Service bulletins for the 2020 Porsche Cayenne
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.
921 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Transmission control module are shown. Show all
| No. 2020 | 2020-10-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Information on new special tool for offline updates of the PCM Versions 4 and 5. |
|---|
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.