Porsche Cayenne owners have reported 16 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 (12 problems). The second most common problem is related to the vehicle's warnings (3 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 |
The attached photos show several instances where the car’s safety systems failed. These cases have been erratic, and begin and end frequently. The car is under warranty, but my dealer cannot discern what causes the problems. Read details...
Multiple dash messages indicating failure of driver assistance systems. 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...