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Diagnostic trouble code · Chevrolet

P128E on Chevrolet vehicles

P128E is named on 10 Chevrolet model years (2016–2018): 29 manufacturer filings and 0 owner reports in NHTSA’s files, across Express, Silverado 2500HD, Cruze, Equinox, Colorado.

Powertrain 10 model years 29 manufacturer filings

Which Chevrolet model years name P128E

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2016 Chevrolet ExpressFuel/Propulsion System5—
2016 Chevrolet Silverado 2500HDFuel/Propulsion System4—
2018 Chevrolet CruzeEngine3—
2018 Chevrolet EquinoxFuel/Propulsion System3—
2017 Chevrolet CruzeFuel/Propulsion System3—
2017 Chevrolet ExpressEngine3—
2016 Chevrolet CruzeFuel/Propulsion System3—
2018 Chevrolet ColoradoFuel/Propulsion System2—
2017 Chevrolet ColoradoEngine2—
2018 Chevrolet ExpressEngine1—

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.

Fuel/Propulsion System 17 Engine 12
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Chevrolet filings that name P128E

Source: NHTSA manufacturer communications

Bulletins and campaigns Chevrolet filed with NHTSA whose summary names P128E. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

What P128E means

Source: SAE J2012 / OBD-II

P128E is a manufacturer-specific code: the second character is a 1, which under the OBD-II standard hands the definition to whoever built the vehicle. The same code can mean one thing on a Ford and something unrelated on a Hyundai. Any site that prints a single definition for it is guessing.

A stored code names the test that failed, never the part that caused it. The record above is what Chevrolet 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 P128E a known problem on Chevrolet vehicles?

It is a documented one: NHTSA's files hold 29 manufacturer filings and 0 owner reports naming P128E on 10 Chevrolet 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 Chevrolet models does P128E appear on most?

2016 Express (5 documents), 2016 Silverado 2500HD (4 documents), 2018 Cruze (3 documents).

Does P128E on a Chevrolet 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.