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.

    SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY

    • TSB #PIT5635

      NHTSA ID #10147368

      • Date Announced: OCTOBER 10 2018
      • Additional Info: How to Fix

      Summary: This preliminary information suggests the technician verify a noise from the rear is or isn't coming from the rear leaf springs before a service on the springs is performed.

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    ENGINE (PWS)

    • TSB #PIP5597

      NHTSA ID #10147363

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

      Summary: This Preliminary information communicates to the technician where to find the engine identification tag and what information on that tag to use during programming of someengine control modules.

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    • TSB #PIP5486F

      NHTSA ID #10147365

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

      Summary: This Preliminary information communicates possible concerns and a diagnostic strategy to locate and repair various noises within the engine as well as some misfire causes.

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    • TSB #PIP5486D

      NHTSA ID #10144456

      • Date Announced: AUGUST 14 2018
      • Additional Info: How to Fix

      Summary: This Preliminary information communicates possible concerns and a diagnostic strategy to locate and repair various noises within the engine as well as some misfire causes.

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    • TSB #PIP5493G

      NHTSA ID #10144455

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

      Summary: This Preliminary information communicates diagnostic tips for misfires on active fuel management cylinders and engineering investigations into cylinder 6 misfire on XT5 and cylinder 4 misfire on LaCrosse both of which are 2017. Changes to P

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    ENGINE AND ENGINE COOLING

    • TSB #PIP5583

      NHTSA ID #10145465

      • Date Announced: SEPTEMBER 05 2018
      • Additional Info: How to Fix

      Summary: This Preliminary information communicates direction to lubricate a noisy water pump shaft seal with coolant in the weap hole.

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    FUEL SYSTEM, GASOLINE

    • TSB #PIP5602

      NHTSA ID #10147398

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

      Summary: This Preliminary information communicates to the dealer technician that there may be a temporary condition leading to Reductant Quality Sensor Circuit Low Voltage DTC P206C. This condition may occur after a sustained right hand turn maneuve

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    POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:FLOOR SHIFT

    • TSB #PIP5595

      NHTSA ID #10147347

      • Date Announced: OCTOBER 02 2018
      • Additional Info: How to Fix

      Summary: This Preliminary information communicates the noise iso later for the shift boot may be out of position deforming the leather or allowing noise into the cabin.

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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 #PIP5491A

      NHTSA ID #10147362

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

      Summary: This Preliminary information communicates to the technician when diagnosing intermittent circuit concerns to look at the connector for missing weather pack seals that could allow water intrusion into the connector and lead to corrosion on t

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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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    EXTERIOR LIGHTING:FOG LIGHTS

    • TSB #PIT5628

      NHTSA ID #10144481

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

      Summary: This preliminary information advises if the fog lamp indicator is inoperative after the fog lamp kit is installed the instrument cluster needs to be reprogrammed.

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    STRUCTURE

    • TSB #PIP5491A

      NHTSA ID #10147362

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

      Summary: This Preliminary information communicates to the technician when diagnosing intermittent circuit concerns to look at the connector for missing weather pack seals that could allow water intrusion into the connector and lead to corrosion on t

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    SEATS

    • TSB #PIT5605A

      NHTSA ID #10147388

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

      Summary: This preliminary information shows how to inspect for and correct a rattle from the rear seat latches.

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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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    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:OTHER:LABELS

    • TSB #PIP5597

      NHTSA ID #10147363

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

      Summary: This Preliminary information communicates to the technician where to find the engine identification tag and what information on that tag to use during programming of someengine control modules.

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