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Service bulletin PIT5909C

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 id11009094
Published by NHTSA2024-10-24
Manufacturer's numberPIT5909C
Manufacturer's date2024-10-24
NHTSA componentSTRUCTURE:BODY

NHTSA's summary

This Preliminary information communicates that it is normal for the tailgate to drop faster than it used to after the GM Accessory Kicker Audio System is installed.

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

Vehicles listed
CHEVROLET SILVERADO 15002021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
GMC HUMMER EV PICKUP2022, 2023, 2024, 2025
GMC SIERRA 15002019, 2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)

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

Recalls for the same vehicles and component
20253502025-06-25. Structure
20250522025-02-06. Structure
25V0600002025-02-06. STRUCTURE:BODY:BUMPERS:ACTIVE SHUTTERS/GRILL
20240612024-02-01. Structure
20V3240002020-06-04. LATCHES/LOCKS/LINKAGES:HOOD:LATCH; STRUCTURE:BODY:HOOD
20200972020-03-12. Structure

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
PIE08342025-09-10. Service bulletin. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards the hood will not latch, open and/or gets stuck, hood ajar message displayed on driver information center (DIC), DTCs P257D, P257E, P257F, B1C80, B1C81, B1C85, B1C89, B1C8C, B1C8D, B1CB5 , B1CBF set.
25-NA-1142025-09-06. Service bulletin. This informational bulletin provides information on Anti-Chip Coating Appearance.
24-NA-0292025-07-07. Service bulletin. This informational bulletin provides information on HUMMER EV Water Leak Diagnostic Tips.
23-NA-0972025-06-16. Service bulletin. This service bulletin provides a procedure to correct a customer concern of Upper Glove Box Door does not Open when the Button is Depressed or Takes Multiple Presses to Open.
24-NA-1512025-06-07. Service bulletin. This technical bulletin provides repair information to correct a customer concern of Loose Roof Ditch Molding.
PIE08262025-05-03. Service bulletin. This engineering information (EI) is requesting pictures from technicians in regard to center hood molding being loose and/or potentially detaching from vehicle.
24-NA-0282025-05-02. Service bulletin. This service bulletin provides information on Power Tonneau Cover Diagnostic Tips.
19-NA-2552025-04-10. Service bulletin. This service bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
N2424845002025-04-10. Service campaign. Certain 2024 Chevrolet Silverado EV WT vehicles may have a condition in which the left and right rear door wiring is defective and the rear door ajar warning will not function properly. Dealers will replace the door harness.
25-NA-0222025-03-18. Service bulletin. This technical bulletin provides a procedure to correct the condition of Driver Window Stuck or Intermittent Operation Concerns.