Porsche Taycan Software Fault Can Cut Power

NHTSA campaign 21V486000 · Reported Jun 29, 2021 · Porsche Cars North America, Inc.

high How serious is it? About this label

A sudden loss of motive power increases the risk of a crash. The notice does not tell owners to stop driving.

Key facts

NHTSA campaign number	21V486000
Reported to NHTSA	Jun 29, 2021
Manufacturer	Porsche Cars North America, Inc.
Part affected	Engine And Engine Cooling:engine:engine Control Module (ecu/ecm):software
Vehicles covered	2 model/year combinations, model years 2020–2021
Do-not-drive advisory	No
Park-outside advisory	No
Repair	Free at any franchised dealer

What's wrong, in plain English

A software problem in the monitoring system can wrongly detect a fault and shut down the powertrain, causing the car to suddenly lose the power that drives it. Dealers will reprogram the power electronics and the engine control unit to fix this, free of charge.

What you should do

1. Check your VIN at nhtsa.gov/recalls to see if your vehicle is included.
2. Contact a Porsche dealer or customer service at 1-800-767-7243.
3. The software reprogramming is free.

Where do I find my VIN, and what do I tell the dealer?

Your VIN is the 17-character code on the lower left of the windshield, on your registration and usually on your insurance card. Enter it at nhtsa.gov/recalls to see whether this recall is still open on your car. When you call the dealer, say you have an open safety recall and give them NHTSA campaign number 21V486000. More in how recalls work.

Affected vehicles (2)

2020 Porsche Taycan
2021 Porsche Taycan

Who to contact

Porsche — official Porsche recall lookup

Customer service: 1-800-767-7243

Any franchised dealer for the brand can do the repair. Phone numbers are taken from manufacturer sites and recent NHTSA notices; if one has changed, the number in your own recall letter is the one to use.

Other Porsche Taycan recalls

Dec 19, 2025Porsche Cayenne, Panamera and Taycan Rearview Camera Failuremedium
May 5, 2025Porsche Taycan front passenger airbag may switch offhigh
Oct 1, 2024Porsche Taycan Battery Short Circuit Fire Riskcritical
Oct 1, 2024Porsche Taycan High-Voltage Battery Short Circuit Riskcritical
Sep 5, 2024Porsche Taycan headlight software affects parking lightsmedium
Jun 19, 2024Porsche Taycan Front Brake Hoses May Leakhigh

All 25 Taycan recalls

Official notice

Component: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE
Summary: Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2021 Taycan Turbo, Taycan Turbo S, Taycan 4S, 2021 Taycan, Taycan Cross Turismo, Taycan Turbo S Cross Turismo, Taycan 4S Cross Turismo, and Taycan Turbo Cross Turismo vehicles. The monitoring software can incorrectly detect a fault and shutdown the power train, causing a loss of motive power.
Safety risk: A loss of motive power increases the risk of a crash.
Remedy: Dealers will reprogram the power electronics and the engine control unit, free of charge. Owner notification letters were mailed July 30, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB5.

Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.