Software Error Can Cause Loss of Motive Power
Safety Recall
- Manufacturer
- Porsche Cars North America, Inc.
- Units affected
- 10,373
- Recall opened
- Jun 29, 2021
- Owner notification
- Jul 30, 2021
- Manufacturer campaign
- AMB5
- Type
- Vehicle
This recall resulted from an investigation: PE21013: Loss of Motive Power
Affected vehicles (1)
- PORSCHE TAYCAN2020–2021
Component / system
Defect
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.
Risk / consequence
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.
Chronology of events
- Mar 22, 2021
On March 22, 2021, Porsche launched a comprehensive software update for MY20 and MY21 Porsche Taycan vehicles. The update was made available to customers during dealer visits free of charge.
- May 5, 2021
On May 05, 2021, after receiving initial reports of drivability issues on Taycan vehicle, Porsche revised its comprehensive software update to help eliminate the drivability concern. At time of this revision, Porsche did not believe that this presented a safety concern.
- May 17, 2021
On May 17, 2021 NHTSA opened Preliminary Evaluation PE21-013. Porsche immediately began a review of available field information to better understand the performance of the vehicles in the field. The review included field reports and warranty claims , which showed an increasing trend and the potential for loss of motive power in the subject vehicles. Analysis of the related vehicle data revealed a potential loss of motive power, which could be caused by an internal software error in the Pulse-controlled inverter.
- Jun 23, 2021
On June 23, 2021, Porsche determined a safety-related defect existed in the software of the Pulse-controlled inverter and decided to recall and reprogram the affected vehicles with a software update.
Notification schedule
- Dealer notification
- AUG 27, 2021 - AUG 27, 2021
- Owner notification
- AUG 27, 2021 - AUG 27, 2021
Documents (22)
Source: NHTSA campaign 21V486000. Always confirm recall status and remedy availability with the manufacturer or a dealer using your VIN.