C0049
0 owner reports and 15 manufacturer filings across 7 model years from Ford.
Where C0049 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2024 Ford Bronco | Service Brakes | 3 | — | Brake pads → |
| 2023 Ford Bronco | Service Brakes | 3 | — | Brake pads → |
| 2022 Ford Bronco | Service Brakes | 3 | — | Brake pads → |
| 2021 Ford Bronco | Service Brakes | 3 | — | Brake pads → |
| 2025 Ford Bronco | Not specified | 1 | — | |
| 2026 Ford Explorer | Service Brakes | 1 | — | Brake pads → |
| 2024 Ford Mustang | Service Brakes | 1 | — | Brake pads → |
A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.
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C0049 by make
The same record, one make at a time: the model years, bulletins and owner reports that name C0049 on that maker’s vehicles.
What it gets filed under

15 manufacturer filings name C0049. Start with what the maker wrote down.
A code names the test that failed, not the part. A bulletin that names it is often a diagnosis someone has already written down — quote its number at the service desk.
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names C0049.
- SSM 55240 Service bulletin2026-10-12 · Unknown Or Other
- Some 2021-2024 Bronco vehicles may exhibit an illuminated red brake warning indicator with diagnostic trouble code (DTC) C0049:01 stored in the anti-lock brake system (ABS) module. This may be due to pin fitment at the brake fluid level sensor connector. To resolve this concern, replace the brake fluid reservoir and replace the brake fluid level sensor electrical connector C1052 with service pigta
- SSM 54682 Service bulletin2026-03-24 · Service Brakes
- Some 2026 Explorer vehicles equipped with a 2.3L engine and built on 22-Dec-2025 and through 02-Feb-2026 may exhibit an illuminated anti-lock brake system (ABS) warning lamp or "Check Brake System" warning message with diagnostic trouble code (DTC) C0049:01 and/or C0049:0A stored in the ABS module. This may be due to a pin fit concern at connector C124 located on the brake fluid reservoir.
- SSM 54431 Service bulletin2025-12-06 · Service Brakes
- Some 2021-2024 Bronco vehicles may exhibit an illuminated red brake warning indicator with diagnostic trouble code (DTC) C0049:01 stored in the anti-lock brake system (ABS) module. Replace the brake fluid reservoir and the brake fluid level sensor electrical connector. Do not disconnect the brake fluid level sensor electrical connector, cut the connector 3-4 inches (75-100 mm) from the connector e
- SSM 54362 Service bulletin2025-11-10 · Unknown Or Other
- Some 2021-2025 Bronco vehicles may exhibit an illuminated red brake warning indicator with diagnostic trouble code (DTC) C0049:01 stored in the anti-lock brake system (ABS) module. Replace the brake fluid reservoir and the brake fluid level sensor electrical connector. Do not disconnect the brake fluid level sensor electrical connector, cut the connector 3-4 inches (75-100 mm) from the connector e
- SSM 52002 Service bulletin2023-10-20 · Service Brakes, Air — Antilock — Control Unit/Module
- Some 2024 Mustang vehicles built on or before 30-June-2023 may exhibit a Low Brake Fluid message displayed on the instrument panel cluster (IPC) without low brake fluid in the reservoir and DTC C0049:0A stored in the anti-lock brake system (ABS) module. This may be due to the current software of the ABS module. To correct the condition, reprogram the ABS module using the latest software level of t
What C0049 means
Source: SAE J2012 / OBD-IIC0049 sits in the generic range of the OBD-II standard, so it means the same thing on every vehicle sold in the United States — but WhichTrim does not carry a definition for it and will not invent one. What is on this page is the record: who named it and on what.
A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.
Common questions about C0049
Source: NHTSA files and the OBD-II standardCan I keep driving with C0049 stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light means a fault was logged and the car should be checked soon; a flashing light means a severe misfire — slow down and get it seen as soon as possible, because severe misfire can quickly damage the catalytic converter. The safe read of this page is the mileage and the components, not permission.
Does a code mean the car is recalled?
No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.
Why do the counts here differ from other sites?
Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.
Will clearing the code fix it?
Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.