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Diagnostic trouble code

U0001

4 owner reports and 7 manufacturer filings across 8 model years from Chrysler, Ford, Jeep, Kia and others.

NetworkGeneric OBD-II code7 manufacturer filings4 owner reports

Where U0001 shows up

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2017 Jeep RenegadeElectrical System11
2016 Jeep RenegadePower Train2—
2023 Ram 1500Steering2—
2016 Chrysler 200Air Bags—1
2025 Ford MaverickEngine1—
2017 Jeep CherokeePower Train—1
2025 Kia SportageElectrical System—1
2024 Ram 1500Steering1—

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

Electrical System 3Power Train 2Steering 2Air Bags 1Engine 1Electronic Stability Control (Esc) 1
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What owners said

Source: NHTSA complaint database

Owners’ 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.

I had the code read and it was a generic U0001 CAM error (Controller Area Module)
2025 Kia SportageJun 7, 2026NHTSA owner report
Vehicle was put in park, then back in drive and a check engine light came on, the check engine light code was U0001 for a can c bus
2017 Jeep Cherokeeat 108,000 milesOct 22, 2020NHTSA owner report

Manufacturer filings that name it

Source: NHTSA manufacturer communications

Service bulletins and campaigns whose filed summary names U0001. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.

What U0001 means

Source: SAE J2012 / OBD-II

U0001 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 U0001

Source: NHTSA files and the OBD-II standard

Can I keep driving with U0001 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.