2021 Porsche Cayenne Fuel system Problems
- Complaints
- 1about this part
- Share
- 5%of 21 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the fuel system of the 2021 Porsche Cayenne, 5% of the 21 complaints for this model year.
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.
“On my 2021 Porsche Cayenne Base, which is equipped with the 3.0L V6 EA839 engine, I brought the vehicle to the dealership for a recall service. During inspection, the dealership found a leaking water pump and quoted $8,500 for repairs. There were no visible signs of a coolant leak on the ground, indicating an internal seal failure. My independent technician confirmed that coolant is leaking internally into the vacuum system. …”
NHTSA complaint #11760942, filed 2026-08Related service bulletins
- 11037838Sep 23, 2026Technical Information for Need to Replace Components of the High-Voltage Battery - High-Voltage Battery Control Unit / Cell module; No Mixed Installation Permitted: Observe…
- 11037804Sep 9, 2026Technical Information for Filler Flap on Vehicles with Hybrid Drive System (PHEV) Does Not Close
- 11037061Aug 20, 2026Information on Advanced Technical Information for Porsche Mobile Charger NEMA Supply Cable Initialization Failure
- 11037060Aug 20, 2026Information on Advanced Technical Information for Porsche Mobile Charger Plus (PMC+) Red LEDs and Fault B191E49
- 11033625May 22, 2026Parts information for parts withdrawal involving 9J1827447B, PAA971221B, and 95B201060AA. The lock, the fuel tank attachments, and the module connector. The vehicles affected are…
- 11029194Feb 23, 2026Parts information for parts withdrawal involving the fuel filler flap and the charge cable for mains socket. Part numbers 976809857E and 7PP971678GS
- 11029155Feb 13, 2026Parts information for parts withdrawal involving the multi-purpose additive for gasoline. Part number is 00004320902. The vehicles affected are ones that use part number mentioned.
- 11028582Jan 30, 2026Parts information for parts withdrawal involving the - Diagnosis Pump for Fuel System 958906243B and 958906243A. Vehicles affected are ones that use either of the part numbers…
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 1 | 20% |
| 2024 | 1 | 20% |
| 2021 | 1 | 5% |
| 2020 | 1 | 4% |
| 2018 | 2 | 15% |
| 2017 | 3 | 17% |
| 2016 | 5 | 13% |
| 2015 | 2 | 14% |
| 2014 | 7 | 13% |
| 2013 | 5 | 13% |
| 2012 | 1 | 4% |
| 2009 | 4 | 27% |
| 2008 | 4 | 15% |
| 2006 | 19 | 46% |
| 2005 | 16 | 50% |
| 2004 | 9 | 24% |
Other parts of the 2021 Porsche Cayenne
6 complaintsOther or unknown
5 complaintsAir bags
4 complaintsEngine
3 complaintsBrakes
2 complaintsForward collision avoidance
2 complaintsSteering
2 complaintsTransmission and drivetrain
2 complaintsBack-over prevention (rear camera)
1 complaintsSeat belts
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2021 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