Ford C1034
lock brake system (ABS) module. To correct the condition, follow the technical instructions outlined
Quick answer
For certain 2021–2022 Ford Mustang Mach-E vehicles in the US, DTC C1034 may be stored in the anti-lock brake system (ABS) module along with a “Brake Failure, Service Immediately” instrument-panel message. Ford’s referenced instruction is to follow the technical instructions in SSM 54574.
This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.
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1. What does C1034 mean?
For certain 2021–2022 Ford Mustang Mach-E vehicles in the US, DTC C1034 may be stored in the anti-lock brake system (ABS) module along with a “Brake Failure, Service Immediately” instrument-panel message. Ford’s referenced instruction is to follow the technical instructions in SSM 54574.
2. Technical explanation
Verified evidence identifies C1034 as an ABS-module-related DTC in the cited Ford/NHTSA manufacturer communication. The communication associates C1034 with a “Brake Failure, Service Immediately” message in the instrument panel cluster and may also involve C2007, C2008, U0293, and/or U0100 stored in the ABS module. The supplied evidence does not establish a component-level fault mechanism or a specific repair procedure beyond following the technical instructions outlined in SSM 54574.
3. What system is affected?
Anti-lock brake system (ABS) module; the cited communication also references the instrument panel cluster message.
4. How serious is this code?
Not yet established by verified evidence. However, the verified message text is “Brake Failure, Service Immediately.”
5. Symptoms you may notice
- “Brake Failure, Service Immediately” displayed in the instrument panel cluster.
- C1034 stored in the ABS module.
- C2007, C2008, U0293, and/or U0100 may also be stored in the ABS module.
6. Possible causes
- Not yet established by verified evidence.
7. Can I still drive the vehicle?
Not yet established by verified evidence.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- Arrange for evaluation by a Ford service provider and provide DTC C1034 and the “Brake Failure, Service Immediately” message, if displayed.
- Do not attempt high-voltage or ABS-module repair procedures yourself.
- Follow the technical instructions referenced in Ford SSM 54574 through qualified service personnel.
10. Step-by-step troubleshooting
- Confirm the diagnostic trouble codes stored in the ABS module.
- Document whether the instrument panel displays “Brake Failure, Service Immediately.”
- Check whether C2007, C2008, U0293, and/or U0100 are also stored in the ABS module.
- Use Ford SSM 54574 technical instructions for further diagnosis and correction.
11. When to contact service
Contact a Ford dealer or qualified Ford service provider. The verified manufacturer communication directs technicians to follow the technical instructions outlined in SSM 54574.
12. What the service center may check
- Retrieve and record ABS-module DTCs, including C1034.
- Verify whether the “Brake Failure, Service Immediately” message is present in the instrument panel cluster.
- Assess for accompanying C2007, C2008, U0293, and/or U0100 DTCs.
- Follow the Ford technical instructions in SSM 54574.
13. Possible repair or resolution
- The verified communication states that the condition should be corrected by following the technical instructions outlined in SSM 54574.
- A specific repair, parts replacement, software action, or root cause is not yet established by the supplied verified evidence.
14. Affected vehicles
- Ford Mustang Mach-E · 2021–2022 · US
15. Related TSBs / service bulletins
- Ford SSM 54574, referenced by NHTSA Manufacturer Communication 11028844, published February 12, 2026. It applies in the supplied data to 2021–2022 Ford Mustang Mach-E vehicles in the US and addresses a “Brake Failure, Service Immediately” message with C1034 and/or listed accompanying ABS-module DTCs.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
NHTSA Manufacturer Communication 11028844: Ford SSM 54574. https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2025-2026.zip#nhtsa_id=11028844
- NHTSA: NHTSA Manufacturer Communication 11028844: SSM 54574 · official_tsb
19. Frequently asked questions
What does Ford DTC C1034 mean on a 2021–2022 Mustang Mach-E?
The supplied verified evidence identifies C1034 as a DTC stored in the ABS module in connection with Ford SSM 54574. It may occur with a “Brake Failure, Service Immediately” instrument-panel message. A more specific component-level meaning is not yet established by verified evidence.
Which vehicles are covered by the supplied evidence?
The supplied applicability data identifies US-market 2021–2022 Ford Mustang Mach-E vehicles.
Can C1034 occur with other fault codes?
Yes. The cited manufacturer communication states that C2007, C2008, U0293, and/or U0100 may also be stored in the ABS module.
Is there a verified recall for C1034?
Not yet established by verified evidence.
Is it safe to drive or charge with C1034?
Not yet established by verified evidence. The cited communication references a “Brake Failure, Service Immediately” message and directs use of Ford technical instructions in SSM 54574.