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Service bulletin No. 2527.1

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 id11026345
Published by NHTSA2025-12-05
Manufacturer's numberNo. 2527.1
Manufacturer's date2025-11-11
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Instructions on advanced technical information for troubleshooting Porsche NACS DC Adapter

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 MACAN 4 ELECTRIC2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE MACAN 4S ELECTRIC2025 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE MACAN ELECTRIC2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE MACAN TURBO ELECTRIC2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE TAYCAN2020, 2021, 2022, 2023, 2024, 2025, 2026
PORSCHE TAYCAN 4 CROSS TURISMO2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE TAYCAN 4S2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE TAYCAN 4S CROSS TURISMO2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE TAYCAN CROSS TURISMO2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE TAYCAN GTS2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE TAYCAN GTS SPORT TURISMO2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE TAYCAN TURBO2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE TAYCAN TURBO2026 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE TAYCAN TURBO CROSS TURISM2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE TAYCAN TURBO GT2025 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE TAYCAN TURBO S2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE TAYCAN TURBO S CROSS TURI2021, 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
24V7320002024-10-01. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY; ELECTRICAL SYSTEM:SOFTWARE
24V7310002024-10-01. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY; ELECTRICAL SYSTEM:SOFTWARE
24V2170002024-03-20. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
24V2150002024-03-20. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
23V8410002023-12-13. ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:CABLE/CORD:ONBOARD
23V8400002023-12-13. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
23V6150002023-09-01. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
23V3470002023-05-16. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; SERVICE BRAKES, HYDRAULIC
23V1760002023-03-17. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; SEAT BELTS:FRONT:WARNING LIGHT/DEVICES
21V4860002021-06-29. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION MOTOR:CONTROLLER:SOFTWARE

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
GR13D8042026-10-02. Service bulletin. Parts Information for Parts Withdrawal - High-Voltage Heating (PTC)
WTL22026-10-02. Service campaign. Porsche intranet posting for Campaign WTL2 – Replacing Electric Passenger Compartment Heater
No. WTL22026-10-02. Service campaign. Technical Information for Campaign WTL2 – Replacing Electric Passenger Compartment Heater
No. 93-262026-10-02. Service bulletin. Symptom-based workshop manual for False Warning from Lane Change Assist (LCA) - Warning Light in Exterior Mirror Flashes Without Reason
No. 86-262026-10-02. Service bulletin. Technical Information for Vehicle Color in Front Display/Control Panel Wrong after Replacing Central Computer (PCM)
No. 118-252026-10-02. Service bulletin. Technical Information for Rear Lid Opens/Does Not Close - Replacing Closing Aid Motor for Rear Lid
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. 73-262026-09-04. Service bulletin. Symptom-based workshop manual for Vibrating Steering Wheel and Red Warning Message “Electrical System Fault” - Observe Specified Procedure. Note that this bulletin is only applicable to all Macan Electric and Cayenne Electric models. The combustion and hybrid Cayenne and Macan variants are not applicable to this bulletin.
WTL52026-09-04. Over-the-air update. Porsche intranet posting for Campaign WTL5 Over-the-Air (OTA) Update– Reprogramming the high-voltage battery control unit (BMCe)