Please note: The TSB information displayed below are summaries. We do not have access to the full versions. To get full information about a particular TSB, write down the TSB title & date, & either contact your local dealer or click on the links below.

The TSB numbers are the NHTSA numbers, which are different from the manufacturer-assigned TSB numbers — the NHTSA doesn't keep track of those. It's a very screwed up situation that's almost completely unhelpful to you as the consumer. Use the issue date or the title when asking your dealer for more information about a TSB.

    ENGINE (PWS)

    • TSB #PIP5603

      NHTSA ID #10149049

      • Date Announced: OCTOBER 26 2018
      • Additional Info: How to Fix

      Summary: This Preliminary information communicates the possibility of the PCV orifice in the valve cover being plugged and causing the check engine lamp to illuminate and set dtc P00C7 and P0106.

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    • TSB #PIP5320G

      NHTSA ID #10147361

      • Date Announced: OCTOBER 09 2018
      • Additional Info: How to Fix

      Summary: This Preliminary Information communication advises the technician that the drive motor generator control module is being placed on restriction through the General Motors Technical Assistance Center. Dealer will need to call General Motors T

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    • TSB #PIC6161C

      NHTSA ID #10147360

      • Date Announced: OCTOBER 09 2018
      • Additional Info: How to Fix

      Summary: This Preliminary Information communication provides information to the technician about vehicles that have unwanted engine flairs while the vehicle is at steady state speed or while the vehicle is slowing. Dealer should communicate to the c

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    ENGINE AND ENGINE COOLING

    • TSB #PIP5222A

      NHTSA ID #10147386

      • Date Announced: OCTOBER 17 2018
      • Additional Info: How to Fix

      Summary: This Preliminary Information communication provides information to the technician about the difficulty in detecting internal combustion engine misfires with a fully charged high voltage battery. Technician should ensure that the high voltag

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    • TSB #PIP5320G

      NHTSA ID #10147361

      • Date Announced: OCTOBER 09 2018
      • Additional Info: How to Fix

      Summary: This Preliminary Information communication advises the technician that the drive motor generator control module is being placed on restriction through the General Motors Technical Assistance Center. Dealer will need to call General Motors T

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    ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)

    • TSB #PIP5603

      NHTSA ID #10149049

      • Date Announced: OCTOBER 26 2018
      • Additional Info: How to Fix

      Summary: This Preliminary information communicates the possibility of the PCV orifice in the valve cover being plugged and causing the check engine lamp to illuminate and set dtc P00C7 and P0106.

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    POWER TRAIN

    • TSB #PIC6244C

      NHTSA ID #10147359

      • Date Announced: OCTOBER 09 2018
      • Additional Info: How to Fix

      Summary: This Preliminary Information communication provides information to the technician about vehicles that have a Shift to Park message on the Driver Information Center. Technician will find Diagnostic Trouble Codes P1AEE, P1AEF, P1AF0, P1AF2, a

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    • TSB #PIP5321H

      NHTSA ID #10144470

      • Date Announced: AUGUST 24 2018
      • Additional Info: How to Fix

      Summary: This Preliminary Information communication advises the technician the 5ET50 electric variable automatic transmission assembly and component is being placed on restriction through the General Motors Technical Assistance Center. Dealer will n

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    POWER TRAIN:AUTOMATIC TRANSMISSION

    • TSB #PIC6244B

      NHTSA ID #10147340

      • Date Announced: OCTOBER 01 2018
      • Additional Info: How to Fix

      Summary: This Preliminary Information communication provides information to the technician about vehicles that have a Shift to Park message on the Driver Information Center. Technician will find Diagnostic Trouble Codes P1AEE, P1AEF, P1AF0, P1AF2, a

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    ELECTRICAL SYSTEM

    • TSB #PIT5630A

      NHTSA ID #10149061

      • Date Announced: OCTOBER 30 2018
      • Additional Info: How to Fix

      Summary: This Preliminary information communicates the possible setting of B101D-39 in the OnStar module and advises of byte info to retrieve while  engineering completes further investigation. 

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    • TSB #PIC6231B

      NHTSA ID #10147399

      • Date Announced: OCTOBER 23 2018
      • Additional Info: How to Fix

      Summary: This Preliminary Information communication provides information to the technician about vehicles EV range is less than expected, or the estimated EV range on the display is greater than the actual range achieved. Dealer should walk the cust

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    • TSB #PIC6124E

      NHTSA ID #10147396

      • Date Announced: OCTOBER 22 2018
      • Additional Info: How to Fix

      Summary: This Preliminary Information communication advises the technician the Battery Charge Module is being placed on restriction through the General Motors Technical Assistance Center. Dealer will need to call General Motors Technical Assistance

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    • TSB #PIP5320G

      NHTSA ID #10147361

      • Date Announced: OCTOBER 09 2018
      • Additional Info: How to Fix

      Summary: This Preliminary Information communication advises the technician that the drive motor generator control module is being placed on restriction through the General Motors Technical Assistance Center. Dealer will need to call General Motors T

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    • TSB #PIC6199A

      NHTSA ID #10145495

      • Date Announced: SEPTEMBER 19 2018
      • Additional Info: How to Fix

      Summary: This Preliminary Information communication advises the technician on the steps to diagnose the concern and the steps to repair the concern. Customer states that they are unable to select delayed or delayed/rate based charging. They will als

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    • TSB #PIC6130D

      NHTSA ID #10145494

      • Date Announced: SEPTEMBER 18 2018
      • Additional Info: How to Fix

      Summary: This Preliminary Information communication advises the technician that the accessory power module is being placed on part restriction. Dealer will need to call General Motors Technical Assistance Center for part replacement authorization.

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    • TSB #PIT5630

      NHTSA ID #10145467

      • Date Announced: SEPTEMBER 06 2018
      • Additional Info: How to Fix

      Summary: This Preliminary information communicates the possible setting of B101D-39 in the OnStar module and advises of byte info to retrieve and of engineering investigation.

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    • TSB #PIC6124D

      NHTSA ID #10144480

      • Date Announced: AUGUST 30 2018
      • Additional Info: How to Fix

      Summary: This Preliminary Information communication advises the technician the Battery Charge Module is being placed on restriction through the General Motors Technical Assistance Center. Dealer will need to call General Motors Technical Assistance

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    • TSB #PIP5321H

      NHTSA ID #10144470

      • Date Announced: AUGUST 24 2018
      • Additional Info: How to Fix

      Summary: This Preliminary Information communication advises the technician the 5ET50 electric variable automatic transmission assembly and component is being placed on restriction through the General Motors Technical Assistance Center. Dealer will n

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    ELECTRICAL SYSTEM:BATTERY

    • TSB #PIC6285B

      NHTSA ID #10147339

      • Date Announced: OCTOBER 01 2018
      • Additional Info: How to Fix

      Summary: This Preliminary information communicates more information to help diagnoseP1AEE and P1AEF. It Gives 3 possible reason for the codes to set and areas to look.

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    • TSB #PIC6124D

      NHTSA ID #10144480

      • Date Announced: AUGUST 30 2018
      • Additional Info: How to Fix

      Summary: This Preliminary Information communication advises the technician the Battery Charge Module is being placed on restriction through the General Motors Technical Assistance Center. Dealer will need to call General Motors Technical Assistance

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    • TSB #PIC6127K

      NHTSA ID #10144479

      • Date Announced: AUGUST 29 2018
      • Additional Info: How to Fix

      Summary: This Preliminary Information communication advises the technician that the High Voltage Drive Motor Battery hasbeen placed on part restriction by General Motors Technical Assistance. Dealer will need to call General Motors Technical Assista

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    EQUIPMENT

    • TSB #PIT5630A

      NHTSA ID #10149061

      • Date Announced: OCTOBER 30 2018
      • Additional Info: How to Fix

      Summary: This Preliminary information communicates the possible setting of B101D-39 in the OnStar module and advises of byte info to retrieve while  engineering completes further investigation. 

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    • TSB #PIC5779J

      NHTSA ID #10144465

      • Date Announced: AUGUST 20 2018
      • Additional Info: How to Fix

      Summary: This Preliminary Information communication provides the technician with information on the proper washing of the bright aluminum moldings to avoid the moldings from getting damaged. It is recommended that a non-alkaline solution be used for

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    EQUIPMENT:ELECTRICAL

    • TSB #PIT5630A

      NHTSA ID #10149061

      • Date Announced: OCTOBER 30 2018
      • Additional Info: How to Fix

      Summary: This Preliminary information communicates the possible setting of B101D-39 in the OnStar module and advises of byte info to retrieve while  engineering completes further investigation. 

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    EQUIPMENT ADAPTIVE

    • TSB #PIC5779J

      NHTSA ID #10144465

      • Date Announced: AUGUST 20 2018
      • Additional Info: How to Fix

      Summary: This Preliminary Information communication provides the technician with information on the proper washing of the bright aluminum moldings to avoid the moldings from getting damaged. It is recommended that a non-alkaline solution be used for

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