Porsche service campaign WPU1
What it saysTechnical information for WPU1 – Supply Cable with NEMA Power Plug and Updating Porsche Mobile Charger Software (Workshop Campaign). the affected vehicles are Taycan (Y1A / Y1B / Y1C), Panamera E-Hybrid (971), Cayenne… NHTSA’s full summary ↓
Porsche filed this with NHTSA as a service campaign dated Feb 20, 2026, received Aug 6, 2024, about the electrical system — 6 documents under this number: No. 109-24 (5 filings) and 1 more. It names 20 model years (2019–2026). A service campaign is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationTechnical information for WPU1 – Supply Cable with NEMA Power Plug and Updating Porsche Mobile Charger Software (Workshop Campaign). the affected vehicles are Taycan (Y1A / Y1B / Y1C), Panamera E-Hybrid (971), Cayenne E-Hybrid (9YA / 9YB)
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| No. 109-24 | Service campaign | Feb 20, 2026 | 11029193 | PDF, 767 KB |
| No. 109-24 | Service campaign | Feb 20, 2026 | 11029192 | PDF, 680 KB |
| No. 109-24 | Service campaign | Aug 26, 2025 | 11022995 | PDF, 2,209 KB |
| No. 109-24 | Service campaign | Feb 19, 2025 | 11015185 | PDF, 732 KB |
| No. 109-24 | Service campaign | Sep 11, 2024 | 11008465 | PDF, 257 KB |
| WPU1 | Service campaign | Jul 8, 2024 | 11005998 | PDF, 11 KB |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themAlso filed against model years this site has no page for: 2020 Porsche Redundant Cayenne E-Hybrid.
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 19 model years this bulletin names have filed 399 complaints with NHTSA since 2015. 200 of them name Electrical System, Fuel/Propulsion System — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
In-car entertainment, transmissions controls, audio controls, climate controls (front and rear) , car will shut off without turning the key in off position, often times the vehicle will just terminate a call with no warning - no explantion, the rear camera on the screen in reverse show the rear of the car but it stays on for like 10…
2023 Porsche Cayenne · Electrical System · filed with NHTSA Jan 7, 2025 · ODI 11634723
The car is an electric car. I was driving on the highway and the car shut down completely leaving me without power steering, engine control error, electrical system error. I had to glide to the shoulder of the highway. Luckily traffic was light enough that I was able to get over on the highway and avoid getting hit by other vehicles.
2023 Porsche Taycan · Electrical System · filed with NHTSA Oct 18, 2026 · ODI 11771935
As I was making a turn onto another avenue, and accelerating to blend into traffic flow, dashboard messages suddenly appeared 1)"Engine control error, driving still possible, see dealer." 2)"Active lane keeping not available, driving still possible, service required" 3)"Adaptive Cruise Control not available, driving still possible…
2024 Porsche Cayenne · Fuel/Propulsion System · filed with NHTSA Jul 5, 2025 · ODI 11671298
In depth: 2020 Porsche Taycan electrical problems →
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the electrical system
Source: same model, same component group427 other manufacturer communications filed against these Porsche models under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Porsche list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| No. 35-26 | Service bulletin | Sep 29, 2026 | Technical information for a Malfunction Indicator Light Active / Warning Message All-Wheel Drive Disturbed: Fault Memory Entry “U140500 - Te… |
| No. 84-26 | Service bulletin | Sep 9, 2026 | Technical Information for Filler Flap on Vehicles with Hybrid Drive System (PHEV) Does Not Close |
| No. 81-26 | Service bulletin | Sep 8, 2026 | Technical Information for Yellow Warning Message “All-Wheel Drive System Malfunction”, “C12BEF6” and “C133700” in the All-Wheel Electronics… |
| WTK4 | Service campaign | Sep 1, 2026 | Technical Information for Campaign WTK4 – Reset Vehicle Electrical System Battery |
| No. 12-26 | Service bulletin | Sep 1, 2026 | Technical information for Damage to Nano Plug Contacts Due to Utilization of Incorrect Measuring Equipment |
| No. 2109-3 | Service bulletin | Aug 28, 2026 | Information on Advanced Technical Information for Critical 12V Li-ion Battery Recycling |
| WSL3 | Service campaign | Aug 25, 2026 | Porsche intranet posting with information on workshop campaign WSL3 - replacing electric passenger compartment heater |
| No. 2433-4 | Service bulletin | Aug 20, 2026 | Information on Advanced Technical Information for Porsche Mobile Charger NEMA Supply Cable Initialization Failure |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Porsche, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Porsche WPU1 a recall?
No. A service campaign is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the WPU1 repair free?
A service campaign is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does WPU1 cover?
The manufacturer filed it against 20 model years: 2024 Porsche Cayenne, 2023 Porsche Cayenne, 2022 Porsche Cayenne, 2021 Porsche Cayenne, 2020 Porsche Cayenne, 2019 Porsche Cayenne and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.