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Service bulletin PI1212

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 id10070939
Published by NHTSA2016-06-13
Manufacturer's numberPI1212
Manufacturer's date2014-04-01
NHTSA componentELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

SUMMARY TO BE PROVIDED ON A FUTURE DATE.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Software

Vehicles listed
BUICK LACROSSE2014
BUICK REGAL2014
CADILLAC ATS2014
CADILLAC CTS2014
CADILLAC ELR2014
CADILLAC SRX2014
CADILLAC XTS2014
CHEVROLET SILVERADO 15002014, 2015 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2015
CHEVROLET TAHOE2015
GMC SAVANA 15002014, 2015 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2015

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
20-NA-1322024-04-05. Service bulletin. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
PIT53502024-04-01. Service bulletin. Programming IPC Engine Hours Into A Replacement IPC.
141042023-12-18. Service bulletin. Oxygen Sensor Fracture
130089004H2023-12-11. Service bulletin. Car and Truck Fix it Right the First Time Issues
1300890032023-12-11. Service bulletin. Vehicle Software Enhancements
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.
PI11582021-04-29. Service bulletin. DTC U0121 Falsely Set Condition/Concern Technicians may find DTC U0121 stored in history with no other symptoms. This condition may be caused by a software anomaly.
PI0949A2021-04-27. Service bulletin. Required Programming for Cadillac Professional Vehicle Applications To configure the vehicle for proper operation of the electronic suspension control system (ESC), the following procedure must be performed.
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