C055F
2 owner reports and 135 manufacturer filings across 29 model years from Cadillac, Chevrolet, GMC.
Where C055F shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2026 Cadillac Escalade | Unknown Or Other | 10 | — |
| 2026 GMC Yukon | Unknown Or Other | 10 | — |
| 2025 Cadillac Escalade | Unknown Or Other | 8 | — |
| 2024 Cadillac Escalade | Unknown Or Other | 8 | — |
| 2023 Cadillac Escalade | Unknown Or Other | 8 | — |
| 2022 Cadillac Escalade | Unknown Or Other | 8 | — |
| 2025 GMC Yukon | Unknown Or Other | 8 | — |
| 2024 GMC Yukon | Unknown Or Other | 8 | — |
| 2023 GMC Yukon | Unknown Or Other | 8 | — |
| 2022 GMC Yukon | Unknown Or Other | 8 | — |
| 2026 Chevrolet Silverado | Unknown Or Other | 5 | — |
| 2026 GMC Sierra | Unknown Or Other | 5 | — |
| 2025 Chevrolet Silverado | Unknown Or Other | 4 | — |
| 2024 Chevrolet Silverado | Unknown Or Other | 4 | — |
| 2023 Chevrolet Silverado | Unknown Or Other | 4 | — |
| 2022 Chevrolet Silverado | Unknown Or Other | 4 | — |
| 2025 GMC Sierra | Unknown Or Other | 4 | — |
| 2024 GMC Sierra | Unknown Or Other | 4 | — |
| 2023 GMC Sierra | Unknown Or Other | 4 | — |
| 2022 GMC Sierra | Unknown Or Other | 4 | — |
| 2026 Chevrolet Suburban | Unknown Or Other | 2 | — |
| 2026 Chevrolet Tahoe | Unknown Or Other | 2 | — |
| 2025 Chevrolet Colorado | Service Brakes | — | 1 |
| 2025 Chevrolet Suburban | Unknown Or Other | 1 | — |
| 2024 Chevrolet Suburban | Unknown Or Other | 1 | — |
| 2025 Chevrolet Tahoe | Unknown Or Other | 1 | — |
| 2024 Chevrolet Tahoe | Unknown Or Other | 1 | — |
| 2023 Chevrolet Tahoe | Unknown Or Other | 1 | — |
| 2025 Chevrolet Traverse | Service Brakes, Hydraulic | — | 1 |
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.
What it gets filed under
What owners said
Source: NHTSA complaint databaseOwners’ own words, one per nameplate, scrubbed of anything identifying. These are unverified reports filed with NHTSA — they are what was said, not a finding that it was true.
“6721 found service bulletin for code C055F vehicle needs a master cylinder/booster/ebcm parts ordered� They told me it was safe to drive but I refused to drive given what I found online about this issues
The dealer performed a diagnostic and retrieved DTC: C055F, for the brake master cylinder failure
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names C055F. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.
- PIT6476C2026-06-29 · Unknown Or Other
- This preliminary information communicates an issue with a Service Brake system message and DTC C055F due to a low battery condition. Dealer are to inspect the battery, battery connections and for any aftermarket devices.
- PIT6476B2026-05-14 · Unknown Or Other
- This preliminary information communicates an issue with a Service Brake system message and DTC C055F due to a low battery condition. Dealer are to inspect the battery, battery connections and for any aftermarket devices.
- PIT6476A2026-03-26 · Unknown Or Other
- This preliminary information communicates an issue with a Service Brake system message and DTC C055F due to a low battery condition. Dealer are to inspect the battery, battery connections and for any aftermarket devices.
- PIT64762026-01-26 · Unknown Or Other
- This preliminary information communicates an issue with a Service Brake system message and DTC C055F due to a low battery condition. Dealer are to inspect the battery, battery connections and for any aftermarket devices.
- PIT6450A2025-11-14 · Unknown Or Other
- This preliminary information communicates an issue with a Service Brake system message and DTC C0597 C055F. Dealers are to replace the brake master cylinder.
What C055F means
Source: SAE J2012 / OBD-IIC055F 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 C055F
Source: NHTSA files and the OBD-II standardCan I keep driving with C055F stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light generally means the fault was logged and the vehicle is in a reduced-risk mode; a flashing light means stop soon, because a misfiring engine can destroy a catalytic converter in minutes. 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.