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Service bulletin No. 2229.9

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 id10242128
Published by NHTSA2023-09-09
Manufacturer's numberNo. 2229.9
Manufacturer's date2023-08-21
NHTSA componentELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM

NHTSA's summary

Information on advanced technical information for the Cayenne and 911 - conbox current draw discharges 12v battery

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

Electrical system, 12-volt battery

Vehicles listed
PORSCHE 9112020, 2021
PORSCHE 911 CARRERA2020, 2021 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 CARRERA S2020, 2021 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 GT32021 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 TARGA 42020, 2021 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 TURBO2020, 2021 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE2019, 2020, 2021
PORSCHE CAYENNE E-HYBRID2019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE GT2020, 2021 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE GTS2021 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE S2019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE S E-HYBRID2020 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE TURBO2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE TURBO COUPE2020 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE TURBO S E-HYBRID2019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE TURBO S HYB COUPE2020 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE redundant CAYENNE E-HYBRID2020

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
No. 2229.112024-03-05. Service bulletin. Instructions on advanced technical information for the Cayenne and 911 - conbox current draw discharges 12v battery
No. 31-202024-03-04. Service bulletin. Technical information for a diagnosis and handling of 12 volt lithium ion battery
No. 178-222022-12-07. Service bulletin. Technical information for WNN3 - re-programming connect control unit.
No. 2229.42022-12-07. Service bulletin. Instructions on advanced technical information for the conbox current draw discharges 12v battery - for the Cayenne and 911.
No. 2109.12022-01-04. Service bulletin. Instructions on advanced technical information for critical 12V Li-ion battery recycling for the 911, Cayenne, Taycan, and 918 Spyder.
122-F6B5X-102019-10-15. Service bulletin. Instructions for checking for appropriate labels on the Li-Ion battery in the new 911
122-U8T8P-032019-03-25. Service bulletin. Complaint - Battery Low and YellowWarning Message "Battery low _ Service necessary"