Porsche bulletin No. 86-20
What it saysSymptom based workshop manual for Transmission Symptom - Yellow Warning Message, Jammed Claw Clutch, P1D2E00, 00ABC8 NHTSA’s full summary ↓
Porsche filed this with NHTSA as a service bulletin dated Aug 30, 2025, received Jul 1, 2020, about the electrical system — 5 documents under this number. It names 7 model years (2020–2026). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationSymptom based workshop manual for Transmission Symptom - Yellow Warning Message, Jammed Claw Clutch, P1D2E00, 00ABC8
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| No. 86-20 | Service bulletin | Aug 30, 2025 | 11023000 | PDF, 218 KB |
| No. 86-20 | Service bulletin | Jul 26, 2024 | 11005793 | PDF, 339 KB |
| No. 86-20 | Service bulletin | Feb 9, 2024 | 10251167 | PDF, 280 KB |
| No. 86-20 | Service bulletin | Jul 20, 2020 | 10177949 | not found |
| No. 86-20 | Service bulletin | Jun 29, 2020 | 10176855 | not found |
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 themA 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 7 model years this bulletin names have filed 279 complaints with NHTSA since 2015. 197 of them name Electrical System, Power Train — 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.
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
My 2022 Taycan does not show to be one included in the electrical issue recall, however I am experiencing the center screen going dark while driving. Only had the car a little over a week, and it has happen twice, both times on the freeway. Not going slow or stopping, about 60-70MPH. went off for about 20-30 seconds then came back on
2022 Porsche Taycan · Equipment · filed with NHTSA Aug 2, 2022 · ODI 11477194
My complaint is that the car will not move. I get in the car to drive and the car displays the following message, “ Electrical System Error. Stop vehicle in a safe place.” This has happened on numerous occasions(at least 7) since I received the car on February 10, 2021. Mind you I work from home so I don’t drive it but once a week.
2020 Porsche Taycan · Power Train · filed with NHTSA Jun 5, 2021 · ODI 11419735
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 group248 other manufacturer communications filed against the Porsche Taycan 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. 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 |
| No. 2315-1 | Service bulletin | Aug 20, 2026 | Information on Advanced Technical Information for Porsche Mobile Charger Plus (PMC+) Red LEDs and Fault B191E49 |
| No. 65-26 | Service bulletin | Aug 6, 2026 | Technical Information for Horizontal Stripes in Front Control Panel/Central Display (PCM) |
| 48/26 | Service bulletin | Aug 5, 2026 | Additional Action when Working on the High-Voltage Battery: Extended Replacement Requirement for Cell Block Module (48/26) |
| No. 58-26 | Service bulletin | Aug 3, 2026 | Symptom-based workshop manual for Reversing Camera Spray Nozzle Not Working - Dirty/Clogged/Air in the System |
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 No. 86-20 a recall?
No. A service bulletin 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 No. 86-20 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every Porsche warranty extension on file lists the ones Porsche has filed.
Which vehicles does No. 86-20 cover?
The manufacturer filed it against 7 model years: 2026 Porsche Taycan, 2025 Porsche Taycan, 2024 Porsche Taycan, 2023 Porsche Taycan, 2022 Porsche Taycan, 2021 Porsche Taycan and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.