Recall 24V777 affects 50 2021 Ford Mustang Mach E vehicles for brake-assist loss after an ABS update. Repair is free at any franchised Ford dealer.
Ford is recalling 50 2021 Mustang Mach E vehicles under recall 24V777 because an OTA update to the ABS can remove power brake assist, ABS, stability control, traction control, and driver assistance features. Loss of brake assist can extend stopping distance, and disabled ABS or stability control can result in loss of vehicle control; Ford dealers will complete the recall repair free of charge.
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What's wrong?
The ABS module calibration on the 2021 Ford Mustang Mach E is software inside the anti-lock braking system control module. That module helps manage wheel slip during braking, supports traction control and electronic stability control, and works with power brake assist and driver assistance features. The calibration file tells the module how to operate for that vehicle's stored configuration.
On affected vehicles, Ford sent an over-the-air software update with an ABS calibration file that did not match the configuration already stored in the ABS module. When the vehicle starts with the mismatched file, the module is not using the correct software for that vehicle. That mismatch can disable power brake assist, anti-lock braking, electronic stability control, traction control, and related driver assistance features.
Owners should see several ABS-related warning lamps and text messages in the instrument cluster at startup. Those warnings are the sign that the braking control software is not matching the vehicle configuration.
Who's affected?
| 2021 Ford Mustang Mach E | hydraulic brake system |
|---|---|
| Units affected | 50 |
| Field incidents | NHTSA has logged no field incidents to date. |
Not every 2021 Ford Mustang Mach E is on the list. Check your VIN to confirm whether your specific crossover is included.
What's the safety risk?
Loss of power brake assist can lengthen stopping distance. Disabled antilock brakes or stability control can also lead to loss of vehicle control and increase crash risk. Watch for ABS warning lamps or startup messages, then schedule the dealer repair soon. Repair is free at any franchised Ford dealer.
What should I do?
- Check your VIN to confirm your 2021 Ford Mustang Mach E is included in this recall.
- Contact a franchised Ford dealer to schedule the free ABS calibration update that restores the braking, stability control, traction control, and driver assistance functions affected by this recall.
- Bring the recall notice if Ford mailed one. If not, reference recall number 24V777 when you call.
- Drive cautiously until the ABS calibration update is complete. Leave extra following distance because reduced power brake assist increases stopping distance.
What happens at the repair
At the dealer, a Ford technician updates the ABS calibration software on the affected 2021 Mustang Mach E. The dealer update is free under the recall. If you already paid for this ABS calibration remedy before the owner notification, Ford's general reimbursement plan covers documented remedy costs paid by vehicle owners. Bring the repair paperwork to the service desk or contact Ford customer service for the claim path.
| Reimbursement | Reimbursement available |
|---|
Timeline
| October 18, 2024 | NHTSA published the recall |
|---|---|
| October 21, 2024 | Dealer notification began |
| October 21, 2024 | Dealer notification ended |
| November 4, 2024 | Interim owner notification (was planned for this date) |
| November 5, 2024 | Owner notification mailed |
Frequently asked questions
What is recall 24V777?
Recall 24V777 covers 50 2021 Ford Mustang Mach E vehicles after an over-the-air ABS update affected braking and stability systems. Ford dealers will update the ABS calibration for free, and Ford identifies this recall as 24S65.
What should I do if my 2021 Ford Mustang Mach E is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 24V777. If it is, contact a franchised Ford dealer to schedule the free ABS calibration update. Reference Ford recall number 24S65 when you call.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Ford's remedy says dealers will update the ABS calibration free of charge. Use a franchised Ford dealer for the recall work.
What is the safety risk in recall 24V777?
The safety risk is longer stopping distance or loss of vehicle control. Ford reported that the OTA update affected power brake assist, ABS, Electronic Stability Control, Traction Control, and driver assistance features, which can increase crash risk.
What if I bought my Mustang Mach E used?
The free recall repair still applies. Recall eligibility follows the VIN, not the first owner. Check your VIN, then call a franchised Ford dealer and reference recall 24V777 or Ford recall number 24S65.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/24V777000 |
|---|---|
| Ford customer service | 1-866-436-7332 |
| NHTSA recall # | 24V777 |
| NHTSA recall # (full) | 24V777000 |
Source documents
-
Download Quarterly Report (PDF) - Download Recall Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Recall Acknowledgement (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →