# Service bulletin No. 81\-25

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 bulletin
- NHTSA id: 11024166
- Published by NHTSA: 2025\-10\-08
- Manufacturer's number: No. 81\-25
- Manufacturer's date: 2025\-10\-01
- NHTSA component: POWER TRAIN

## NHTSA's summary

Technical information for Control Unit for Jack \(Front\-Axle Lift\) Without Communication – Warning Message “Chassis Faulty” on Instrument Cluster: Observe Specified Procedure

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11024166-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11024166-9999.pdf)

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

## Components

Transmission and driveline

## Vehicles listed

- 2020 to 2025 PORSCHE 911
- 2022 PORSCHE 911 4S
- 2020 to 2025 PORSCHE 911 CARRERA
- 2023 PORSCHE 911 CARRERA 4
- 2022 to 2023 PORSCHE 911 CARRERA 4 GTS
- 2023 PORSCHE 911 CARRERA 4S
- 2022 to 2024 PORSCHE 911 CARRERA GTS
- 2020 to 2021 PORSCHE 911 CARRERA S
- 2023 PORSCHE 911 CARRERA S
- 2023 to 2024 PORSCHE 911 CARRERA T
- 2023 to 2024 PORSCHE 911 DAKAR
- 2021 to 2025 PORSCHE 911 GT3
- 2023 to 2024 PORSCHE 911 GT3 RS
- 2022 to 2023 PORSCHE 911 GT3 TOURING
- 2020 to 2021 PORSCHE 911 TARGA 4
- 2023 PORSCHE 911 TARGA 4
- 2023 PORSCHE 911 TARGA 4S
- 2023 PORSCHE 911 TARGA GTS
- 2020 to 2023 PORSCHE 911 TURBO
- 2021 to 2023 PORSCHE 911 TURBO S

## Recalls for the same vehicles and component

- [20V381000](/recalls/nhtsa/20V381000.md), 2020-07-01: POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT
- [2019291](/recalls/tc/2019291.md), 2019-06-12: Powertrain
- [19V445000](/recalls/nhtsa/19V445000.md), 2019-06-12: POWER TRAIN:AXLE HUBS; POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT

## Other bulletins for the same vehicles and component

- [No. 91\-26](/bulletins/11037847.md), 2026-10-02, Service bulletin: POWER TRAIN; ENGINE. Technical Information for Particles/Metal Chips/Residues in Engine Oil
- [SY No. 72\-26](/bulletins/11037832.md), 2026-10-02, Service bulletin: ENGINE; POWER TRAIN. Symptom\-based workshop manual for High\-Pitched “Whining” and Whistling Noises in Partial Load Operation from the Engine Area. Note that this bulletin only covers 911 Turbo S with the t\-hybrid system.
- [No. 72\-26](/bulletins/11037830.md), 2026-10-02, Service bulletin: ENGINE; POWER TRAIN. Symptom\-based workshop manual for High\-Pitched “Whining” and Whistling Noises in Partial Load Operation from the Engine Area. Note that this bulletin covers only 911 GTS t\-hybrid models.
- [No. 32\-26](/bulletins/11037826.md), 2026-10-02, Service bulletin: POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of approved Porsche C40 GT engine oils
- [No. 31\-26](/bulletins/11037825.md), 2026-10-02, Service bulletin: POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
- [No. 30\-26](/bulletins/11037822.md), 2026-10-02, Service bulletin: ENGINE; POWER TRAIN. Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils
- [No. 29\-26](/bulletins/11037818.md), 2026-10-02, Service bulletin: ENGINE; POWER TRAIN. Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils
- [No. 28\-26](/bulletins/11037816.md), 2026-10-02, Service bulletin: POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils. Note that this bulletin covers all models back to model year 1984, for which C40 engine oils are allocated.
- [No. 27\-26](/bulletins/11037813.md), 2026-10-02, Service bulletin: POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils. Note that the bulletin covers all models back to model year 1984, for which C20 engine oils are allocated.
- [No. 26\-26](/bulletins/11037812.md), 2026-10-02, Service bulletin: ENGINE; POWER TRAIN. Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils. Note that the bulletin includes all models back to model year 1984, for which C30 engine oils are allocated.

JSON: [/v1/bulletins/11024166](/v1/bulletins/11024166)

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