Service bulletin No. 99-23-2

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)
Type	Service bulletin
NHTSA id	10240434
Published by NHTSA	2023-08-04
Manufacturer's number	No. 99-23-2
Manufacturer's date	2023-07-27
NHTSA component	SEAT BELTS

NHTSA's summary

Technical information for APA9 - replace screw connection for seat belt mount at rear left and/or right

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
PORSCHE PANAMERA	2017, 2018, 2019, 2020, 2021, 2022, 2023

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

Recalls for the same vehicles and component
23V443000	2023-06-26. SEAT BELTS:REAR/OTHER:ANCHORAGE
2021485	2021-08-04. Seats And Restraints
21V608000	2021-08-04. SEAT BELTS; SEAT BELTS:REAR/OTHER:RETRACTOR; SEAT BELTS:FRONT:RETRACTOR

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
No. 10-26	2026-04-07. Service bulletin. Symptom based workshop manual involving the Belt Lock Warning on Driver's Side Permanently Active in Conjunction with Fault Memory Entry with Regard to Belt Lock Switch "B101C07". The vehicles affected are listed in the attached PDF.
No. D736	2025-10-08. Service bulletin. Parts information for parts withdrawal involving the belt latch - part numbers 992857756E & 992857755D. The vehicles affected are cars that use the part numbers mentioned
No. 2116.3	2024-04-02. Service bulletin. Instructions on advanced technical information for the red warning on the instrument cluster. Occupant seat belt not fastened.
No. 2116.1	2022-05-03. Service bulletin. Instructions on advanced technical information for red warning in the instrument cluster - occupant seat belt not fastened.
No. 2116	2021-08-04. Service bulletin. Advanced technical information for a red warning light in the instrument cluster for the seat belt not fastened.
122-V9W9U-09	2017-09-14. Service bulletin. Information: Due to a software error, there is a possibility that the enhanced seat belt diagnostic function may not detect the driver's correctly fastened seat belt on the affected vehicles. If this happens, the warning message "Driver seat belt not fastened, Fasten seat belt" will be displayed in the instrument cluster. Remedial Action: Re-program the airbag control unit using the PIWIS Tester with software version 35.650.010 (or higher) installed.