B101D on Chevrolet

Control module internal hardware fault (Chevrolet and GMC; module varies)

Severity not verified — if the car runs badly, have it inspected

The code is stored by different modules on GM vehicles, from the OnStar module to the airbag computer. With the airbag light on, the restraint system may not work as designed, but no source rates the code itself, so the severity is not verified.

It gets more serious if:

  • Inspect soon: The airbag (SRS) light is on or flashing with the code, as in several Malibu reports

Safety-critical system: explanation only, no DIY steps. Source: how we rate severity

This page covers only what differs on Chevrolet. For what B101D means, the ranked causes and the test order, see the B101D guide.

What's different on Chevrolet

Chevrolet

  • 2013–2015 · Malibu

    Supported by vehicle data

    Malibu owners report B101D with C0186, C0196 and C0287 and the airbag light on; a dealer on a 2015 recommended replacing the airbag sensing module. GM bulletins file B101D under the OnStar module on the same models, so check which module stored it.

  • 2011–2015 · Silverado 1500

    Supported by vehicle data

    GM bulletins list B101D for Silverado 1500 telematics modules; an owner says B101D:31 appears when OnStar is disconnected.

  • 2011–2015 · Impala

    Supported by vehicle data

    GM bulletins cover Impala telematics module B101D; no Impala-specific repair is stated in the summaries.

  • PIT5236J (chevrolet)Status unverified

    OnStar telematics module B101D, complete campaign then call GM

    2006–2017impala, malibu, silverado-1500 · issued · NHTSA 10113318

    Tells technicians that vehicles with B101D stored in the telematics module need campaign 14395 or 15086 completed, then data gathered and GM Technical Assistance contacted.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • PIT5236B (chevrolet)Status unverified

    OnStar module does not support all B101D symptom codes

    2011–2015impala, malibu, silverado-1500 · issued · NHTSA 10114801

    Says the OnStar module does not support every B101D symptom code.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • PIC5492E (chevrolet)Status unverified

    B101D-37 history in the communication interface module

    2000–2017impala, malibu, silverado-1500 · issued · NHTSA 10111715

    Says engineering found B101D-37 only shows in history on the scan tool and does not cause OnStar problems.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

Sources and review

  1. NHTSA complaint ODI 1608585: 2015 Chevrolet Malibu, airbag light flashing — NHTSA Office of Defects Investigation (consumer complaint)
  2. NHTSA complaint ODI 1613746: 2013 Chevrolet Malibu, B101D-00 — NHTSA Office of Defects Investigation (consumer complaint)
  3. NHTSA complaint ODI 1412532: 2015 Chevrolet Malibu, service airbag message — NHTSA Office of Defects Investigation (consumer complaint)
  4. GM PIT5236J: DTC B101D stored in the telematics communication interface control module — General Motors (via NHTSA bulletin summary)
  5. GM PIT5236B: OnStar module does not support all B101D symptom codes — General Motors (via NHTSA bulletin summary)
  6. NHTSA complaint ODI 1890140: 2014 Chevrolet Silverado 1500, OnStar disconnected — NHTSA Office of Defects Investigation (consumer complaint)
Last reviewed
Written by
Saurabh K.
Editorial review
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Technician review
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This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error

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