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Federal filingsHome›Trouble codes› P050D
Diagnostic trouble code

P050D

17 owner reports and 1,598 manufacturer filings across 272 model years from Buick, Cadillac, Chevrolet, Chrysler and others.

Powertrain Generic OBD-II code 1,598 manufacturer filings 17 owner reports

Where P050D shows up

Source: NHTSA manufacturer communications and complaints

Showing the 25 model years where P050D appears most; it is on file for 272 in total.

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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P050D by make

The same record, one make at a time: the model years, bulletins and owner reports that name P050D on that maker’s vehicles.

Chevrolet 129GMC 56Cadillac 44Buick 39

What it gets filed under

Engine 1,315 Equipment 270 Fuel/Propulsion System 12 Electrical System 8 Power Train 7 Wheels 2

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.

The vehicle was towed to the local dealer, where it was diagnosed, and DTC: P0300, P050D, and P0302 were retrieved
2021 Chevrolet Tahoe at 64,572 miles Dec 18, 2025 NHTSA owner report
I immediately took the vehicle to the local mechanic who identified two codes (P0300 and P050D) related to the engine issues
2020 GMC Yukon Nov 25, 2025 NHTSA owner report
The contact declined the repair, and the vehicle was taken to an independent mechanic, where it was diagnosed with codes: P050D, P2099, P219B, and P0300 for the fuel injector
2016 GMC Sierra at 81,000 miles Apr 17, 2023 NHTSA owner report
I have it hooked up to the diagnostics machine and get P050D code as well as one more code (don't remember that one)
2016 Chevrolet Silverado Aug 22, 2022 NHTSA owner report
This is the second time this same exact thing has happened to me same messages popped up so I took it to the dealer and codes p0300 came out and p050D came out
2018 Chevrolet Malibu Apr 29, 2022 NHTSA owner report

1,598 manufacturer filings name P050D. 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.

Photo: Compagnons / Unsplash

Manufacturer filings that name it

Source: NHTSA manufacturer communications

Service bulletins and campaigns whose filed summary names P050D.

What P050D means

Source: SAE J2012 / OBD-II

P050D 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.

From here

Common questions about P050D

Source: NHTSA files and the OBD-II standard

Can I keep driving with P050D 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.