fails to work as intended, crash risk increases; Mitsubishi dealers will update the software free of charge.
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What's wrong?
The hydraulic unit electronic control unit on these 2017-2018 Mitsubishi Outlander, Outlander Sport, Eclipse Cross, and Outlander PHEV vehicles is brake-control software. It helps manage systems that depend on brake pressure and wheel-speed control, including automatic emergency braking, Anti-lock Braking, Electronic Stability Control, Adaptive Cruise Control, and Brake Auto Hold.
The problem is in the software loaded into that unit. When the hydraulic unit pump motor runs, the incorrect software allows electrical noise inside the unit, and that noise can reset the control unit. A reset interrupts the system at the wrong moment, so a driver-assist or braking safety function does not step in when it is being used.
The filing does not give owners a steady warning pattern to watch for. There is no warning sign before failure, so an included vehicle can feel normal until one of those systems fails to intervene.
Who's affected?
Spans four Mitsubishi SUV lines across the 2017 and 2018 model years, all tied to the same software and vehicle-control systems.
| 2018 Mitsubishi Outlander | Adaptive cruise control |
|---|---|
| 2018 Mitsubishi Outlander | Electronic stability control (esc) |
| 2018 Mitsubishi Outlander | electrical system software |
| 2018 Mitsubishi Outlander | hydraulic brake system |
| 2017 Mitsubishi Outlander | Adaptive cruise control |
| 2017 Mitsubishi Outlander | Electronic stability control (esc) |
| 2017 Mitsubishi Outlander | electrical system software |
| 2017 Mitsubishi Outlander | hydraulic brake system |
| 2018 Mitsubishi Outlander Sport | Adaptive cruise control |
| 2018 Mitsubishi Outlander Sport | Electronic stability control (esc) |
| 2018 Mitsubishi Outlander Sport | electrical system software |
| 2018 Mitsubishi Outlander Sport | hydraulic brake system |
| 2018 Mitsubishi Eclipse Cross | Adaptive cruise control |
| 2018 Mitsubishi Eclipse Cross | Electronic stability control (esc) |
| 2018 Mitsubishi Eclipse Cross | electrical system software |
| 2018 Mitsubishi Eclipse Cross | hydraulic brake system |
| 2018 Mitsubishi Outlander PHEV | Adaptive cruise control |
| 2018 Mitsubishi Outlander PHEV | Electronic stability control (esc) |
| 2018 Mitsubishi Outlander PHEV | electrical system software |
| 2018 Mitsubishi Outlander PHEV | hydraulic brake system |
| Units affected | 58,916 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not confirm inclusion. Check your VIN to confirm whether your specific SUV is included.
What's the safety risk?
When the safety systems do not work as intended, the driver loses protection expected when those systems are needed, which increases the risk of a crash. Drive with caution and schedule the software update promptly. Repair is free at any franchised Mitsubishi dealer.
What should I do?
- Check your VIN to confirm your 2017-2018 Mitsubishi Outlander, or 2018 Mitsubishi Outlander Sport, Eclipse Cross, or Outlander PHEV is included in this recall.
- Contact a franchised Mitsubishi dealer to schedule the free Hydraulic Unit-ECU software update that fixes the safety-system control issue.
- Bring the recall notice if Mitsubishi sent one. If not, reference recall number 18V621 when you call.
- Call Mitsubishi customer service at 1-888-648-7820 with questions about the repair or dealer scheduling.
- Drive cautiously until the repair is complete. Leave extra following distance and do not rely only on automatic emergency braking, ABS, ESC, or Brake Auto Hold.
What happens at the repair
At the dealer, a Mitsubishi technician updates the Hydraulic Unit ECU software so the braking and stability control systems use the correct control logic. The software update is free under the recall, with parts and labor covered. If you already paid out of pocket for a repair tied to this recall, contact the Mitsubishi Customer Relations Department for reimbursement consideration, as directed in the owner notification letter. Keep any repair invoice or payment documentation available when you contact Mitsubishi.
| Reimbursement | Reimbursement available |
|---|
Timeline
| September 14, 2018 | NHTSA published the recall |
|---|---|
| October 2, 2018 | Dealer notification began |
| October 2, 2018 | Dealer notification ended |
| October 16, 2018 | Owner notification mailed |
| October 16, 2018 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| October 16, 2018 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 18V621?
Recall 18V621 covers 58,916 Mitsubishi vehicles with Hydraulic Unit-ECU software that can stop safety systems from intervening when needed. The affected systems include automatic emergency braking, ABS, ESC, adaptive cruise control, electric parking brake, and Brake Auto Hold. Mitsubishi dealers update the software for free.
What should I do if my 2017-2018 Mitsubishi Outlander, Outlander Sport, Eclipse Cross, or Outlander PHEV is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 18V621. If it is, contact a franchised Mitsubishi dealer and ask for the Hydraulic Unit-ECU software update under recall SR-18-008. Reference recall 18V621 when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost. Mitsubishi dealers will update the Hydraulic Unit-ECU software free of charge, including parts and labor for the recall repair.
What is the safety risk?
The safety risk is that affected systems do not function as intended, increasing crash risk under recall 18V621. The software issue involves systems drivers rely on during braking, stability control, adaptive cruise control, and parking-brake use. Confirm your VIN, then schedule the free dealer software update.
What if I bought this Mitsubishi used?
The free recall repair still applies. Recall coverage follows the vehicle, not the first owner. Check your VIN to confirm whether your specific Mitsubishi is included, then contact a franchised Mitsubishi dealer with recall 18V621 or Mitsubishi recall number SR-18-008.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/18V621000 |
|---|---|
| Mitsubishi customer service | 1-888-648-7820 |
| NHTSA recall # | 18V621 |
| NHTSA recall # (full) | 18V621000 |
Source documents
-
Download Recall Document (PDF) (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 →