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Service bulletin GCUS-3-737

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 id10130681
Published by NHTSA2018-04-02
Manufacturer's numberGCUS-3-737
Manufacturer's date2016-10-31
NHTSA componentSEAT BELTS

NHTSA's summary

16048 -Service Update. Certain vehicles may have a condition in which the over-mold polymer material on the seat belt latch plate of the rear outboard seat belts may not allow the latch plate to be properly inserted into the buckle, or may require excessive force for the buckle to latch. The customer may be unable to buckle the seat belt. Dealers will inspect, and if necessary, replace one or both rear outboard seat belt assemblies.

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

Seat belts

Vehicles listed
BUICK REGAL2017
CADILLAC XTS2017

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
24-NA-1472024-09-04. Service bulletin. This service bulletin provides information on regular inspection of the Seat Belt Lap Anchor.
99-09-40-005I2023-07-28. Service bulletin. This service bulletin provides information on availability for a seat belt extender.
PIC6014A2023-04-17. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that may have the door locks will unlock immediately after auto locking usually at startup or while driving. Technician will need to remove power from the Sensing and Diagnostic Module. If doors no longer unlock unwanted the Sensing and Diagnostic Module should be replaced.
17-NA-2522017-12-22. Service bulletin. This technical bulletin provides a procedure for the driver seat belt buckle due to the seat belt buckle switch wiring pigtail getting pinched between the buckle and the buckle mounting bracket.
PI0388F2016-10-19. Service bulletin. THIS PRELIMINARY INFORMATIONAL BULLETIN PROVIDES A PROCEDURE TO REPOSITION THE FRONT SEAT BELT LATCH PLATE FOR CONCERNS REGARDING THE SEAT BELT WEBBING OR LATCH PLATE COMING TWISTED.