2021 Porsche Cayenne Complaints

othe car's tach increase several hundred RPM as the computer tries to match revs when downshifting from 3rd to 2nd gear in Normal Mode and 2nd to 1st gear in Sport Mode.. When that happens, the car lurches forward. owhat seems to be happening is the engine is over-revving while disengaged from a gear on shifts from 3rd to 2nd and even more so on 2nd to 1st causing a lurch forward when the lower gear engages

The contact owns a 2021 Porsche Cayenne. The contact stated that while driving from a complete stop, the steering wheel felt loose. There were no warning lights illuminated. The vehicle was towed to the dealer where it was diagnosed that the tie rod bolt, track bolt, and hexagon head bolt needed to be replaced. The contact stated that the vehicle was repaired; however, the failure persisted and the steering wheel was making abnormal sounds. The vehicle was taken to a second dealer - Porsche South Shore (185 W Sunrise Hwy, Freeport, NY 11520) who test drove the vehicle but could not determine the cause of the abnormal sounds. An unknown part was replaced. The contact stated that the failure reoccurred while driving and she could not control the vehicle. The vehicle was taken back to the second dealer. The vehicle was not repaired. The manufacturer was notified of the failure but did not provide any assistance. The failure mileage was approximately 750.

While coming to a stop the vehicle lurches around 1200 rpms as the rpms are falling. The vehicle appears to already be in 1st gear when this happens. This can be replicated in all driving modes. observation: when braking or even when coasting to a stop the vehicle will slow down rapidly, as if the brakes are being tapped hard (the brake pressure is constant and occurs even when not braking) for a brief second and then release causing a lurching motion. This lurching motion is enough to concern while driving as a possible loss of traction. it feels as if the car is engine braking. This issue puts the driver, passengers, and other vehicles at a safety risk. I have had passengers state that it gives them motion sickness. I have reported this to the dealer and they had the car twice. The second time was for a substantial amount of time. The dealer is on record stating that they can recreate it, observe it, but have not been able to fix it. they have reset the software on several systems...

when decelerating and car is in gear 2 it lurches the car forward while braking, basically fighting the attempt to slow the car down. I attribute this to aggressive downshifting, but is a safety issue because the operator then needs to compensate by pressing down on the brake pedal harder to stop the car. This has happened inconsistently when driving, but occurs more frequently than not.

On my Porsche Cayenne e-Hybrid model, the check engine light came on at less than 1000 miles. Porsche does not know why this happens but I've heard them claim that it's a software problem that has to do with how the car communicates with the charging system. Based on my research, there has been many other owners of the same vehicle with this problem. My vehicle has been in the shop for well over 30 days and Porsche still doesn't know what to do.