P050D
17 owner reports and 1,598 manufacturer filings across 272 model years from Buick, Cadillac, Chevrolet, Chrysler and others.
Where P050D shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2018 Cadillac Escalade | Engine | 16 | — | |
| 2016 Cadillac Escalade | Engine | 16 | — | |
| 2017 Chevrolet Volt | Engine | 15 | — | |
| 2016 Chevrolet Volt | Engine | 15 | — | |
| 2017 Chevrolet Spark | Engine | 14 | — | |
| 2016 Chevrolet Spark | Engine | 14 | — | |
| 2017 Buick Encore | Engine | 13 | — | |
| 2016 Buick Encore | Engine | 13 | — | |
| 2017 Chevrolet Cruze | Engine | 13 | — | |
| 2016 Chevrolet Cruze | Engine | 13 | — | |
| 2018 Chevrolet Equinox | Engine | 13 | — | |
| 2017 Chevrolet Malibu | Engine | 13 | — | |
| 2016 Chevrolet Malibu | Engine | 13 | — | |
| 2018 Chevrolet Malibu | Engine | 11 | 1 | |
| 2018 GMC Yukon | Engine | 12 | — | |
| 2017 GMC Yukon | Engine | 12 | — | |
| 2016 GMC Yukon | Engine | 12 | — | |
| 2018 Buick Encore | Engine | 11 | — | |
| 2018 Chevrolet Cruze | Engine | 11 | — | |
| 2016 Chevrolet Express | Engine | 11 | — | |
| 2019 Chevrolet Silverado | Engine | 11 | — | |
| 2018 Chevrolet Spark | Engine | 11 | — | |
| 2018 Chevrolet Volt | Engine | 11 | — | |
| 2018 GMC Terrain | Engine | 11 | — | |
| 2019 Cadillac Escalade | Engine | 10 | — |
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.
What it gets filed under
What owners said
Source: NHTSA complaint databaseOwners’ 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
I immediately took the vehicle to the local mechanic who identified two codes (P0300 and P050D) related to the engine issues
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
I have it hooked up to the diagnostics machine and get P050D code as well as one more code (don't remember that one)
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

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.
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P050D.
- 24-NA-244 Service bulletin2025-04-30 · Electrical System
- This bulletin provides a procedure to program the PCM to latest software to correct a condition of cold start rough idle w/DTC P050D.
- PIP5947C Service bulletin2024-12-05 · Engine
- This Preliminary information communicates to the dealers information related to potential failed engine camshaft cover causing excessive engine oil consumption, blue smoke from the exhaust system at low mileage. Can also possibly cause a misfire or idle surge and may or may not set history or current codes P0300 P050D P0521 P06DE P1101. It advises inspections for potential engine camshaft cover re
- PIP5993B Service bulletin2024-10-21 · Engine
- This Preliminary information communicates the possibility of the engine running rough cold and failing dtc P050D.
- PIP5993A Service bulletin2024-09-13 · Engine
- This Preliminary information communicates the possibility of the engine running rough cold and failing dtc P050D.
- PIP5993 Service bulletin2024-09-09 · Engine
- This Preliminary information communicates the possibility of the engine running rough cold and failing dtc P050D.
- PIP5947B Service bulletin2024-08-16 · Engine
- This Preliminary information communicates to the dealers information related to potential failed engine camshaft cover causing excessive engine oil consumption and blue smoke from the exhaust system at low mileage. Can also possibly cause a misfire and may or may not set history or current codes P0300 P050D P0521 P06DE. It advises inspections for potential engine camshaft cover replacement.
What P050D means
Source: SAE J2012 / OBD-IIP050D 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 P050D
Source: NHTSA files and the OBD-II standardCan 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.