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Service campaign No. WSA4

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 campaign
NHTSA id11018795
Published by NHTSA2025-06-02
Manufacturer's numberNo. WSA4
Manufacturer's date2025-05-29
Campaign id or software versionWSA4
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Technical information for WSA4 – Re-Programming Gateway Control Unit (Battery Sensor)

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

Vehicles listed
PORSCHE 9112019, 2020, 2021, 2022, 2023, 2024
PORSCHE 911 4S2022 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 CARRERA2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 CARRERA 42023 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 CARRERA 4 GTS2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 CARRERA 4S2023 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 CARRERA GTS2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 CARRERA S2019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 CARRERA S2023 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 CARRERA T2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 DAKAR2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 GT22019 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 GT2 RS2019 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 GT32019 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 GT32021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 GT3 RS2019 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 GT3 RS2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 GT3 TOURING2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 TARGA 42019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 TARGA 42023 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 TARGA 4S2023 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 TARGA GTS2023 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 TURBO2019, 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE 911 TURBO S2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE2019, 2020, 2021, 2022, 2023, 2024
PORSCHE CAYENNE COUPE2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE E-HYBRID2019, 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE E-HYBRID COUPE2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE GT2020, 2021, 2022 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE GTS2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE S2019, 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE S COUPE2024 (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 TURBO2023 (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 E-HYBRID2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE TURBO GT2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE TURBO S E-HYBRID2019, 2020, 2021, 2022, 2023 (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.

Recalls for the same vehicles and component
23V8410002023-12-13. ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:CABLE/CORD:ONBOARD
19V7350002019-10-16. SERVICE BRAKES; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
19V1150002019-02-20. SERVICE BRAKES; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

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
WTK42026-10-02. Service campaign. Porsche intranet posting with Campaign WTK4 information
No. WTK42026-10-02. Service campaign. Technical Information for Campaign WTK4 – Reset Vehicle Electrical System Battery
No. 103-25-22026-10-02. Service bulletin. Technical Information for Need to Replace Components of the High-Voltage Battery - High-Voltage Battery Control Unit / Cell module; No Mixed Installation Permitted: Observe Specified Approach
No. 86-262026-10-02. Service bulletin. Technical Information for Vehicle Color in Front Display/Control Panel Wrong after Replacing Central Computer (PCM)
No. 84-262026-10-02. Service bulletin. Technical Information for Filler Flap on Vehicles with Hybrid Drive System (PHEV) Does Not Close
No. 81-262026-10-02. Service bulletin. Technical Information for Yellow Warning Message “All-Wheel Drive System Malfunction”, “C12BEF6” and “C133700” in the All-Wheel Electronics Control Unit
No. 12-262026-10-02. Service bulletin. Technical Information for Damage to Nano Plug Contacts Due to Utilization of Incorrect Measuring Equipment
No. 43-262026-10-02. Warranty extension. Technical Information for Warranty Extension for Front Door Wiring Harness related to Real Top View (RTV) issues
No. 2433-42026-09-04. Service bulletin. Information on Advanced Technical Information for Porsche Mobile Charger NEMA Supply Cable Initialization Failure
No. 2315-12026-09-04. Service bulletin. Information on Advanced Technical Information for Porsche Mobile Charger Plus (PMC+) Red LEDs and Fault B191E49