Cadillac B101D
– in the U.S., refer to GM Training video 10212.01D (January
Quick answer
For 2014–2016 Cadillac ELR vehicles in the U.S., verified GM/NHTSA bulletin evidence links DTC B101D to the Passenger Presence System (PPS). The bulletin states that electronic-device interference can set the code and illuminate a Service Airbag message; however, it also directs replacement of the PPS system whether B101D is current or history.
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 mean?
For 2014–2016 Cadillac ELR vehicles in the U.S., verified GM/NHTSA bulletin evidence links DTC B101D to the Passenger Presence System (PPS). The bulletin states that electronic-device interference can set the code and illuminate a Service Airbag message; however, it also directs replacement of the PPS system whether B101D is current or history.
2. Technical explanation
The supplied official bulletin evidence states that a charging device can cause interference in the PPS module and illuminate the Service Airbag Message in the Driver Information Center (DIC). After the charging device is removed, B101D may change to a history code. The bulletin says it is not possible to distinguish electronic-device interference from a qualifying ECU hardware fault based on this condition. Its stated repair direction is to replace the PPS system regardless of whether B101D is current or history.
3. What system is affected?
Passenger Presence System (PPS), including the PPS module/system. The bulletin evidence also identifies a Service Airbag message in the DIC.
4. How serious is this code?
Not yet established by verified evidence. The supplied evidence concerns the occupant-restraint/passenger-presence system and a Service Airbag message.
5. Symptoms you may notice
- Service Airbag Message illuminated in the Driver Information Center (DIC).
- B101D may be stored as a current or history DTC.
- The bulletin describes interference associated with a charging device.
6. Possible causes
- Electronic-device interference in the PPS module from a charging device.
- A qualified ECU hardware fault; the bulletin states that it is not possible to distinguish this from electrical-device interference using the described condition.
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. The bulletin states that a charging device can interfere with the PPS module; once the charging device is removed, B101D may go to history.
9. What you can safely do
- If a charging device is present and the Service Airbag message/B101D occurs, the bulletin states that removal of the charging device may allow B101D to change to history.
- Arrange diagnosis and repair by qualified service personnel; the supplied bulletin directs PPS-system replacement for B101D whether current or history.
- Do not attempt PPS or airbag-system repairs yourself.
10. Step-by-step troubleshooting
- Confirm whether B101D is current or history.
- Review whether a charging device or electronic device was present when the message/code occurred.
- The bulletin states that current-versus-history status cannot determine whether the event was interference or a qualifying ECU hardware fault.
11. When to contact service
Contact a Cadillac/GM service facility. The verified bulletin directs replacement of the PPS system when B101D is present as either a current or history DTC.
12. What the service center may check
- Check DTC B101D status as current or history.
- Consider the presence of a charging device/electronic-device interference described in the bulletin.
- Replace the PPS system regardless of whether B101D is current or history, as directed by the bulletin.
13. Possible repair or resolution
- Replace the Passenger Presence System (PPS system).
- Discuss with the customer that electronic devices may interfere with the PPS system, specifically when B101D is stored as history.
14. Affected vehicles
- Cadillac ELR · 2014–2016 · US
15. Related TSBs / service bulletins
- GM/NHTSA Manufacturer Communication 12-09-41-002D, published February 28, 2017; NHTSA document MC-10116590-9999. It applies to the listed vehicle group in the bulletin. Supplied applicability evidence identifies 2014–2016 Cadillac ELR vehicles in the U.S.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Official source: NHTSA Manufacturer Communication PDF 10116590, bulletin 12-09-41-002D: https://static.nhtsa.gov/odi/tsbs/2017/MC-10116590-9999.pdf
19. Frequently asked questions
What does B101D mean on a 2014–2016 Cadillac ELR?
Verified bulletin evidence associates B101D with the Passenger Presence System (PPS) and a possible Service Airbag message. The supplied database title/meaning text is incomplete, so a fuller formal code definition is not established by the provided evidence.
Can a charger cause B101D?
The bulletin states that a charging device can cause interference in the PPS module. Once the charging device is removed, B101D may go to history.
Does a history B101D need repair?
Yes. The bulletin directs replacement of the PPS system whether B101D is current or history.
Can the technician tell whether B101D was only electronic interference?
No. The bulletin states that it is not possible to tell the difference between electrical-device interference and a qualified ECU hardware fault.