Service campaign WTF7
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.
| Type | Service campaign |
|---|---|
| NHTSA id | 11034545 |
| Published by NHTSA | 2026-07-06 |
| Manufacturer's number | WTF7 |
| Manufacturer's date | 2026-07-06 |
| Campaign id or software version | WTF7 |
| NHTSA component | ELECTRICAL SYSTEM |
| Manufacturer's system | Battery: Battery sensor control unit |
NHTSA's summary
Due to a software error in the Battery Management System (BMS), there have been isolated cases of an unintentional software reset and consequently a communication error as a result of implausible time differences. This sometimes causes yellow “Battery low” warning messages followed by red “Vehicle electrical system fault” warning messages to appear on the instrument cluster, which automatically reset themselves after the vehicle has been parked.
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
| PORSCHE TAYCAN | 2025, 2026 |
|---|---|
| PORSCHE TAYCAN 4 | 2026 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN 4 CROSS TURISMO | 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN 4S | 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN 4S CROSS TURISMO | 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN GTS SPORT TURISMO | 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN TURBO | 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN TURBO CROSS TURISM | 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN TURBO GT | 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN TURBO S | 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN TURBO S CROSS TURI | 2025, 2026 (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.
| GR13D804 | 2026-10-02. Service bulletin. Parts Information for Parts Withdrawal - High-Voltage Heating (PTC) |
|---|---|
| WTL2 | 2026-10-02. Service campaign. Porsche intranet posting for Campaign WTL2 – Replacing Electric Passenger Compartment Heater |
| No. WTL2 | 2026-10-02. Service campaign. Technical Information for Campaign WTL2 – Replacing Electric Passenger Compartment Heater |
| No. 86-26 | 2026-10-02. Service bulletin. Technical Information for Vehicle Color in Front Display/Control Panel Wrong after Replacing Central Computer (PCM) |
| No. 12-26 | 2026-10-02. Service bulletin. Technical Information for Damage to Nano Plug Contacts Due to Utilization of Incorrect Measuring Equipment |
| No. 43-26 | 2026-10-02. Warranty extension. Technical Information for Warranty Extension for Front Door Wiring Harness related to Real Top View (RTV) issues |
| No. WSL3 | 2026-09-04. Service campaign. Technical Information for Workshop Campaign WSL3 – Replacing the Electric Passenger Compartment Heater |
| No. 2433-4 | 2026-09-04. Service bulletin. Information on Advanced Technical Information for Porsche Mobile Charger NEMA Supply Cable Initialization Failure |
| No. 2315-1 | 2026-09-04. Service bulletin. Information on Advanced Technical Information for Porsche Mobile Charger Plus (PMC+) Red LEDs and Fault B191E49 |
| No. 2109-3 | 2026-09-04. Service bulletin. Information on Advanced Technical Information for Critical 12V Li-ion Battery Recycling |