2019 Porsche Cayenne electrical system problems
10 owner complaints filed with NHTSA name the electrical system on the 2019 Porsche Cayenne — 24% of all complaints for this model year.
What owners report
“The hybrid cooling system on my 2019 Porsche Cayenne E-Hybrid repeatedly displayed a red dashboard warning while the vehicle was in motion: "Hybrid coolant level too low / Park vehicle safely / Let vehicle cool down." This warning appeared on multiple occasions at speeds of approximately 22 mph…”
filed Jun 22, 2026
“2019 Porsche Cayennes (and other Porsche models) have LiFe P04 lithium batteries that have an internal Battery Control Module that causes a "Battery Low " indication. Porsche has been updating the software/ firmware for this module, only for it to fail again. Eventually, the battery will fail, lose…”
filed Nov 13, 2023
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
ConBox Current Draw Discharges 12 V Battery
2229.12 · Service Bulletin/Repair Instructions · issued Jul 29, 2026Re-Programming Assistance System Control Unit (Stop Delivery/Recall Campaign)
ASB2 · Service Campaign · issued Jul 27, 2026Complaint - Battery Low and Yellow Warning Message "Battery low _ Service necessary" in Instrument Cluster: Re-Programming Gateway Control Unit (Battery Sensor) (168/18)
168/18 Update 2 · Service Bulletin/Repair Instructions · issued Jul 23, 2026
Electrical System problems in other Cayenne years
| Year | Reports | Share |
|---|---|---|
| 2020 Cayenne | 4 | 18% |
| 2016 Cayenne | 3 | 8% |
| 2014 Cayenne | 6 | 11% |
| 2013 Cayenne | 3 | 8% |
| 2012 Cayenne | 3 | 11% |
| 2011 Cayenne | 1 | 3% |
| 2008 Cayenne | 7 | 26% |
| 2006 Cayenne | 6 | 15% |
| 2005 Cayenne | 3 | 9% |
| 2004 Cayenne | 6 | 16% |
Other reported problem areas on the 2019 Porsche Cayenne
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.