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Service bulletin PIT5909B

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 id10240804
Published by NHTSA2023-08-21
Manufacturer's numberPIT5909B
Manufacturer's date2023-07-31
NHTSA componentEQUIPMENT:ELECTRICAL

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

Equipment and accessories

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

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

Recalls for the same vehicles and component
20221602022-03-31. Accessories
21V4960002021-07-01. EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
20201652020-04-16. Accessories
20194942019-10-03. Accessories
20192052019-04-26. Accessories

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
22-NA-0962024-05-08. Service bulletin. This informational bulletin provides information for dealers/technicians on Customer Education Bulletin for Google Built-in Radio.
22-NA-0392024-05-07. Service bulletin. This informational bulletin provides information for dealers/technicians on front license plate adapter bracket installation during PDI.
24-NA-0772024-05-02. Service bulletin. This informational bulletin provides steps to install a Front License Plate bracket.
24-NA-0582024-05-02. Service bulletin. This service bulletin provides a service procedure to correct a customer concern of the Malfunction Indicator Lamp (MIL) Illuminated - DTC P062F, P040B, P041B, P0422, P060C, P062B, P1428, P142A, P20EE, P20FE, P22F9, P244A, and/or P244B Set.
23-NA-0642024-05-02. Service bulletin. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
18-NA-1802024-05-01. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
24-NA-0702024-04-27. Service bulletin. This bulletin provides a procedure to program the ECM if the DTC is set and/or the start/stop doesn't restart after a stop.
24-NA-0692024-04-27. Service bulletin. This technical bulletin provides repair information to correct a customer concern of Image Processing Module setting DTC U3000_57.
21-NA-1552024-04-23. Service bulletin. This informational bulletin advises the technician to check for faults that may be caused by the trailer otherwise found by a possible faulty trailer connector.
20-NA-1322024-04-23. Service bulletin. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.