P026D on GMC vehicles
P026D is named on 6 GMC model years (2020–2024): 15 manufacturer filings and 0 owner reports in NHTSA’s files, across Yukon, Savana, Sierra.
Which GMC model years name P026D
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2023 GMC Yukon | Engine | 5 | — |
| 2024 GMC Yukon | Engine | 2 | — |
| 2023 GMC Sierra | Engine | 2 | — |
| 2022 GMC Savana | Fuel/Propulsion System | 2 | — |
| 2021 GMC Savana | Electrical System | 2 | — |
| 2020 GMC Savana | Electrical System | 2 | — |
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 P026D
Source: NHTSA manufacturer communicationsBulletins and campaigns GMC filed with NHTSA whose summary names P026D. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- 22-NA-128 Service bulletin2024-05-30 · Engine
- This technical bulletin provides a procedure to test the intake manifold for any possible leaks that may cause the customers concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P0172, P026D, P2459, and/or P2A00 Set.
- 22-NA-128 Service bulletin2024-08-09 · Fuel/Propulsion System
- This technical bulletin provides a procedure to test the intake manifold for any possible leaks that may cause the customers concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P0172, P026D, P2459, and/or P2A00 Set.
- 24-NA-114 Service bulletin2024-06-26 · Fuel/Propulsion System
- This technical bulletin provides repair information to correct a customer concern of Check Engine Lamp Illuminated with DTC P026D Set, Engine LWN Controller E98 Update.
- PIP5977 Service bulletin2024-08-12 · Power Train
- This Preliminary information communicates to the dealer technician that DTC P026D is under investigation.
What P026D means
Source: SAE J2012 / OBD-IIP026D 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. 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 P026D a known problem on GMC vehicles?
It is a documented one: NHTSA's files hold 15 manufacturer filings and 0 owner reports naming P026D on 6 GMC model years (2020–2024). 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 P026D appear on most?
2023 Yukon (5 documents), 2022 Savana (2 documents), 2021 Savana (2 documents).
Does P026D 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.