Chevrolet B101D-37
2011-2015 GM Passenger Cars & Light Duty Trucks with OnStar (RPO UE1) This PI was superseded to update Model Years Please discard PIC5492B. Condition/Concern While diagnosing a veh
Common search variants: B101D37 · B101D 37 · B101D_37 · Search ignores case and common separators.
Quick answer
B101D-37 may be found as a history code in the OnStar VCIM. GM states it does not cause OnStar operating issues and should be disregarded; diagnose the customer’s actual symptoms and any additional codes.
This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.
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1. What does B101D-37 mean?
B101D-37 may be found as a history code in the OnStar VCIM. GM states it does not cause OnStar operating issues and should be disregarded; diagnose the customer’s actual symptoms and any additional codes.
2. Technical explanation
The verified GM communication PIC5492E says that, during diagnosis of an OnStar concern, technicians may find history DTC B101D-37 in the OnStar Vehicle Communication Interface Module (VCIM). Engineering determined that this code displays only as history on the scan tool and will not cause problems with OnStar system operation.
3. What system is affected?
OnStar / Vehicle Communication Interface Module (VCIM).
4. How serious is this code?
Not yet established by verified evidence. The verified GM communication states that this history DTC does not cause OnStar operating issues.
5. Symptoms you may notice
- B101D-37 appears as a history DTC in the OnStar VCIM during scan-tool diagnosis.
- The verified bulletin does not establish a symptom caused by B101D-37 itself.
6. Possible causes
- The verified GM communication does not identify a failure cause for B101D-37.
- GM engineering determined that the code may display only as a history entry and does not cause OnStar system-operation issues.
7. Can I still drive the vehicle?
Not yet established by verified evidence.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- If B101D-37 is found only in history, follow GM’s direction to disregard it.
- Address the symptoms reported by the customer.
- Evaluate any additional diagnostic trouble codes found during diagnosis.
10. Step-by-step troubleshooting
- Confirm whether B101D-37 is stored as a history DTC in the OnStar VCIM.
- Do not treat B101D-37 alone as the cause of an OnStar concern.
- Continue diagnosis based on the customer-reported concern and any additional codes.
11. When to contact service
Seek GM/Chevrolet service diagnosis if there is an active customer concern or additional diagnostic trouble codes. The verified bulletin directs dealers to address reported symptoms and any additional codes.
12. What the service center may check
- Scan the OnStar VCIM for codes.
- Determine whether B101D-37 is history-only.
- Check and diagnose additional codes relevant to the reported concern.
- Diagnose the reported symptom rather than attributing it to history B101D-37.
13. Possible repair or resolution
- No repair for B101D-37 alone is established by the verified GM communication.
- GM’s documented resolution is to disregard the history DTC and diagnose the actual symptom and any additional codes.
14. Affected vehicles
- Chevrolet Bolt EV · 2011–2017 · US
- Chevrolet Spark · 2011–2015 · US
- Chevrolet Spark · 2011–2017 · US
- Chevrolet Volt · 2011–2015 · US
- Chevrolet Volt · 2011–2017 · US
15. Related TSBs / service bulletins
- GM PIC5492E, published December 12, 2016, titled “Diagnostic Tip: Diagnosing Vehicles with OnStar DTC B101D-37.” It applies to 2011–2017 GM passenger cars and light-duty trucks with OnStar (RPO UE1), and 2000–2015 Canada GM passenger cars and trucks with the Canada upgrade, referencing the latest version of Bulletin 15-08-44-001.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Official source: NHTSA-hosted GM manufacturer communication PIC5492E: https://static.nhtsa.gov/odi/tsbs/2016/MC-10111715-9999.pdf
19. Frequently asked questions
What does OnStar DTC B101D-37 mean?
The verified GM communication identifies it as a history DTC that may appear in the OnStar VCIM during diagnosis of an OnStar concern. The supplied evidence does not establish a component-failure meaning beyond that.
Does B101D-37 cause OnStar to stop working?
According to GM engineering in PIC5492E, no. The code will only display in history on the scan tool and will not cause issues with OnStar system operation.
Should B101D-37 be repaired or cleared?
The verified GM communication says dealers are to disregard this history DTC. It does not establish a repair procedure or a requirement to clear the code.
What should be diagnosed instead?
GM directs technicians to address the symptoms described by the customer, including any additional codes that may be present.