Service bulletins for the 2011 Porsche 911
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.
423 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Brake lights are shown. Show all
| 122-G8Z4D-10 | 2017-10-15. Service bulletin. EXTERIOR LIGHTING:BRAKE LIGHTS:SWITCH. Information: A Cayenne with optional equipment no. 1D6 will come with a Trailer hitch receiver and wiring up to the receiver hitch that includes a control unit to operate the trailer parking lights, turn signals and brake lights. The Cayenne is also pre-wired for a brake controller. You will need to do the following to hook up the trailer electrics and/or an electric brake controller: |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.