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Service bulletin PIP5250B

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10114439
Published by NHTSA2017-08-15
Manufacturer's numberPIP5250B
Manufacturer's date2015-02-25
NHTSA componentELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

This Preliminary Information communication provides information to the technician about vehicles that may have Service 4WD message in the Driver Information Center. During inspection technician may find Diagnostic Trouble Code C0398 or C0326 stored in the Transfer Case Control Module. If the vehicle has Regular Production Option Code NP0 and only has diagnostic trouble code C0398 stored in the Transfer Case Control Module, then use Service Programming System to update the Transfer Case Control Module. When working with vehicles equipped NHQ and NQ6 and setting Diagnostic Trouble Code C0398 when operated in areas where the ambient temperature is below 32 Fahrenheit (0 Celsius) use Global Diagnostic System 2 to review the freeze frame failure records, record all findings and Diagnostic Trouble Codes then clear the DTCs and data. Technician will need to operate the vehicle in all ranges and ensure that no Diagnostic Trouble Codes reset. If the vehicle had a Diagnostic Trouble Code C0398 in the Transfer Case Control Module stored with any other Diagnostic Trouble Code such as C0392, C0396, C0306 or other codes related to rotational position sensor or actuator position sensor it is likely that is causing a C0398 to set and replacement of the actuator will likely not repair the vehicle. If no Diagnostic Trouble Codes reset and C0398 was set without other rotational position sensor, or actuator position sensor Diagnostic Trouble Codes then replace the actuator motor with part number 23355888. Dealer will need to contact General Motors Product Quality Center for further assistance.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Software

Trouble codes named

C0306, C0326, C0392, C0396, C0398

Vehicles listed
CADILLAC ESCALADE2015
CADILLAC ESCALADE ESV2015 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 15002014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002015 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2015
CHEVROLET TAHOE2015
GMC CANYON2015
GMC SIERRA 15002014 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002015 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2015 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2015
GMC YUKON XL2015

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
14V3010002014-06-06. ELECTRICAL SYSTEM:SOFTWARE; SEAT BELTS:FRONT:WARNING LIGHT/DEVICES

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
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PIP5632G2023-01-30. Service bulletin. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
PIP4902Q2023-01-30. Service bulletin. This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
15-NA-0832021-04-20. Service bulletin. Recovery Process from a Controller Reprogramming Interruption During service reprogramming of the T87 TCM, some technicians may notice the TCM may fail during the reprogramming event and become unresponsive to the Service Programming System (SPS), unresponsive to the GDS2 tool. This bulletin addresses corrective actions to attempt to recover the module before declaring the TCM as a bad part and replacing. During reprogramming, an interruption can cause the module to lock up. A module reset may recover the TCM
21NA0102021-03-01. Service bulletin. This technical bulletin provides a procedure to reset the DTCs and take the vehicle for a test drive to verify the codes do not return.
16NA0192021-02-01. Service bulletin. This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.
16NA2052020-09-28. Service bulletin. This Technical bulletin provides a procedure to correct a customer concern of Blu-Ray Movies Do Not Start After Play Icon Selected on Menu.