C0020 on Ram vehicles
C0020 is named on 5 Ram model years (2016–2018): 0 manufacturer filings and 41 owner reports in NHTSA’s files, across 2500, 3500.
Which Ram model years name C0020
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2018 Ram 2500 | Service Brakes | — | 29 |
| 2018 Ram 3500 | Service Brakes | — | 5 |
| 2017 Ram 2500 | Service Brakes | — | 5 |
| 2017 Ram 3500 | Service Brakes | — | 1 |
| 2016 Ram 2500 | Service Brakes | — | 1 |
A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.
What Ram owners said
Source: NHTSA complaint databaseOwners’ own words, scrubbed of anything identifying. Unverified reports filed with NHTSA — what was said, not a finding that it was true.
Recurring ABS and traction light warning lights, with trouble code C0020 for the ABS pump control motor
I was told by a mechanic that he scanned the system and pulled Code C0020
What C0020 means
Source: SAE J2012 / OBD-IIC0020 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. The record above is what Ram and its owners have filed about it; the code’s page across every make has the whole file.
Common questions
Source: NHTSA files and the OBD-II standardIs C0020 a known problem on Ram vehicles?
It is a documented one: NHTSA's files hold 0 manufacturer filings and 41 owner reports naming C0020 on 5 Ram model years (2016–2018). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.
Which Ram models does C0020 appear on most?
2018 2500 (29 documents), 2017 2500 (5 documents), 2018 3500 (5 documents).
Does C0020 on a Ram mean it is recalled?
No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.