B2B0E on GMC vehicles
B2B0E is named on 12 GMC model years (2019–2023): 39 manufacturer filings and 0 owner reports in NHTSA’s files, across Sierra, Sierra 2500HD, Sierra 3500HD.
Which GMC model years name B2B0E
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2020 GMC Sierra | Electrical System | 7 | — |
| 2019 GMC Sierra | Electrical System | 6 | — |
| 2020 GMC Sierra 2500HD | Electrical System | 4 | — |
| 2020 GMC Sierra 3500HD | Electrical System | 4 | — |
| 2022 GMC Sierra 2500HD | Electrical System | 3 | — |
| 2021 GMC Sierra | Electrical System | 3 | — |
| 2021 GMC Sierra 2500HD | Electrical System | 3 | — |
| 2021 GMC Sierra 3500HD | Electrical System | 3 | — |
| 2023 GMC Sierra 2500HD | Electrical System | 2 | — |
| 2022 GMC Sierra 3500HD | Electrical System | 2 | — |
| 2023 GMC Sierra 3500HD | Electrical System | 1 | — |
| 2019 GMC Sierra 3500HD | Electrical System | 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 B2B0E
Source: NHTSA manufacturer communicationsBulletins and campaigns GMC filed with NHTSA whose summary names B2B0E. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- PIE0546 Service bulletin2019-11-20 · Electrical System
- This engineering information (EI) bulletin is requesting information from the field on conditions of Service Engine Soon (SES) Lamp Illuminated, DTCs B2B0D and/or B2B0E Central Gateway Module Codes Unable to Communicate with HSLAN or LSLAN. Eng is attempting to root cause condition and validate a field fix.
- PIE0546A Service bulletin2020-03-26 · Electrical System
- This engineering information (EI) is requesting information from the field on conditions of Service Engine Soon (SES) Lamp Illuminated, DTCs B2B0D and/or B2B0E Central Gateway Module Codes Unable to Communicate with HSLAN or LSLAN. Eng is attempting to root cause condition and validate a field fix.
- PIT5743 Service bulletin2020-04-30 · Electrical System
- This Preliminary information communicates diagnostic tips when trying to root cause a SES MIL with DTC's B2B0D and B2B0E. Main cause is aftermarket electrical devices spliced into the ignition main fuses.
- PIT5743A Service bulletin2021-08-16 · Electrical System
- This Preliminary information communicates diagnostic tips when trying to root cause a SES MIL with DTC's B2B0D and B2B0E. Main cause is aftermarket electrical devices spliced into the ignition main fuses.
- PIT5743C Service bulletin2023-01-12 · Electrical System
- This Preliminary information communicates diagnostic tips when trying to root cause a SES MIL with DTC's B2B0D and B2B0E. Main cause is aftermarket electrical devices spliced into the ignition main fuses.
- PIT5743D Service bulletin2024-01-09 · Electrical System
- This Preliminary information communicates diagnostic tips when trying to root cause a SES MIL with DTC's B2B0D and B2B0E. Main cause is aftermarket electrical devices spliced into the ignition main fuses.
What B2B0E means
Source: SAE J2012 / OBD-IIB2B0E 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 B2B0E a known problem on GMC vehicles?
It is a documented one: NHTSA's files hold 39 manufacturer filings and 0 owner reports naming B2B0E on 12 GMC model years (2019–2023). 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 B2B0E appear on most?
2020 Sierra (7 documents), 2019 Sierra (6 documents), 2020 Sierra 2500HD (4 documents).
Does B2B0E 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.