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moderate 9 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Of the 10 model years of Porsche Cayenne we track for electrical problems, this one carries the most owner complaints on file — 9.
Electrical accounts for 24% of all owner complaints filed against this vehicle, across 4 categories tracked.
If the driver is not alerted when brake pads are worn out, the driver may lose control of the vehicle while attempting to brake, increasing the risk of crash.
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Tech live look information bulletin for how to use fronline.io on mobile devices and tablets.
full bulletin at NHTSA ↗Tech live look information bulletin for How to use Frontline.io on the HoloLens 2
full bulletin at NHTSA ↗Parts information for parts withdrawal involving 9J1827447B, PAA971221B, and 95B201060AA. The lock, the fuel tank attachments, and the module connector. The vehicles affected are ones that use the part number(s) mentioned.
full bulletin at NHTSA ↗Technical information for a Complaint Regarding the Camera View (Real Top View) in the PCM Central Display
full bulletin at NHTSA ↗Special tools and equipment information for VAS 6296/10 Auto-Ship and Q1 2026 Software Spec Update Available
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
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 charge, and become dead. There are no after market batteries available and if you are 1 mile out of…
Porsches with LiFePO4 Lithium batteries (like mine 2019 Cayenne S) have a software/hardware error that causes the battery to incorrectly send a code to the battery management system so that it will suddenly shutdown the battery permanently and will require a full battery replacement, which the dealers abuse its customers by charging $3,000 to $5,000 dollars and give a battery replacement date as…
In September 2022 the yellow battery warning light appeared on my dash while my car was still under warranty. Porsche had an open Campaign WMJ9 that involved a software update that resolved the issue. Last month, June, while my car was now out of warranty the same yellow warning light appeared but this time the dealership recommended i replace the battery at a cost of $3,200 Porsche refuses to…
It's a documented issue but not catastrophic. 9 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
Based on the 9 complaints filed, electrical issues most often appear around 8,900 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Yes — 1 active recall(s) cover electrical issues on this vehicle. Recall fixes are always free regardless of mileage or warranty status. Use the VIN decoder at the top of the page to check if your specific vehicle is affected.