# 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: 11034544
- Published by NHTSA: 2026\-07\-06
- Manufacturer's number: WTF7
- Manufacturer's date: 2026\-06\-02
- 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-11034544-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11034544-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2025 to 2026 PORSCHE 911
- 2025 to 2026 PORSCHE 911 GT3

## Other bulletins for the same vehicles and component

- [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. 2109\-3](/bulletins/11037058.md), 2026-09-04, Service bulletin: ELECTRICAL SYSTEM. Information on Advanced Technical Information for Critical 12V Li\-ion Battery Recycling
- [No. 65\-26](/bulletins/11037047.md), 2026-09-04, Service bulletin: ELECTRICAL SYSTEM. Technical Information for Horizontal Stripes in Front Control Panel/Central Display \(PCM\)
- [GR13D797](/bulletins/11035889.md), 2026-08-05, Service bulletin: ELECTRICAL SYSTEM. Parts Withdrawal \- Steering Column Switch
- [GR13D794](/bulletins/11035886.md), 2026-08-05, Service bulletin: ELECTRICAL SYSTEM; ENGINE. Parts Withdrawal \- Various Parts
- [ASB2](/bulletins/11035744.md), 2026-08-05, Service campaign: ELECTRICAL SYSTEM; BACK OVER PREVENTION: WARNINGS. Re\-Programming Assistance System Control Unit \(Stop Delivery/Recall Campaign\)
- [GR13D790](/bulletins/11034838.md), 2026-07-08, Other: ELECTRICAL SYSTEM; ENGINE. Parts Withdrawal \- Various Parts
- [03/26 9102](/bulletins/11034790.md), 2026-07-07, Service bulletin: BACK OVER PREVENTION: WARNINGS; ELECTRICAL SYSTEM. Complaint Regarding the Camera View \(Real Top View\) in the PCM Central Display \(03/26\)

JSON: [/v1/bulletins/11034544](/v1/bulletins/11034544)

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