# Service bulletin No. 2508.1

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: 11018792
- Published by NHTSA: 2025\-06\-02
- Manufacturer's number: No. 2508.1
- Manufacturer's date: 2025\-05\-29
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Instructions on advanced technical information for 9YA, 9YB, YAA PHEV\- HV Battery Control Unit \(BMC\) Software Updates

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11018792-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11018792-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2024 to 2025 PORSCHE CAYENNE
- 2024 to 2025 PORSCHE CAYENNE COUPE
- 2024 to 2025 PORSCHE CAYENNE E\-HYBRID
- 2024 to 2025 PORSCHE CAYENNE E\-HYBRID COUPE
- 2024 PORSCHE CAYENNE GTS
- 2024 PORSCHE CAYENNE S
- 2024 PORSCHE CAYENNE S COUPE
- 2024 PORSCHE CAYENNE TURBO E\-HYBRID
- 2024 PORSCHE CAYENNE TURBO GT
- 2026 PORSCHE PANAMERA
- 2025 PORSCHE PANAMERA 4 E\-HYBRID

## Recalls for the same vehicles and component

- [23V841000](/recalls/nhtsa/23V841000.md), 2023-12-13: ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:CABLE/CORD:ONBOARD

## 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. 84\-26](/bulletins/11037804.md), 2026-10-02, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM; STRUCTURE:BODY. Technical Information for Filler Flap on Vehicles with Hybrid Drive System \(PHEV\) Does Not Close
- [No. 81\-26](/bulletins/11037800.md), 2026-10-02, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN. Technical Information for Yellow Warning Message “All\-Wheel Drive System Malfunction”, “C12BEF6” and “C133700” in the All\-Wheel Electronics Control Unit
- [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. 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
- [No. 58\-26](/bulletins/11037048.md), 2026-09-04, Service bulletin: ELECTRICAL SYSTEM; VISIBILITY/WIPER. Symptom\-based workshop manual for Reversing Camera Spray Nozzle Not Working \- Dirty/Clogged/Air in the System
- [No. 65\-26](/bulletins/11037047.md), 2026-09-04, Service bulletin: ELECTRICAL SYSTEM. Technical Information for Horizontal Stripes in Front Control Panel/Central Display \(PCM\)

JSON: [/v1/bulletins/11018792](/v1/bulletins/11018792)

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