Service bulletin No. 2503.1
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 11020513 |
| Published by NHTSA | 2025-07-09 |
| Manufacturer's number | No. 2503.1 |
| Manufacturer's date | 2025-06-28 |
| NHTSA component | FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; LANE DEPARTURE: WARNING; LANE DEPARTURE: ASSIST; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING |
NHTSA's summary
Instructions on advanced technical information for the advanced driver assistance systems. Please refer to PDF attached for more information regarding this.
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
Driver assistance, Adaptive cruise control, Lane departure and lane keeping
| PORSCHE 911 | 2020, 2021, 2022, 2023, 2024, 2025 |
|---|---|
| PORSCHE 911 4S | 2022 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA | 2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA 4 | 2023 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA 4 GTS | 2022, 2023 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA 4S | 2023 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA GTS | 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA S | 2020, 2021 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA S | 2023 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 CARRERA T | 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 DAKAR | 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 GT3 | 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 GT3 RS | 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 GT3 TOURING | 2022, 2023 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 TARGA 4 | 2020, 2021 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 TARGA 4 | 2023 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 TARGA 4S | 2023 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 TARGA GTS | 2023 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 TURBO | 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE 911 TURBO S | 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE | 2024, 2025 |
| PORSCHE CAYENNE COUPE | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE E-HYBRID | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE E-HYBRID COUPE | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE GTS | 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE S | 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE S COUPE | 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE TURBO E-HYBRID | 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE CAYENNE TURBO GT | 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE MACAN 4 ELECTRIC | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE MACAN 4S ELECTRIC | 2025 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE MACAN ELECTRIC | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE MACAN TURBO ELECTRIC | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA | 2024 |
| PORSCHE PANAMERA | 2026 |
| PORSCHE PANAMERA 4 | 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA 4 E-HYBRID | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA 4 EXECUTIVE | 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA 4S | 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA 4S EXECUTIVE | 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA 4S SPORT TURISMO | 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA E-HYBRID | 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE PANAMERA GTS | 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN | 2020, 2021, 2022, 2023, 2024, 2025 |
| PORSCHE TAYCAN 4 CROSS TURISMO | 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN 4S | 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN 4S CROSS TURISMO | 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN CROSS TURISMO | 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN GTS | 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN GTS SPORT TURISMO | 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN TURBO | 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN TURBO | 2026 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN TURBO CROSS TURISM | 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN TURBO GT | 2025 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN TURBO S | 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| PORSCHE TAYCAN TURBO S CROSS TURI | 2021, 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.
| No. 2606-1 | 2026-09-04. Service bulletin. Information on Advanced Technical Information for E3II V8 Cayenne – Various Assistance System Warning Messages in the Instrument Cluster due to Implausible Drivetrain Coordinator Status |
|---|---|
| No. 2606 | 2026-09-04. Service bulletin. Information on Advanced Technical Information for E3II V8 Cayenne – Various Assistance System Warning Messages in the Instrument Cluster due to Implausible Drivetrain Coordinator Status |
| No. 11-25-4 | 2026-09-04. Service bulletin. Technical Information for White Messages Regarding Driver Assistance Systems in Conjunction with Passive Fault Memory Entries in the ZFAS Control Unit |
| No. 75-25 | 2026-09-04. Service bulletin. Technical Information for Various White Messages Regarding Driver Assistance Systems/Fault Memory Entry "C12D5FA" in the ZFAS Control Unit |
| 2121.4 | 2026-08-05. Service bulletin. ACC Dynamic Calibration Fault C110300 |
| No. 24-26 | 2026-04-07. Service bulletin. Symptom based workshop manual for a Message “Active Lane Keeping Currently Not Available”, Fault in Front Driver’s Side Door Control Unit “U14B700” in Distance Measuring Sensor (ACC) Control Unit |
| No. 11-25 | 2026-01-06. Service bulletin. Technical information for Various Error Messages Regarding Driver Assistance Systems in the Instrument Cluster in Conjunction With Passive Fault Memory Entries in the Driver Assistance Systems Control Unit - ZFAS |
| No. 75-25-2 | 2025-12-05. Service bulletin. Technical information for Various White Messages Regarding Driver Assistance Systems In the Instrument Cluster/Fault Memory Entry "C12D5FA" In the Control Unit for Driver Assistance Systems |
| No. 75-25-1 | 2025-12-05. Service bulletin. Technical information for Various White Messages Regarding Driver Assistance Systems In the Instrument Cluster/Fault Memory Entry "C12D5FA" In the Control Unit for Driver Assistance Systems |
| No. 75-25 | 2025-12-05. Service bulletin. Technical information for Various White Messages Regarding Driver Assistance Systems In the Instrument Cluster/Fault Memory Entry "C12D5FA" In the Control Unit for Driver Assistance Systems |