P0191 on GMC vehicles The fuel rail pressure sensor reading does not track the commanded pressure
P0191 is named on 8 GMC model years (2016–2018): 22 manufacturer filings and 0 owner reports in NHTSA’s files, across Savana, Sierra, Sierra 3500HD, Terrain, Canyon.
Which GMC model years name P0191
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2016 GMC Savana | Fuel/Propulsion System | 4 | — |
| 2016 GMC Sierra | Engine | 4 | — |
| 2018 GMC Sierra 3500HD | Fuel/Propulsion System | 3 | — |
| 2018 GMC Terrain | Engine | 3 | — |
| 2017 GMC Savana | Fuel/Propulsion System | 3 | — |
| 2018 GMC Canyon | Engine | 2 | — |
| 2017 GMC Canyon | Engine | 2 | — |
| 2018 GMC Savana | Engine | 1 | — |
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.
GMC filings that name P0191
Source: NHTSA manufacturer communicationsBulletins and campaigns GMC filed with NHTSA whose summary names P0191. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- PIP5151C Service bulletin2017-08-02 · Engine
- This Preliminary Information communication provides information to the technician about vehicles that may have a hard start, no start, rough running, or low fuel pressure. Technician may find Diagnostic Trouble Codes P0087, P0088, P0191 and P128E during the inspection. If during the inspection of the fuel system contamination is found the complete fuel system will need to be cleaned and flushed. A
- PIP5151E Service bulletin2018-06-18 · Fuel System, Gasoline
- This Preliminary Information communication provides information to the technician about vehicles that may have a hard start, no start, rough running, or low fuel pressure. Technician may find Diagnostic Trouble Codes P0087, P0088, P0191 and P128E during the inspection. If during the inspection of the fuel system contamination is found the complete fuel system will need to be cleaned and flushed. A
- PIP5151F Service bulletin2018-07-30 · Fuel System, Gasoline
- This Preliminary Information communication provides information to the technician about vehicles that may have a hard start, no start, rough running, or low fuel pressure. Technician may find Diagnostic Trouble Codes P0087, P0088, P0191 and P128E during the inspection. If during the inspection of the fuel system contamination is found the complete fuel system will need to be cleaned and flushed. A
- PIP5151D Service bulletin2017-09-18 · Engine
- This Preliminary Information communication provides information to the technician about vehicles that may have a hard start, no start, rough running, or low fuel pressure. Technician may find Diagnostic Trouble Codes P0087, P0088, P0191 and P128E during the inspection. If during the inspection of the fuel system contamination is found the complete fuel system will need to be cleaned and flushed. A
What P0191 means
Source: SAE J2012 / OBD-IIThe fuel rail pressure sensor reading does not track the commanded pressure.
A stored code names the test that failed, never the part that caused it. The record above is what GMC and its owners have filed about it; the code’s page across every make has the whole file.
Common questions
Source: NHTSA files and the OBD-II standardIs P0191 a known problem on GMC vehicles?
It is a documented one: NHTSA's files hold 22 manufacturer filings and 0 owner reports naming P0191 on 8 GMC 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 GMC models does P0191 appear on most?
2016 Savana (4 documents), 2016 Sierra (4 documents), 2017 Savana (3 documents).
Does P0191 on a GMC 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.