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Service bulletin G-193017

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 id10092942
Published by NHTSA2017-02-25
Manufacturer's numberG-193017
Manufacturer's date2014-05-30
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

13120C - SERVICE UPDATE (REVISED EXPIRATION DATE). THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO REPROGRAM THE TRANSMISSION CONTROL MODULE (TCM) ON CERTAIN VEHICLES, EQUIPPED WITH 6-SPEED AUTOMATIC TRANSMISSION. THE TORQUE CONVERTER CLUTCH SOLENOID IN THE TECHM CAN STICK DUE TO DEBRIS IN THE TRANSMISSION. WHEN THE VEHICLE IS AT THE END OF A COAST-DOWN, AS THE VEHICLE IS COMING TO A STOP, A STUCK SOLENOID WILL FAIL TO RELEASE THE TORQUE CONVERTER CLUTCH. THIS KEEPS THE ENGINE DIRECTLY CONNECTED TO THE DRIVEN WHEELS. AS THE VEHICLE STOPS, THE ENGINE SPEED WILL BE PULLED DOWN BELOW NORMAL IDLE SPEED AND THE ENGINE MAY STALL. THE VEHICLE CAN BE IMMEDIATELY RESTARTED AND DRIVEN. THE REPROGRAMMING WILL INSTALL A REVISED CALIBRATION TO CORRECT THIS CONDITION.

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

Transmission and driveline, Automatic transmission

Vehicles listed
BUICK ENCLAVE2013
CADILLAC SRX2013
CADILLAC XTS2013
CHEVROLET EQUINOX2013
CHEVROLET IMPALA2013
CHEVROLET TRAVERSE2013
GMC ACADIA2013
GMC TERRAIN2013

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

Recalls for the same vehicles and component
16V5020002016-07-05. ELECTRICAL SYSTEM:IGNITION; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
14V2120002014-04-25. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
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
PIE02762024-04-08. Service bulletin. Engineering Information.
13120C2023-12-11. Service bulletin. Service Update for Inventory Vehicles Only Torque Converter Clutch Sticking Expires May 31, 2015
13120B2023-12-11. Service bulletin. Service Update for Inventory Vehicles Only Torque Converter Clutch Sticking Expires April 30, 2014
13120A2023-12-11. Service bulletin. Service Update for Inventory Vehicles Only Torque Converter Clutch Sticking Expires April 30, 2014
131202023-12-11. Service bulletin. Service Update for Inventory Vehicles Only Torque Converter Clutch Sticking Expires April 30, 2014
13077A2023-12-11. Service bulletin. Service Update for Inventory and Customer Vehicles Transmission Fuid Leak Expired with Base Warranty. Equipped with 6-Speed Automatic Transmission (6T70)
130772023-12-11. Service bulletin. Service Update for Inventory and Customer Vehicles Transfer Fluid Leak Expires with Base Warranty
122442023-12-04. Service bulletin. Shift Flare, Harsh Reverse to Drive Shift, Delayed 5-3 Downshift
17-NA-0662023-07-25. Service bulletin. This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.
06-00-89-031D2021-09-07. Service bulletin. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification