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Service bulletin 18NA377

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 id10160120
Published by NHTSA2019-05-20
Manufacturer's number18NA377
Manufacturer's date2019-04-15
NHTSA componentSEATS

NHTSA's summary

This technical bulletin provides repair information to correct a customer concern of front seat lateral movement and/or click type noise while driving.

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

Seats

Vehicles listed
CADILLAC ESCALADE2015, 2016, 2017, 2018, 2019
CADILLAC ESCALADE ESV2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE ESV2017, 2018, 2019
CHEVROLET SILVERADO2017
CHEVROLET SILVERADO 15002014, 2015, 2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002019 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002019 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2015, 2016, 2017, 2018, 2019
CHEVROLET TAHOE2015, 2016, 2017, 2018, 2019
GMC SIERRA 15002015, 2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002019 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002019 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2015, 2016, 2017, 2018
GMC YUKON XL2015, 2016, 2017, 2018

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

Recalls for the same vehicles and component
20212122021-04-09. Seats And Restraints
20206242020-12-17. Seats And Restraints
20195752019-11-14. Seats And Restraints
20185352018-09-26. Seats And Restraints
20182332018-05-04. Seats And Restraints
20174452017-09-15. Seats And Restraints
20161532016-04-11. Seats And Restraints
20144372014-10-07. Seats And Restraints
20143152014-07-29. Seats And Restraints
14V4460002014-07-23. SEATS

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
PIT61802024-08-13. Service bulletin. This Preliminary information communicates assistance in locating the Rear seat belt comfort guides in the parts catalog.
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.
PI1354J2024-02-14. Service bulletin. This preliminary bulletin provides additional guidance for diagnosing vibrations or disturbances that may occur on full size pickups and how to correct and repair.
14340B2024-01-16. Service bulletin. Incomplete Weld on the Seat Hook Bracket Assembly
143402024-01-16. Service bulletin. Incomplete Weld on the Seat Hook Bracket Assembly
PI3541J2024-01-04. Service bulletin. This preliminary bulletin provides additional guidance for diagnosing vibrations or disturbances that may occur on full size pickups and how to correct and repair.
13323A2023-12-11. Service bulletin. F/CMVSS NONCOMPLIANCE RECALL - Manual Seatback Recliner Lever
PIT5284A2023-12-04. Service bulletin. Rattle Noise From Second Row Seat.
PIT52842023-12-04. Service bulletin. Rattle Noise From Second Row Seat.
PIT52232023-12-04. Service bulletin. Front Driver Or Passenger Seat Cover / Cushion Loose.