There are 1 owner-reported engine complaints for the 2015 Porsche Cayennein NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
After the emissions recall was performed the vehicle has an issue that when turning a corner the engine will not produce any power and will not shift down in order to get the car to accelerate. You get no response from the throttle pedal unless you depress it fully to the floor and then the car will jerk and accelerate uncontrollably. This creates an unsafe condition when trying to pull out into traffic. I have almost been in an accident multiple times because of this with oncoming cars and with cars following me as they are trying to merge also and my vehicle will not accelerate. I have driven a vehicle identical to mine that has not had the emissions recall performed and it does not have this issue.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026