C0024
0 owner reports and 39 manufacturer filings across 9 model years from Cadillac, Chevrolet, GMC.
Where C0024 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2020 Cadillac CT6 | Service Brakes | 5 | — | Brake pads → |
| 2019 Cadillac CT6 | Service Brakes | 5 | — | Brake pads → |
| 2020 Cadillac XT5 | Service Brakes | 5 | — | Brake pads → |
| 2020 Cadillac XT6 | Service Brakes | 5 | — | Brake pads → |
| 2020 Chevrolet Blazer | Service Brakes | 5 | — | Brake pads → |
| 2020 GMC Acadia | Service Brakes | 5 | — | Brake pads → |
| 2020 Chevrolet Silverado | Service Brakes | 4 | — | Brake pads → |
| 2020 GMC Sierra | Service Brakes | 4 | — | Brake pads → |
| 2019 Cadillac XT5 | 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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C0024 by make
The same record, one make at a time: the model years, bulletins and owner reports that name C0024 on that maker’s vehicles.
What it gets filed under

39 manufacturer filings name C0024. 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 C0024.
- 20NA073 Service bulletin2020-09-22 · Service Brakes
- This technical bulletin provides repair information to correct a customer concern of Loss of Brake Assist, Various Messages Displayed in Driver Information Center (DIC), Brake Pedal Travel and Apply May Feel Different, One or More of the Following DTCs May be Set: P0606 with C0021, C05D2, C0595, C2A3B, C0024, C053D, P25A2.
- 20NA073 Service bulletin2020-05-29 · Service Brakes
- This technical bulletin provides repair information to correct a customer concern of Loss of Brake Assist, Various Messages Displayed in DIC, Brake Pedal Travel and Apply May Feel Different, DTC C0024 Set.
- 20NA073 Service bulletin2020-05-29 · Service Brakes
- This technical bulletin provides repair information to correct a customer concern of Loss of Brake Assist, Various Messages Displayed in DIC, Brake Pedal Travel and Apply May Feel Different, DTC C0024 Set.
- 20NA073 Service bulletin2020-04-16 · Service Brakes
- This technical bulletin provides repair information to correct a customer concern of Loss of Brake Assist, Various Messages Displayed in DIC, Brake Pedal Travel and Apply May Feel Different, DTC C0024 Set.
- 20NA073 Service bulletin2020-03-23 · Forward Collision Avoidance — Dynamic Brake Support/Brake Assist
- This technical bulletin provides repair information to correct a customer concern of Loss of Brake Assist, Various Messages Displayed in DIC, Brake Pedal Travel and Apply May Feel Different, DTC C0024 Set.
What C0024 means
Source: SAE J2012 / OBD-IIC0024 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 C0024
Source: NHTSA files and the OBD-II standardCan I keep driving with C0024 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.