Table 1 shows one common vehicle speed control related problems of the 2019 Porsche Cayenne.
| Problem Category | Number of Problems |
|---|---|
| Vehicle Speed Control problems |
While driving my 2019 Porsche Cayenne s on the freeway, the check-engine light came on, followed by a message on the dashboard that read “engine control fault – driving permitted – visit workshop. ” moments later, the vehicle suddenly lost power and decelerated from about ~75 mph to around 55 mph, even though my foot was still on the accelerator. I am [xxx] pregnant and had our [xxx] child in the car at the time. The unexpected loss of speed in fast-moving traffic was frightening. I had to quickly change lanes to reach the slower lane and avoid being hit by other vehicles. After reaching safety, I drove the car to an authorized Porsche dealership, where technicians found an active water-pump leak with coolant entering the vacuum system, which may have caused turbocharger and engine-power failure. This is after I replaced the water pump last year at another Porsche dealership. A photo taken during the incident shows the dashboard warning message as it appeared. This incident created a serious safety hazard, as the vehicle displayed “driving permitted” even though it was at risk of a sudden loss of propulsion at highway speeds. The car and the failed components are available for inspection. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).
The adaptive cruise control has failed 4 times. As a significant driver in terms of miles driven, the lack of cruise control increases my fatigue and jeopardize the safety of all. Porsche dealer in st louis explained there it’s not known fx.
I looked it up and this is what happened previously reported by another owner. I had the exact same experirnce. Nhtsa id number: 11306756.
Last year around January, adaptive cruse control stop working after dealer "fixed" almost closing a collision ( vehicle in motion), today park assist stop working 360 degree view completely off and no sound of proximity obstacles, ( vehicle in motion pulling of parking lot).
There's a electrical issue with the vehicle. Periodically, these error messages run in a continues loop( acc not available, high beam assist not available, driving light control error, pas restricted and camera system restricted). The local dealers have not been able to fix the issue. I opened a Porsche complaint file, which is number 5574318. This issue has been happening since the car was delivered, which was sixteen months ago. Porsche has made little effort in fixing the issue. It very concerning since when the error messages are rolling though it affects several safety features on the vehicle.