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Diagnostic trouble code · Ford

P0133 on Ford vehicles The upstream bank 1 oxygen sensor is responding too slowly to be trusted

P0133 is named on 7 Ford model years (2023–2026): 13 manufacturer filings and 0 owner reports in NHTSA’s files, across F-250 Super Duty, F-350 Super Duty, F-450 Super Duty, Explorer.

Powertrain 7 model years 13 manufacturer filings

Which Ford model years name P0133

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2024 Ford F-250 Super DutyBack Over Prevention2—
2024 Ford F-350 Super DutyElectrical System2—
2024 Ford F-450 Super DutyElectrical System2—
2023 Ford F-250 Super DutyBack Over Prevention2—
2023 Ford F-350 Super DutyElectrical System2—
2023 Ford F-450 Super DutyBack Over Prevention2—
2026 Ford ExplorerNot specified1—

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.

Electrical System 5 Power Train 4 Back Over Prevention 3 Not specified 1
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Ford filings that name P0133

Source: NHTSA manufacturer communications

Bulletins and campaigns Ford filed with NHTSA whose summary names P0133. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

What P0133 means

Source: SAE J2012 / OBD-II

The upstream bank 1 oxygen sensor is responding too slowly to be trusted.

A stored code names the test that failed, never the part that caused it. The record above is what Ford and its owners have filed about it; the code’s page across every make has the whole file.

From here

Common questions

Source: NHTSA files and the OBD-II standard

Is P0133 a known problem on Ford vehicles?

It is a documented one: NHTSA's files hold 13 manufacturer filings and 0 owner reports naming P0133 on 7 Ford model years (2023–2026). 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 Ford models does P0133 appear on most?

2024 F-250 Super Duty (2 documents), 2023 F-250 Super Duty (2 documents), 2024 F-350 Super Duty (2 documents).

Does P0133 on a Ford 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.