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Service bulletin GCUS-3-780

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 id10125997
Published by NHTSA2017-12-22
Manufacturer's numberGCUS-3-780
Manufacturer's date2016-12-07
NHTSA componentSTRUCTURE; SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER

NHTSA's summary

16129 Service Update. Certain vehicles, equipped with heated seat systems, may have a condition in which the heat output level (Hi/Med/Low) does not match what is illuminated on the display and the customer does not receive the selected heated seat level. Dealers will reprogram the body control module.

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

Body and frame, Seats

Vehicles listed
CADILLAC ATS2017
CADILLAC CTS2017

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
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10-08-110-001L2025-02-11. Service bulletin. This service bulletin provides information on proper use of floor mats.
21-NA-0432024-12-10. Service bulletin. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
22-NA-2442024-11-13. Service bulletin. This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
23-NA-2192024-11-05. Service bulletin. This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.
PIT61802024-08-13. Service bulletin. This Preliminary information communicates assistance in locating the Rear seat belt comfort guides in the parts catalog.
22-NA-2442024-05-30. Warranty extension. This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
06-00-89-029V2024-05-16. Service bulletin. This service bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
PI0281K2024-02-14. Service bulletin. This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.