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Service bulletin 12187C

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 id10090521
Published by NHTSA2017-02-06
Manufacturer's number12187C
Manufacturer's date2014-09-22
NHTSA componentELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

"12187C - CUSTOMER SATISFACTION PROGRAM (REVISED EXPIRATION DATE). CERTAIN VEHICLES THAT WERE SERVICED WITH AN INCORRECT CALIBRATION, MAY HAVE A CONDITION IN WHICH THE AUTOMATIC CRASH RESPONSE SYSTEM MAY NOT WORK AS INTENDED BECAUSE OF A SOFTWARE PROBLEM. THE AUTOMATIC CRASH RESPONSE SYSTEM IS INTENDED TO ENABLE THESE VEHICLES TO NOTIFY ONSTAR® IF THEY ARE INVOLVED IN CERTAIN TYPES OF CRASHES. THE SOFTWARE PROBLEM WE FOUND AFFECTS THE VEHICLE’S ABILITY TO NOTIFY ONSTAR® IN CRASHES THAT MEET THE SEVERITY PARAMETERS FOR AUTOMATIC CRASH NOTIFICATION BUT DO NOT TRIGGER AIRBAG DEPLOYMENT, SUCH AS CERTAIN REAR END CRASHES. IN CRASHES WITH AN AIRBAG DEPLOYMENT, THE AUTOMATIC CRASH RESPONSE SYSTEM WORKS AS DESIGNED. THIS CONDITION DOES NOT AFFECT THE DEPLOYMENT OF THE AIRBAGS OR THE SAFETY BELT PRETENSIONERS, WHICH REDUCE SLACK IN THE SAFETY BELT IMMEDIATELY AFTER IMPACT. THE AIRBAGS AND SAFETY BELT PRETENSIONERS WILL DEPLOY AS DESIGNED. A VEHICLE OCCUPANT WILL BE ABLE TO CONTACT AN ONSTAR® EMERGENCY ADVISOR BY PUSHING THE ONSTAR® EMERGENCY BUTTON. DEALERS ARE TO REPROGRAM THE SENSING AND DIAGNOSTIC MODULE (SDM)."

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 VERANO2012, 2013
CADILLAC ATS2013
CADILLAC SRX2012, 2013
CADILLAC XTS2013
CHEVROLET CRUZE2012, 2013
CHEVROLET EQUINOX2012, 2013
CHEVROLET VOLT2012, 2013
GMC TERRAIN2012, 2013

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

Recalls for the same vehicles and component
13V0970002013-03-15. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN:AUTOMATIC TRANSMISSION

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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PIC5741B2023-12-11. Service bulletin. Multiple DTCs Set When Using Scan Tool Device.
PIC5741A2023-12-11. Service bulletin. Multiple DTCs Set When Using Scan Tool Device.
PIC57412023-12-11. Service bulletin. Multiple DTCs Set When Using Scan Tool Device.
PIC5687C2023-12-11. Service bulletin. Checking Smartphone Bluetooth Software Update Status
PIC5656A2023-12-11. Service bulletin. Outside Ambient Temperature Display Missing.
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.