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Service bulletin GCUS-3-886

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 id10126028
Published by NHTSA2017-12-22
Manufacturer's numberGCUS-3-886
Manufacturer's date2017-03-23
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

17098 - Service Update. Certain vehicles may have a condition where a false failure action is being taken when it is not required. This condition can result in the transmission holding the last known safe gear for 6 seconds. A malfunction indicator lamp (MIL) is set when this default happens more than 2 times, and reduced propulsion can happen for all 8-speed transmission applications. Dealers will reprogram the transmission control module (TCM).

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

Transmission and driveline, Automatic transmission

Vehicles listed
CADILLAC ATS2017
CADILLAC CT6 PLUG-IN HYBRID2017 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC CTS2017
CADILLAC ESCALADE2017
CADILLAC ESCALADE ESV2017
CHEVROLET CAMARO2017
CHEVROLET CORVETTE2017
CHEVROLET SILVERADO2017
GMC SIERRA2017
GMC YUKON2017
GMC YUKON XL2017

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

Other bulletins for the same vehicles and component
21-NA-2452024-04-05. Service bulletin. This service bulletin provides repair information to correct a customer concern of seeing a Shift to Park Message Displayed in DIC.
17-NA-0662023-07-25. Service bulletin. This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.
16-NA-1302023-03-08. Service bulletin. This service bulletin provides information for after installation of a replacement upper valve body, the transmission may have no Reverse and no 2nd gear.
PIP5621C2022-10-17. Service bulletin. This Preliminary information communicates to the dealer technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. TAC is requesting the GDS2 session logs be sent in before the dealer contacts TAC.
22NA0422022-07-18. Service bulletin. Information on Camaro ZL1 10-Speed MGL Automatic Transmission Fluid Level Setting for the Track.
21NA1992022-02-14. Service bulletin. This informational bulletin advises the technician to replace the TBV if the transmission has any type of repair even if no problem was found, to replace the tbv.
990420002L2021-08-09. Service bulletin. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.
173372021-04-29. Service bulletin. General Motors has decided to conduct a Voluntary Emission Recall involving certain 2016 model year Chevrolet Colorado, GMC Canyon; 2017 model year Chevrolet Express, GMC Savana; 2017-2018 model year Chevrolet Colorado, Cruze, Silverado HD, GMC Canyon, Sierra HD and 2018 model year Chevrolet Equinox, GMC Terrain vehicles, equipped with a diesel engine. The engine control module in these vehicles may not properly diagnose a fault in the exhaust particulate matter sensor. Additionally, a subset of these vehicles, certain 2017 model year Chevrolet Silverado HD and GM Sierra HD vehicles, may in rare instances exhibit a condition in which the engine surges up to 2,800 RPM during vehicle coast or vehicle braking. Correction Program the engine control module, and transmission control module when applicable.
17337-012021-04-29. Service bulletin. General Motors has decided to conduct a Voluntary Emission Recall involving certain 2016 model year Chevrolet Colorado, GMC Canyon; 2017 model year Chevrolet Express, GMC Savana; 2017-2018 model year Chevrolet Colorado, Cruze, Silverado HD, GMC Canyon, Sierra HD and 2018 model year Chevrolet Equinox, GMC Terrain vehicles, equipped with a diesel engine. The engine control module in these vehicles may not properly diagnose a fault in the exhaust particulate matter sensor. Additionally, a subset of these vehicles, certain 2017 model year Chevrolet Silverado HD and GM Sierra HD vehicles, may in rare instances exhibit a condition in which the engine surges up to 2,800 RPM during vehicle coast or vehicle braking. Correction Program the engine control module, and transmission control module when applicable.
17336-022021-04-29. Service bulletin. On some 2015-2017 model year Cadillac Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, GMC Yukon and Yukon XL vehicles, may have a condition where thermal cycling on the combination transmission fluid/oil and AC condenser cooler creates a crack that may allow refrigerant to escape. This condition consequently may deactivate the AC system which may cause potential customer annoyance