P26BB on GMC vehicles
P26BB is named on 8 GMC model years (2019–2022): 45 manufacturer filings and 0 owner reports in NHTSA’s files, across Yukon, Acadia, Sierra.
Which GMC model years name P26BB
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2022 GMC Yukon | Electrical System | 10 | — |
| 2020 GMC Acadia | Electrical System | 8 | — |
| 2020 GMC Sierra | Electrical System | 8 | — |
| 2019 GMC Sierra | Electrical System | 7 | — |
| 2022 GMC Sierra | Engine | 6 | — |
| 2022 GMC Acadia | Exterior Lighting | 2 | — |
| 2021 GMC Acadia | Equipment | 2 | — |
| 2019 GMC Acadia | Exterior Lighting | 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 P26BB
Source: NHTSA manufacturer communicationsBulletins and campaigns GMC filed with NHTSA whose summary names P26BB. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- 22-NA-082 Service bulletin2022-04-14 · Electrical System
- This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp Illuminated with DTC P06DD, P2B60, P26BB, P1098 Set.
- PIE0697 Service bulletin2022-05-06 · Equipment — Other — Owners/Service/Other Manual
- This engineering information (EI) is requesting information from the technician and to perform the check list provided in regards to a Malfunction Indicator Lamp (MIL) illuminated on driver information center (DIC) with DTCs P26BB and/or P2B60 Set.
- PIE0697A Service bulletin2022-06-22 · Engine And Engine Cooling
- This engineering information (EI) is requesting information from the technician and to perform the check list provided in regards to a Malfunction Indicator Lamp (MIL) illuminated on driver information center (DIC) with DTCs P26BB and/or P2B60 Set.
- PIP5675B Service bulletin2020-03-16 · Electrical System
- This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing and related direction based on the results.
- PIP5675D Service bulletin2020-05-20 · Air Bags
- This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing and related direction based on the results.
- PIP5675E Service bulletin2020-06-25 · Electrical System
- This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing and related direction based on the results.
- PIP5675 Service bulletin2019-09-10 · Electrical System
- This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing and related direction based on the results.
- PIP5675A Service bulletin2020-01-17 · Electrical System
- This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing and related direction based on the results.
- 21NA256 Service bulletin2021-12-13 · Electrical System — Software
- This service bulletin provides repair information for dealers/technicians to correct a customer concern of a Malfunction Indicator Lamp Illuminated with DTC P26BB Set.
- 21NA256 Service bulletin2021-11-09 · Exterior Lighting
- This service bulletin provides repair information for dealers/technicians to correct a customer concern of a Malfunction Indicator Lamp Illuminated with DTC P26BB Set.
What P26BB means
Source: SAE J2012 / OBD-IIP26BB 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 P26BB a known problem on GMC vehicles?
It is a documented one: NHTSA's files hold 45 manufacturer filings and 0 owner reports naming P26BB on 8 GMC model years (2019–2022). 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 P26BB appear on most?
2022 Yukon (10 documents), 2020 Acadia (8 documents), 2020 Sierra (8 documents).
Does P26BB 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.