Four problems related to adaptive cruise control have been reported for the 2019 Porsche Cayenne. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2019 Porsche Cayenne based on all problems reported for the 2019 Cayenne.
There's an electrical issue with the vehicle (it is an e-hybrid) with error messages that run in a continuous loop (acc not available, pas restricted, driving light control error, high beam assist not available, lane keep assist restricted). The local dealer has not yet been able to fix the issue. Car is under warranty and has been in the shop for a month. We were called two times to pick up a "fixed vehicle" and each time we had to return the car almost immediately upon leaving the dealership since the problem was not fixed. I've contacted Porsche customer service but as of yet there is no resolution. It is very concerning since some of these error messages do affect vehicle safety.
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.
What component or system failed or malfunctioned, and is it available for inspection upon request? acc radar gats uncalibrated how was your safety or the safety of others put at risk? no at all has the problem been reproduced or confirmed by a dealer or independent service center? yes 4 times in one dealer and 2 times on new dealer has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? only by Porsche dealers were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? yes the message reads:acc not available, driving permitted, service necessary. It first appeared on January 19 2020 still not resolved.
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).