2021 Porsche Cayenne Engine Problems
- Complaints
- 3about this part
- Share
- 14%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 3 complaints about the engine of the 2021 Porsche Cayenne, 14% 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 2026-08“Problem with the hybrid system and the engine control system. Unit changed automatically and unexpectedly from battery power mode to engine power mode when on battery power mode only. This change is not supposed to happen. This failure happened when starting the unit, put on drive and starting to move forward. This failure caused the unit to charge forward with more power unexpectedly. Causing almost to collide. At the time of the failure “engine control system” warning and “e power not available” warning lid up. The unit has been for service for 10 times with the same warnings powering up. …”
NHTSA complaint #11531025, filed 2023-07“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. …”
NHTSA complaint #11453559, filed 2022-02Related service bulletins
- 11037825Sep 22, 2026Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
- 11037822Sep 22, 2026Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils
- 11037818Sep 22, 2026Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils
- 11037801Sep 8, 2026Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
- 11037057Aug 24, 2026Information on Advanced Technical Information for E3.I/G2 V8 – Oil/Air Separator Membrane Failure
- 11037070Aug 10, 2026Parts Information for Parts Withdrawal - Coolant Regulator Housing
- 11035916Jul 22, 2026Allocation of Approved Engine Oils MY 2027 (13/26)
- 11035886Jul 6, 2026Parts Withdrawal - Various Parts
- 11034777Jun 25, 2026Overview of Approved Porsche C20 Engine Oils (20/26)
- 11034776Jun 25, 2026Overview of Approved Porsche C30 Engine Oils (19/26)
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2021 | 3 | 14% |
| 2020 | 7 | 29% |
| 2019 | 6 | 13% |
| 2018 | 3 | 23% |
| 2017 | 3 | 17% |
| 2016 | 5 | 13% |
| 2015 | 3 | 21% |
| 2014 | 5 | 9% |
| 2013 | 7 | 18% |
| 2012 | 4 | 15% |
| 2011 | 12 | 40% |
| 2008 | 6 | 22% |
| 2006 | 3 | 7% |
| 2005 | 1 | 3% |
| 2004 | 9 | 24% |
Other parts of the 2021 Porsche Cayenne
6 complaintsOther or unknown
5 complaintsAir bags
4 complaintsBrakes
2 complaintsForward collision avoidance
2 complaintsSteering
2 complaintsTransmission and drivetrain
2 complaintsBack-over prevention (rear camera)
1 complaintsFuel system
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 27, 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