B14DC on GMC vehicles
B14DC is named on 5 GMC model years (2021–2025): 58 manufacturer filings and 2 owner reports in NHTSA’s files, across Yukon.
Which GMC model years name B14DC
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2021 GMC Yukon | Air Bags | 43 | 2 |
| 2022 GMC Yukon | Air Bags | 6 | — |
| 2023 GMC Yukon | Seats | 5 | — |
| 2025 GMC Yukon | Electrical System | 2 | — |
| 2024 GMC Yukon | Air Bags | 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.
What GMC owners said
Source: NHTSA complaint databaseOwners’ own words, scrubbed of anything identifying. Unverified reports filed with NHTSA — what was said, not a finding that it was true.
Safety risk: Safety was put at extreme risk because active Diagnostic Trouble Code B14DC completely deactivates the airbags
GMC filings that name B14DC
Source: NHTSA manufacturer communicationsBulletins and campaigns GMC filed with NHTSA whose summary names B14DC. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- PIT5759 Service bulletin2020-07-23 · Air Bags — Air Bag/Restraint Control Module
- This Preliminary information communicates an issue with the SIR MIL turning on and DTC B14DC setting. Engineering is root causing the concern.
- PIT5759A Service bulletin2020-07-29 · Electrical System
- This Preliminary information communicates an issue with the SIR MIL turning on and DTC B14DC setting. Engineering is root causing the concern.
- PIT5759B Service bulletin2020-08-05 · Equipment
- This Preliminary information communicates an issue with the SIR MIL turning on and DTC B14DC setting. Engineering is root causing the concern.
- PIT5885 Service bulletin2022-01-19 · Air Bags
- This Preliminary information communicates an issue with an SIR MIL with DTC B14DC caused by the air bag connector contacting the foam in the drivers seat. Dealer to remove the foam that is contacting the air bag connector.
- PIT5885A Service bulletin2022-04-13 · Air Bags — Air Bag/Restraint Control Module — Software
- This Preliminary information communicates an issue with an SIR MIL with DTC B14DC caused by the air bag connector contacting the foam in the drivers seat. Dealer to remove the foam that is contacting the air bag connector.
- 23-NA-085 Service bulletin2023-05-05 · Air Bags
- This technical bulletin provides a procedure to correct the condition of Service Restraint System Message / Air Bag Warning MIL / DTC B14DC Set.
- 24-NA-255 Service bulletin2024-11-14 · Electrical System
- This technical bulletin provides repair information to correct a customer concern of Air Bag Warning MIL with DTC B14DC.
What B14DC means
Source: SAE J2012 / OBD-IIB14DC is a manufacturer-specific code: the second character is a 1, which under the OBD-II standard hands the definition to whoever built the vehicle. The same code can mean one thing on a Ford and something unrelated on a Hyundai. Any site that prints a single definition for it is guessing.
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 B14DC a known problem on GMC vehicles?
It is a documented one: NHTSA's files hold 58 manufacturer filings and 2 owner reports naming B14DC on 5 GMC model years (2021–2025). 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 B14DC appear on most?
2021 Yukon (45 documents), 2022 Yukon (6 documents), 2023 Yukon (5 documents).
Does B14DC 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.