Porsche Cayenne owners have reported 20 forward collision avoidance related problems since 1996. Table 1 shows the 3 most common forward collision avoidance problems. The number one most common problem is related to the vehicle's adaptive cruise control (15 problems). The second most common problem is related to the vehicle's warnings (4 problems). For details of each of the problem category, use the links in the table.
| Problem Category | Number of Problems |
|---|---|
| Adaptive Cruise Control problems | |
| Warnings problems | |
| Automatic Emergency Braking problems |
Vehicle information: 2021 Porsche Cayenne e-hybrid (VIN: [xxx]) description of defect: while operating the vehicle, the steering column bolt physically backed out and detached, causing an immediate, complete loss of steering control. Read details...
On the afternoon of June 24, 2026, at approximately 5:40 pm, I experienced a severe, sudden braking system failure that directly caused a rear-end collision. I was driving my 2023 Porsche Cayenne e-hybrid on the highway, traveling to a concert scheduled for 7:00 pm. Read details...
On 3 separate occasions while making a left hand turn against traffic, the car has initiated emergency braking and shown the ‘collision warning’ alert on the dashboard. Each time there were no cars approaching and the car halted to a complete stop. Read details...