B1370 on GMC vehicles
B1370 is named on 12 GMC model years (2017–2020): 39 manufacturer filings and 0 owner reports in NHTSA’s files, across Yukon, Sierra, Sierra 2500HD, Sierra 3500HD.
Which GMC model years name B1370
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2017 GMC Yukon | Electrical System | 8 | — |
| 2018 GMC Yukon | Equipment | 6 | — |
| 2017 GMC Sierra | Electrical System | 5 | — |
| 2019 GMC Yukon | Equipment | 4 | — |
| 2018 GMC Sierra | Electrical System | 4 | — |
| 2019 GMC Sierra 2500HD | Electrical System | 3 | — |
| 2018 GMC Sierra 3500HD | Suspension | 3 | — |
| 2020 GMC Yukon | Electrical System | 2 | — |
| 2019 GMC Sierra 3500HD | Equipment | 1 | — |
| 2018 GMC Sierra 2500HD | Equipment | 1 | — |
| 2017 GMC Sierra 2500HD | Equipment | 1 | — |
| 2017 GMC Sierra 3500HD | Equipment | 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 B1370
Source: NHTSA manufacturer communicationsBulletins and campaigns GMC filed with NHTSA whose summary names B1370. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- PIT5586 Service bulletin2017-10-02 · Equipment — Other — Owners/Service/Other Manual
- This Preliminary information communicates a customer concern ofIPC gauges inoperative or fluctuate, No Start,No Crank,SIR Light / Service Airbag Message, Service Suspension Message,Radio display blank, Steering Wheel Controls (SWC) not illuminated, Turn Signal no audible feedback,HVAC controls inoperative. During diagnostics a technician may find any of the following DTC's: B1011, B1370, B3980, U0
- PIT5586A Service bulletin2018-03-27 · Steering
- This Preliminary information communicates a customer concern ofIPC gauges inoperative or fluctuate, No Start,No Crank,SIR Light / Service Airbag Message, Service Suspension Message,Radio display blank, Steering Wheel Controls (SWC) not illuminated, Turn Signal no audible feedback,HVAC controls inoperative. During diagnostics a technician may find any of the following DTC's: B1011, B1370, B3980, U0
- PIT5586B Service bulletin2018-08-27 · Engine
- This Preliminary information communicates a customer concern ofIPC gauges inoperative or fluctuate, No Start,No Crank,SIR Light / Service Airbag Message, Service Suspension Message,Radio display blank, Steering Wheel Controls (SWC) not illuminated, Turn Signal no audible feedback,HVAC controls inoperative. During diagnostics a technician may find any of the following DTC's: B1011, B1370, B3980, U0
- PIT5586C Service bulletin2019-06-24 · Equipment — Electrical
- This Preliminary information communicates a customer concern of IPC gauges inoperative or fluctuate, No Start, No Crank, SIR Light / Service Airbag Message, Service Suspension Message, Radio display blank, Steering Wheel Controls (SWC) not illuminated, Turn Signal no audible feedback, HVAC controls inoperative. During diagnostics a technician may find any of the following DTC's: B1011, B1370, B398
- PIT5586D Service bulletin2020-03-11 · Electrical System
- This Preliminary information communicates a customer concern of IPC gauges inoperative or fluctuate, No Start, No Crank, SIR Light / Service Airbag Message, Service Suspension Message, Radio display blank, Steering Wheel Controls (SWC) not illuminated, Turn Signal no audible feedback, HVAC controls inoperative. During diagnostics a technician may find any of the following DTC's: B1011, B1370, B398
- PIT5586E Service bulletin2020-10-01 · Electrical System
- This Preliminary information communicates a customer concern of IPC gauges inoperative or fluctuate, No Start, No Crank, SIR Light / Service Airbag Message, Service Suspension Message, Radio display blank, Steering Wheel Controls (SWC) not illuminated, Turn Signal no audible feedback, HVAC controls inoperative. During diagnostics a technician may find any of the following DTC's: B1011, B1370, B398
What B1370 means
Source: SAE J2012 / OBD-IIB1370 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 B1370 a known problem on GMC vehicles?
It is a documented one: NHTSA's files hold 39 manufacturer filings and 0 owner reports naming B1370 on 12 GMC model years (2017–2020). 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 B1370 appear on most?
2017 Yukon (8 documents), 2018 Yukon (6 documents), 2017 Sierra (5 documents).
Does B1370 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.