# 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

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11034545-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11034545-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Vehicles listed

- 2025 to 2026 PORSCHE TAYCAN
- 2026 PORSCHE TAYCAN 4
- 2025 to 2026 PORSCHE TAYCAN 4 CROSS TURISMO
- 2025 to 2026 PORSCHE TAYCAN 4S
- 2025 to 2026 PORSCHE TAYCAN 4S CROSS TURISMO
- 2025 to 2026 PORSCHE TAYCAN GTS SPORT TURISMO
- 2025 to 2026 PORSCHE TAYCAN TURBO
- 2025 to 2026 PORSCHE TAYCAN TURBO CROSS TURISM
- 2025 to 2026 PORSCHE TAYCAN TURBO GT
- 2025 to 2026 PORSCHE TAYCAN TURBO S
- 2025 to 2026 PORSCHE TAYCAN TURBO S CROSS TURI

## Other bulletins for the same vehicles and component

- [GR13D804](/bulletins/11037872.md), 2026-10-02, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM; VISIBILITY/WIPER; FUEL/PROPULSION SYSTEM. Parts Information for Parts Withdrawal \- High\-Voltage Heating \(PTC\)
- [WTL2](/bulletins/11037863.md), 2026-10-02, Service campaign: FUEL/PROPULSION SYSTEM; VISIBILITY/WIPER; ELECTRICAL SYSTEM; STRUCTURE:BODY; POWER TRAIN. Porsche intranet posting for Campaign WTL2 – Replacing Electric Passenger Compartment Heater
- [No. WTL2](/bulletins/11037862.md), 2026-10-02, Service campaign: ELECTRICAL SYSTEM; STRUCTURE:BODY; FUEL/PROPULSION SYSTEM; VISIBILITY/WIPER; POWER TRAIN. Technical Information for Campaign WTL2 – Replacing Electric Passenger Compartment Heater
- [No. 86\-26](/bulletins/11037805.md), 2026-10-02, Service bulletin: ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Technical Information for Vehicle Color in Front Display/Control Panel Wrong after Replacing Central Computer \(PCM\)
- [No. 12\-26](/bulletins/11037795.md), 2026-10-02, Service bulletin: ELECTRICAL SYSTEM. Technical Information for Damage to Nano Plug Contacts Due to Utilization of Incorrect Measuring Equipment
- [No. 43\-26](/bulletins/11037785.md), 2026-10-02, Warranty extension: VISIBILITY/WIPER; ELECTRICAL SYSTEM. Technical Information for Warranty Extension for Front Door Wiring Harness related to Real Top View \(RTV\) issues
- [No. WSL3](/bulletins/11037064.md), 2026-09-04, Service campaign: ELECTRICAL SYSTEM; VISIBILITY/WIPER. Technical Information for Workshop Campaign WSL3 – Replacing the Electric Passenger Compartment Heater
- [No. 2433\-4](/bulletins/11037061.md), 2026-09-04, Service bulletin: FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. Information on Advanced Technical Information for Porsche Mobile Charger NEMA Supply Cable Initialization Failure
- [No. 2315\-1](/bulletins/11037060.md), 2026-09-04, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. Information on Advanced Technical Information for Porsche Mobile Charger Plus \(PMC\+\) Red LEDs and Fault B191E49
- [No. 2109\-3](/bulletins/11037058.md), 2026-09-04, Service bulletin: ELECTRICAL SYSTEM. Information on Advanced Technical Information for Critical 12V Li\-ion Battery Recycling

JSON: [/v1/bulletins/11034545](/v1/bulletins/11034545)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20campaign%20WTF7&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11034545&vehicle=Service%20campaign%20WTF7)