2009 Porsche Cayenne Electrical system Problems
- Complaints
- 4about this part
- Share
- 27%of 15 total for the year
- Median mileage
- 75,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the electrical system of the 2009 Porsche Cayenne, 27% of the 15 complaints for this model year. Where a mileage was given, the median is 75,500 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Odometer Fraud. The contact purchased a 2009 Porsche Cayenne. The vehicle was a dealer sale. The contact stated that upon taking the vehicle to O’Reilly's for a diagnostic test, the diagnostic report listed the mileage at 209,000; however, at the time of purchase, the vehicle mileage was 105,000. The dealer was not notified of the discrepancy, as per the Attorney's advice.”
NHTSA complaint #11744537, filed 2026-06, 209,000 miles“During normal commute to work driving, a message check dim beam appeared on the dashboard message board. Upon attempting to change a faulty dim beam headlamp bulb, I found headlamp harness wiring and all internal headlamp assembly wiring is cracked and crumbling and conductors are exposed and causing shorts and apparent lamp failure. Other headlamp lighting (side directional lamp) lighting flashed on and off when harness was touched, and other components of electrical system flashed and turned off and on by themselves, particularly the radio. …”
NHTSA complaint #11123534, filed 2018-08, 101,000 miles“Vehicle was parked in garage. Went to use it, opened door to drivers side, dash reads ignition lock fault. Would not start, would not come out of park. Towed to dealer (after towing co. Did emergency unlock of transmission to get out of garage. Vehicle has been at Porsche dealership for a week now, told at first ignition switch was bad. Replaced and still not functioning (no start) now told control module must be replaced as it got wet and vehicle interior floor had gotten wet. …”
NHTSA complaint #10628959, filed 2014-08, 50,000 miles“The electronics on the car are showing a suspension issue. And the electronics on the car do not work for more than 5-7 min before shutdown and restart. This includes radio, bluetooth, GPS, etc. When the electronics start back up the radio is turned on.”
NHTSA complaint #10261287, filed 2009-03, 1,001 milesRelated service bulletins
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- 11032277Apr 11, 2026Parts information for parts withdrawal involving various parts. The vehicles affected are ones that use the part numbers mentioned. Part numbers: 0PD145703E, 0PD145703H…
- 11032276Apr 10, 2026Parts information for parts withdrawal involving the high-voltage battery. The vehicles affected are ones that use the part numbers mentioned. 9J1915099AS, 9J1915100AS, and…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 2 | 40% |
| 2025 | 1 | 20% |
| 2024 | 1 | 20% |
| 2023 | 2 | 40% |
| 2021 | 6 | 29% |
| 2020 | 5 | 21% |
| 2019 | 10 | 21% |
| 2018 | 3 | 23% |
| 2017 | 7 | 39% |
| 2016 | 3 | 8% |
| 2015 | 3 | 21% |
| 2014 | 6 | 11% |
| 2013 | 3 | 8% |
| 2012 | 3 | 11% |
| 2011 | 1 | 3% |
| 2009 | 4 | 27% |
| 2008 | 7 | 26% |
| 2006 | 6 | 15% |
| 2005 | 3 | 9% |
| 2004 | 6 | 16% |
Other parts of the 2009 Porsche Cayenne
6 complaintsFuel system
4 complaintsOther or unknown
2 complaintsElectronic stability control
1 complaintsEquipment
1 complaintsExterior lighting
1 complaintsSeats
1 complaintsTires
1 complaints
← All problems reported for the 2009 Porsche Cayenne
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology