ACC problems
8th Gear
Joined: Aug 2012
Posts: 8
Likes: 0
Cayenne ACC Problems
About 6 Months ago my ACC stopped working and gave the an error message: ACC not available, Driving permitted, Service necessary. I took it to the dealer and they reset it but it almost immediately stopped working again. I went back to the dealer and after looking into it, they told me that it is a software fix. The fix was due in September. That pushed to October, November, and now they say they still don't know when it will be out. Without the ACC, I have no cruise control period. I don't use it much but on trips, my leg gets tired and I really want it. I called Porsche USA and they started a complaint . They have called me back to report but the news is that they have no time frame for the software fix.
Has anyone else had this problem and how was it handled for you? I have owned the car for 1 year and half of that time I have had no cruise control.
Has anyone else had this problem and how was it handled for you? I have owned the car for 1 year and half of that time I have had no cruise control.
Advanced
Joined: Feb 2023
Posts: 52
Likes: 6
I'm having the same problem now show up on my CPO car bought less than 5 months ago. The first error came out the first month of ownership, and then went away. Now, it's completely stopped working. The stealership is chalking it off to "someone probably backed up in you" although there's no scratches on the bumper to cause something like that and are asking $600 for re-calibration. It's worth mentioning that they corrected the front wheel alignment on my first week of ownership as the car was bearing left but never re-calibrated the ACC, I read here that it's often recommended to do them both.
Any advice? Is there somewhere in the service manual or owners manual that states wheel alignment is connected to ACC.
Hoping it's just that and not a bigger issue.
Any advice? Is there somewhere in the service manual or owners manual that states wheel alignment is connected to ACC.
Hoping it's just that and not a bigger issue.