Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

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fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
15,000 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2006 Porsche Cayenne engine problems

engine problem

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2006 Porsche Cayenne Owner Comments

problem #2

Sep 252006

Cayenne 6-cyl

  • Automatic transmission
  • 16,000 miles


Vehicle runs inefficiently when cold and smoke has been noted from the exhaust pipe when vehicle is driven. It will turn over, but not catch. Dealership was told by Porsche to use a lower octane fuel (87) to remedy the problem. This contradicts the information in the owner's manual which states only premium unleaded fuel 91 or higher should be used. If the vehicle is taken into a lower altitude area, the fuel should revert to premium. This is a brand new car and it does not start when the engine is turned over, leading me to believe there is a manufacturing defect in the design of the engine. My husband owns a 2004 Cayenne S, which has a 4.5 V-8 instead of the 3.2 liter V-6 and it starts immediately, even when cold.

- Zephyr Cove, NV, USA

problem #1

Jul 242006

Cayenne 4WD 8-cyl

  • Automatic transmission
  • 14,000 miles
Vehicle suddenly loses power ("throttle control" as the service rep puts it), usually while traveling at highway speeds. This causes sudden deceleration, creating issues for surrounding traffic. In each case if I floor the accelerator I can maintain approximately 25 mph to get to a side street, where I arrange for a tow truck. This vehicle has been in the shop three times for a total of a month, during it's first 6 months (14,000 miles) for this condition. Each time the Porsche dealer believes it has been fixed. Intermittent so hard to diagnose.

- Morro Bay, CA, USA

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